On this page
UnderstandWhat it is, what people ask, how far this page goes
Natural inorganic gem materials · Rock / mineral aggregate · Natural identity; treatment status unknown
Silicified Coral / Fossil Coral
Also known asAgatised coral · Fossilised coral · Petoskey stone
A fossil material in which coral has been replaced or filled by silica; specimens identified as genuine fossils are not subject to the CITES convention. This page compares how the major standards and institutions name it, what must be disclosed when selling it, whether it can be worn every day, how it is treated and identified, and which source each conclusion comes from.
Price, rarity and origin are outside the scope of this wiki.
What this page can answer
This page covers
- How Silicified Coral / Fossil Coral forms and what gives its colourFormation setting, process and timescale; where its colour and optical effects come from, each finding graded and sourced
- How to identify Silicified Coral / Fossil CoralIdentification points from the research literature
- Treatments and enhancements of Silicified Coral / Fossil CoralThe enhancements and treatments the GB/T and JJA/AGL tables list
- Hardness, density and refractive index of Silicified Coral / Fossil CoralEach value with its source and check date
- Silicified Coral / Fossil Coral in English, Chinese and Japanese; national standard namesNames in four languages, the GB/T standard name and the suggested listing name; and: Has any of GIA, FTC, CIBJO or Gem-A put a name for it on record here?
- Listing and disclosing Silicified Coral / Fossil CoralThe listing name to use; what must be disclosed before sale
What we cannot conclude
- Whether one particular bead is natural, treated or synthetic — only a laboratory report can settle that.
- Geographic origin, unless an origin report accompanies the item.
- Price, rarity or investment value: this wiki covers naming and disclosure only.
Material research: formation, causes and history
What authoritative sources say about how this material forms, what causes its colour and optical effects, where its name comes from and how people have used it. Each statement carries an evidence grade and its sources; it describes the material in general, not any specific piece.
How it forms
Silicified coral is a mineralised (fossil) material formed when a coral's calcium carbonate skeleton is replaced or infilled by silica; in the trade it is often called agatised coral or fossil coral. Its formation is petrification, comprising two processes that often occur together: permineralization — silica-bearing groundwater flows through the natural pores of the organic/skeletal material and dissolved ions precipitate out; and replacement — inorganic minerals substitute for the original hard parts that have dissolved away (here a calcium carbonate skeleton). Of the two processes, silicification is the commonest form of permineralization and replacement, above all in fossil wood and bone; the carbonate shells of invertebrates — mollusks, brachiopods and crinoids among them — may likewise be silicified, and corals too. The silica comes mainly from circulating groundwater during diagenesis, sourced from the weathering of rock-forming minerals, volcanic ash, and the skeletal elements of some sponges or zooplankton. The main material of silicified coral is chalcedony/cryptocrystalline quartz (SiO2); small amounts of iron oxides can make it reddish.
Scope: Applies to an overview of the formation process and composition of silicified coral as a mineralised (fossil) material in which the coral skeleton is replaced / infilled by silica; the specific chalcedony / quartz proportions, whether it has been dyed, etc. must be determined case by case.
Sources NPS Permineralization
Where it forms
Diagenetic burial settings where silica-bearing groundwater circulates through the sediment.
Sources NPS Permineralization
Volcanic-ash deposits — volcanic glass is a ready source of silica.
Sources NPS Permineralization
How it forms, step by step
Coral (a calcium carbonate skeleton) is buried and silica-bearing groundwater enters its natural pores.
Sources NPS Permineralization
Dissolved silica precipitates from solution and infills the pores (permineralization), forming a three-dimensional internal mould.
Sources NPS Permineralization
Silica further replaces the dissolved calcium carbonate skeleton (replacement), turning the coral to stone.
Sources NPS Permineralization
Link to appearance
Silicified coral is a petrified material made mainly of chalcedony/cryptocrystalline quartz that can preserve the coral's (micro)structure; its colour may be reddish due to minor iron oxides in the silica.
Sources NPS Permineralization
Timescale
The source gives no specific absolute age for silicified-coral formation (it is described as a diagenetic petrification process).
Sources NPS Permineralization
Related base materials
- Coral (calcium carbonate skeleton): Silicified coral is a mineralised (fossil) material formed when coral skeleton is replaced/filled by silica
- Chalcedony / quartz (silica): The mineralising component of silicified coral is mainly cryptocrystalline quartz (chalcedony)
Supporting findings
Silicification means permineralization and/or replacement by silica, and of all the modes of permineralization and replacement it is the commonest — above all in fossil wood and bone. The carbonate shells of some invertebrates (mollusks, brachiopods, crinoids and including corals) may be silicified as well.
Evidence grade AScope: A petrification-mechanism description; coral is one example of a carbonate material that can be silicified.
Sources NPS Permineralization
The silica for silicification comes from circulating groundwater during diagenesis, sourced from the weathering of rock-forming minerals, volcanic ash, and the silica skeletons of some sponges or zooplankton; volcanic-ash deposits are especially silica-rich.
Evidence grade AScope: Describes the silica source and setting.
Sources NPS Permineralization
Recorded localities
Authoritative sources list the localities below; the list is not exhaustive.
North America
- Florida, United StatesFlorida state stone since 1979; the source says it is indigenous to Florida, with no production statement
Sources Florida Geological Survey
These are localities recorded by authoritative sources, not an origin finding for any individual piece. The CIBJO Gemstone Book (2022, §4.2.3) says a place of origin names where a gem was mined or harvested, is a matter of opinion, does not imply a level of quality, and that cutting, processing or exporting centres must not be used to imply origin. See the origin determination guide and the overview of recorded localities.
Causes of colour and optical effects
Silicified coral may be reddish due to minor iron oxides in the silica (silicified fossils are commonly reddish because small amounts of iron oxides colour the silica).
Evidence grade AScope: A colour-cause statement; not all silicified coral is red.
Sources NPS Permineralization
How it is identified
Silicified coral has been replaced by silica and can resemble silica materials and other corals in appearance, so unaided inspection cannot readily determine its composition or origin. Judging its mineral composition and origin depends on laboratory testing such as microscopic structure, spectroscopy, and compositional analysis; the cited sources give no self-identification method, and conclusions must come from an accredited laboratory.
Evidence grade AScope: Appearance cannot replace identification; determination requires testing by an accredited laboratory, and this entry gives no self-test method or threshold.
Sources CIBJO Coral Blue Book 2024
Other research findings
Silicified coral is a mineralised (fossil) material formed when a coral's calcium carbonate skeleton is replaced or infilled by silica, and its main material is cryptocrystalline quartz (chalcedony); it is traded as agatised coral or fossil coral and is not a single mineral species.
Evidence grade AScope: Naming and material classification; the main material is silica (chalcedony/quartz).
Sources NPS Permineralization · G&G Fall 2013
The main material of silicified coral is chalcedony/cryptocrystalline quartz (SiO2) and other silica phases; chalcedony is a cryptocrystalline silica with a waxy lustre.
Evidence grade AScope: A mineral-composition statement.
Sources NPS Permineralization · G&G Fall 2013
In the CITES Appendices valid from 5 March 2026, the Appendix II listing of stony corals (Scleractinia spp.) carries annotation A26, which states that fossils are not subject to the provisions of the Convention.
Evidence grade AScope: States only what is printed in the CITES Appendices; whether a given piece is a genuine fossil, and how far it has been silicified, has to be established by testing. National law is not covered. Not legal advice.
Sources CITES Appendices (2026)
Limits of this research
- Research status: Formation, occurrence or other material-specific findings found in authoritative sources
- The sources do not specifically discuss the name "silicified coral"; this record is built from the NPS general account of petrification (which includes an example of a silicified fossil coral). The database flags it as requiring identification and compliance review.
- No absolute age for silicified-coral formation is given by the sources.
- Definitions of the trade names agatised coral / fossil coral / Petoskey stone are not supplied in the sources consulted.
Methodology
- Origin determination and its limits
- Quality grading and value factors
- How gemmology became a technical discipline
Evidence grades
- A
- Standards bodies, government geological surveys, peer-reviewed research and museum records
- B
- Institutional educational material
- C
- Specialist databases or cautious readings
A statement is never graded above its strongest source.
This section is LumaLark's own factual restatement of public authoritative sources, credited item by item; it contains no verbatim excerpts, images or third-party logos.
DecideListing name, disclosure, care and treatments
- Suggested listing name
- Silicified Coral (state the mineral composition)
16 CFR Part 23 §23.1 · CITES Appendices 2026 A26, “SCLERACTINIA”
Construction or treatment status
Natural identity; treatment status unknown
Treatments recorded for this material: Dyed, Filled / Fracture-filled
Related:Disclosure and cautions
This page cannot answer
Natural? · Origin · Price
A lab report settles these; this wiki covers naming and disclosure.
Related:What this page can answer
Answer at a glance
"Silicified Coral / Fossil Coral" is a market name rather than a mineral species name; before using it, verify: Laboratory identification required before the name is used.
Evidence
What this means for you
Before buying, check the recommended listing name "Silicified Coral (state the mineral composition)" and any disclosed treatments on this page, and ask the seller for a grading report if in doubt.
Known uncertainty
- This entry's exact material identity is not fully settled.
- See “Disclosure and cautions” above
- Last reviewed
- 2026-09-01
Trade-name ruling
- Laboratory identification required before the name is used.
- Suggested listing name
- Silicified Coral (state the mineral composition)
Treatments and identification leads
One row per treatment, with three standards side by side: how often it occurs and how stable it is (CIBJO), its category in GB/T 16552—2017 Table B.1 (this site's paraphrase) and how the JJA/AGL 2025 table lists it. Each CIBJO value links to its entry under “Testing and market”, where the wording and source are given in full.
This table scrolls sideways on narrow screens.
| Treatment | Market frequency (CIBJO) | Stability (CIBJO) | GB/T 16552 category | JJA/AGL listing | Identification leads |
|---|---|---|---|---|---|
| Dyeing | — | — | Treatment | — | — |
| Filling | — | — | Graded — see §5.4.1, Table 1 | — | — |
“—” means the cited source gives no value for that item, not “none”. Source: GB/T 16552—2017 Table B.1 (row for Silicified Jade)
Whether a treatment has to show in the name differs between the two rule sets (this site’s paraphrase):
- GB/T 16552—2017: a method classed as treatment has to be stated in the name itself — the method put before the name, or added in brackets after it; a method classed as optimization does not need to appear in the name, though one marked “Optimization (annotation required)” still has to be noted in the quality documents. Source: §5.4.2.1 a), b); §5.4.2.2 a)
- CIBJO Gemstone Book 2022: no longer splits treatments into ones that need specific disclosure and ones that need only general disclosure: every treatment is to be disclosed, and the seller tells the buyer which treatment was used and what special care it calls for. Source: §4.2.5 Note 2, §4.2.5.1, pp.14–15
VerifyNames, standards, technical facts, clauses and sources
Names
Besides Silicified Coral / Fossil Coral, the name register records "Agatised coral", "Fossilised coral" and "Petoskey stone", for which no restriction on use as a name is recorded.
Standard and listing namesThe Chinese formal name of Silicified Coral / Fossil Coral comes from the “Silicified jade (silicified asbestos/petrified wood/silicified coral)” row of GB/T 16552—2017 Table A.2; the suggested listing name is Silicified Coral (state the mineral composition). Names in four languagesThe four-language names are the Simplified and Traditional Chinese names, English Silicified Coral / Fossil Coral and the Japanese names. Trade and mineralogical namesTrade names and synonyms include Agatised coral, Fossilised coral and Petoskey stone. Institution usageThe wording of GIA, FTC, CIBJO and Gem-A for Silicified Coral / Fossil Coral is all not yet verified by this site, and Silicified Coral / Fossil Coral does not represent the position of GIA, FTC, CIBJO or Gem-A; the GSJ (Japan) wording for the Japanese names is not yet verified by this site. Trade and mineralogical namesGB/T 34098—2017 Table A.1 lists no trade name in its “Silicified coral” row, the cited source giving no value; a table note states that the trade names listed are not exhaustive.
Name register
Every name recorded for this entry, with how it is classified, whether it may be matched to this entry automatically, whether it may be used as a product name, and the clause it rests on.
This table scrolls sideways on narrow screens.
| Name | Type | Matching | Use as a name | Basis |
|---|---|---|---|---|
| no restriction recorded (3) | ||||
| Agatised coralEnglish | market name | matched automatically | no restriction recorded | editorial ruling (no clause cited) |
| Fossilised coralEnglish | market name | matched automatically | no restriction recorded | editorial ruling (no clause cited) |
| Petoskey stoneEnglish | market name | matched automatically | no restriction recorded | editorial ruling (no clause cited) |
How each authority words this name: see Names › Authority wording.
- GSJ (Japan) formal name
- 珪化珊瑚／化石珊瑚 (not yet checked for this body — the entry's own Japanese name is shown)
- Chinese formal name
- 硅化珊瑚 (GB/T 16552—2017 Table A.2, row “Silicified Jade(Silicified Asbestos/ Silicified Wood/ Silicified Coral)”)
- Mineralogical name
- Coral replaced or filled by silica; often sold as agatised or fossil coral
- Trade names and synonyms
- Agatised coral (market name) · Fossilised coral (market name) · Petoskey stone (market name)
Four-language names
- 简体中文
- 硅化珊瑚
- 繁體中文
- 硅化珊瑚
- English
- Silicified Coral / Fossil Coral
- 日本語
- 珪化珊瑚／化石珊瑚
GB/T 34098 trade names
GB/T 34098-2017 Table A.1 shows “—” in the trade-name cell of the silicified coral row, i.e. no trade name is listed; the table note says the list is not exhaustive.
The full table and naming rule are on the Quartzose Jade page.
See also: Misleading and prohibited trade names · Supplementary name index
Classification
- Origin
- Natural materials
- Material domain
- Natural inorganic gem materials
- Browsing family
- Fossil and mineralized materials
- Identity tier
- Rock / mineral aggregate
- Mineral chemical class
- Mixed / composition-dependent
- Construction or treatment status
- Natural identity; treatment status unknown
Treatments listed by standards
In GB/T 16552—2017 Annex B, Table B.1, Silicified Coral / Fossil Coral falls under the Silicified Jade row, which groups silicified wood, silicified coral and silicified asbestos together and lists dyeing and filling as the enhancement and treatment methods: dyeing improves or changes colour and is categorised as a treatment; filling improves or changes durability and appearance, and its category is graded. What Table B.1 is and how each grade is defined are explained on the Gem treatments page.
GB/T 16552-2017, Annex B, Table B.1
Table B.1, row “Silicified Jade (Silicified Asbestos/Silicified Wood/Silicified Coral)” (p.16):
This table scrolls sideways on narrow screens.
| Method | Effect | Category |
|---|---|---|
| Dyeing | Improves or changes colour | Treatment |
| Filling | Improves or changes durability and appearance | Graded — see §5.4.1, Table 1 |
What Table B.1 is, and how the “see 5.4.1” grades are defined: see the GB/T 16552: optimization vs treatment page.
What it is and how it's identified
The structure of Silicified Coral / Fossil Coral is registered as a quartz aggregate, formed by silica replacing coral, ranging from cryptocrystalline to phanerocrystalline, granular or fibrous, in which the concentric radiating features of coral can be seen. Values taken from silicified jade (including silicified asbestos, petrified wood and silicified coral, the whole category): structure (overall) a crystalline aggregate, Mohs hardness 5–7, no cleavage, density 2.48–2.85 g/cm³, optically an anisotropic aggregate, birefringence not measurable in aggregates, and among optical effects a cat's-eye effect may be seen. The refractive index of 1.544–1.553 is also taken from silicified jade as a whole category; this site notes that the clause also has finer sub-ranges and the overall value is registered. When untreated, polished surfaces usually show a vitreous lustre and fracture surfaces a waxy lustre; for silicified jade as a whole category, when untreated, a vitreous lustre is also registered, with greasy or waxy lustre on fractures.
Registered material facts
Each row carries its own source and check date and can be cited on its own; “—” means the cited source gives no value, not “none”.
Chemical composition, luminescence, UV-visible spectrum, infrared spectrum, magnification: these whole-class features are given in the cited clause for silicified jade (the whole class), so they are not repeated on the Silicified Coral / Fossil Coral page; see the material facts on the Silicified Jade entry.
Items below that name the class they cover give the cited clause’s value for that whole class, not a measurement of Silicified Coral / Fossil Coral (how to read class-level values).
Structure
structure (overall)2 sources compared
Silicified Coral / Fossil Coral — structure (overall): a cryptocrystalline to phanerocrystalline quartz aggregate formed where silica has replaced coral. The texture is granular and fibrous, and the concentric radial pattern of the coral can be seen.
GB/T 34098—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-17
- Source
- GB/T 34098—2017 Quartzose jade — Classification and nomenclature (GB/T): §5.7 (locator checked 2026-09-17)
- Fact checked on
- 2026-09-17
Silicified Coral / Fossil Coral — structure (overall): crystalline aggregate
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- silicified jade (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.6 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Durability
Silicified Coral / Fossil Coral — Mohs hardness: 5–7
GB/T 16553—2017
Reference points on this site: Talc 1–3, Fluorite 4, Apatite 5–5.5, Orthoclase 6–6.5, Topaz 8, Diamond 10 (Source: GB/T 16553—2017); Gypsum 1.5–2, Calcite 3, Quartz 7 (Source: Handbook of Mineralogy); Corundum 9 (Source: GIA Gem Encyclopedia (care guide))
- Does this standard apply
- applies to this entry
- What this covers
- silicified jade (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.6 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Silicified Coral / Fossil Coral — cleavage: none
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- silicified jade (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.6 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Physical properties
Silicified Coral / Fossil Coral — density: 2.48–2.85 g/cm³
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- silicified jade (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.6 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Optical
Silicified Coral / Fossil Coral — optic character: anisotropic aggregate
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- silicified jade (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.6 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Silicified Coral / Fossil Coral — refractive index: 1.544–1.553
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- silicified jade (the whole class)
- General note
- the clause has finer ranges
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.6 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Silicified Coral / Fossil Coral — birefringence: not measurable on an aggregate
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- silicified jade (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.6 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Silicified Coral / Fossil Coral — pleochroism: not measurable on an aggregate
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
- What this covers
- silicified jade (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.6 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Silicified Coral / Fossil Coral — optical effect (chatoyancy): seen
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- silicified jade (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.6 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Silicified Coral / Fossil Coral — body colour: yellowish white, greyish white, yellowish brown, orange-red and other colours.
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
- Qualification
In chapter 5 of GB/T 16553—2017, the colour entries of Quartzite Jade, Rhodochrosite, Chicken-blood Stone and other variety clauses also name white or a whitish colour.
- General note
- colour alone is not identity
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.6 Colour · Silicified coral (locator checked 2026-09-28)
- Fact checked on
- 2026-09-26
Silicified Coral / Fossil Coral — common colours: yellowish white, greyish white, yellowish brown, orange-red and similar colours.
GB/T 34098—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
- Qualification
Among the quartzose jade varieties in GB/T 34098—2017, Quartzite Jade, Chalcedony, Agate and other varieties also name white or a whitish colour among their common colours; the standard separates these varieties by crystallinity and by whether they show silica-replacement pseudomorphs.
- General note
- colour alone is not identity
Source & check 2026-09-26
- Source
- GB/T 34098—2017 Quartzose jade — Classification and nomenclature (GB/T): §5.7 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
- CIBJO definitions
- chatoyancy
Quality factors
quality factor (lustre)2 sources compared
Silicified Coral / Fossil Coral — quality factor (lustre): polished surfaces commonly vitreous; fracture surfaces commonly waxy.
GB/T 34098—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
Source & check 2026-09-20
- Source
- GB/T 34098—2017 Quartzose jade — Classification and nomenclature (GB/T): §5.7 (locator checked 2026-09-17)
- Fact checked on
- 2026-09-20
Silicified Coral / Fossil Coral — quality factor (lustre): vitreous; greasy or waxy on the fracture; silicified asbestos may also show a silky luster.
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
- What this covers
- silicified jade (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.6 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Each row's “Source & check” expands to the full source; the date beside it is the fact check date.
This material (RI / SG midpoints): 1.548 / 2.67; Closest values: 1Agate 1.537 / 2.63, 2Shoushan Stone 1.56 / 2.7, 3Changhua Stone 1.56 / 2.6, 4Bamboo Coral 1.57 / 2.65, 5Synthetic Beryl 1.57 / 2.69
Show the full chart (330 registered materials)
Outside the full chart's range, drawn as triangles at the edge (RI / SG midpoints): Hematite 3.045/5.12, Synthetic Rutile 2.76/4.26, Rutile 2.753/4.23, Synthetic Moissanite 2.67/3.22
Evidence and sources
Authority basis and clause sources
Sources
- CIBJO – The World Jewellery Confederation. Gemmological Laboratories Book (Blue Book), Gemmological Commission 2024-1.
- CIBJO – The World Jewellery Confederation. The Gemstone Book (Blue Book), 2022.
- SAMR / SAC (China). GB/T 16552—2017 Gems — Nomenclature.
- GIA – Gemological Institute of America (United States). Gem Encyclopedia.
- Gem-A – The Gemmological Association of Great Britain (United Kingdom).
- eCFR (United States). 16 CFR § 23.1 — Deception (general). In: 16 CFR Part 23 — Guides for the Jewelry, Precious Metals, and Pewter Industries.
- AQSIQ / SAC (China). GB/T 34098—2017 Quartzose jade — Classification and nomenclature.
Further reading
Related entries and topic cluster
Parent entry and related pages on this site. Rows marked “Planned” are suggested new content and have no link yet.
This table scrolls sideways on narrow screens.
| Page | Content | Status |
|---|---|---|
| Browsing family | Fossil and mineralized materials | Live |
| Treatments recorded for this material | Dyed, Filled / Fracture-filled | Live |
| Related articles | To be added (placeholder) | Planned |
Who maintains this page
The material facts in the Silicified Coral / Fossil Coral entry are maintained by the LumaLark wiki and matched one by one to the standard clauses or institutional sources they cite: every fact carries its source (with a clause or page locator) and a check date, so it can be traced back to the original. The entry exists so that buyers and sellers can check naming, disclosure and material facts item by item.