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Natural inorganic gem materials · Trade name: inclusion / visual-effect descriptor · Natural identity; treatment status unknown

Quartz with flower-like inclusions

A Chinese trade name for Quartz with flower-like or cloudy internal features; the type of inclusions and whether fractures have been filled must be tested. 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

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

Glue-flower quartz is an appearance-based trade name for quartz prized for flower- or cloud-like internal features. These features are generally linked to secondary fractures in the quartz and the secondary inclusions they capture: after crystal growth, tectonic or fluid activity fractures the crystal, the fractures heal, and secondary inclusions that cut across growth zones are trapped; secondary fluids entering along fractures can also create a cloud/flower look. Because such features may arise from natural fracture healing or may involve fissure filling, the exact mineral composition and the presence of any filling (e.g., resin injection, dyeing) require case-by-case testing, and the available authoritative sources do not define this trade name.

Scope: Used to explain the relationship between 'flower'-like / cloud-like internal features and secondary fractures and secondary inclusions; no determination is made of their specific composition or whether the material has been filled.

Sources G&G Spring 2017 · G&G Spring 2023 · G&G Fall 2024

Where it forms

The quartz crystal is fractured by later tectonic or fluid activity.

Sources G&G Spring 2023 · G&G Fall 2024

Secondary inclusions are trapped as fractures heal; these inclusions cut across growth zones.

Sources G&G Spring 2023 · G&G Fall 2024

Secondary fluids entering along fractures can produce cloud/flower-like internal features.

Sources G&G Spring 2023 · G&G Fall 2024

How it forms, step by step

  1. The quartz completes its main growth in an open cavity.

    Sources G&G Spring 2017 · G&G Spring 2023 · G&G Fall 2024
  2. Later tectonic/fluid activity creates internal fractures in the crystal.

    Sources G&G Spring 2017 · G&G Spring 2023 · G&G Fall 2024
  3. Secondary inclusions appear when fractures or deformation features close up after the crystal has grown; the inclusions so trapped cut across the growth zones.

    Sources G&G Spring 2017 · G&G Spring 2023 · G&G Fall 2024
  4. Secondary fluids distribute along fractures, producing flower- or cloud-like internal features.

    Sources G&G Spring 2017 · G&G Spring 2023 · G&G Fall 2024
  5. The exact composition and whether the features are filled must be tested on the sample.

    Sources G&G Spring 2017 · G&G Spring 2023 · G&G Fall 2024

Link to appearance

Flower- or cloud-like internal features, generally related to healed secondary fractures and their inclusions/fluids; appearance cannot determine whether the stone was filled.

Sources G&G Spring 2017 · G&G Spring 2023 · G&G Fall 2024

Timescale

The available authoritative sources give no growth duration or absolute age for glue-flower quartz, nor any timing for the secondary fracturing event.

Sources G&G Spring 2017 · G&G Spring 2023 · G&G Fall 2024

Related base materials

  • Quartz (SiO2): inclusion-bearing-quartz-of | This type of material is quartz containing inclusions, attached to the mineral species quartz, not an independent mineral species

Supporting findings

After quartz growth, healed fractures can trap secondary inclusions that cut across growth zones.

Evidence grade A

Scope: The general mechanism for secondary inclusions; makes no claim about the age of fractures in a given sample.

Sources G&G Fall 2024

Secondary fluids entering along fractures can produce flower- or cloud-like internal features, corresponding to the trade 'glue flower'.

Evidence grade B

Scope: Links secondary fluids to the appearance as an interpretive inference, hence rated B.

Sources G&G Spring 2023

How it is identified

The colour and inclusion appearance of 'glue-flower-quartz' cannot establish whether a stone is natural, synthetic or treated: quartz varieties that look alike may differ entirely in composition, growth history and treatment, and synthetic and natural quartz share essentially the same composition and physical properties, so the unaided eye cannot separate them. Laboratory identification rests on measurable properties and the division of labour between instruments — a polariscope with a conoscope lens can judge colour-zoning orientation from extinction and optic-axis readings, a refractometer gives refractive-index values, and EDXRF with infrared spectroscopy supplies chemical and structural fingerprints. Limitations: some methods depend on how the stone was cut and on comparison with reference material, and the final conclusion must be issued by an accredited gemological laboratory through testing rather than inferred from appearance.

Evidence grade A

Scope: Identification and separation points; testing must be performed by an accredited gemological laboratory, and no self-test thresholds are given.

Sources G&G Summer 2014 · CIBJO Gemstone Book 2022

Other research findings

Glue-flower quartz is an appearance-based trade name, not a mineralogical name; the exact composition of its internal features is undefined in the available authoritative sources and requires testing.

Evidence grade C

Scope: A naming-boundary judgement; sources do not define this trade name.

Sources G&G Fall 2024

The available authoritative sources do not address whether 'glue-flower quartz' has fissure filling (resin, dye, etc.); its treatment status requires testing.

Evidence grade C

Scope: States uncertainty about treatment; does not deny that some samples may be untreated.

Sources G&G Spring 2017

Limits of this research

  • Research status: Formation, occurrence or other material-specific findings found in authoritative sources
  • 'Glue-flower quartz' is an appearance-based trade name; its internal composition and filling status are unsupported by authoritative sources, so those claims are rated C.
  • No growth duration or absolute age, and no dating of the secondary fracturing event.

Methodology

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
Included Quartz (appearance-based trade name; state the identification result)

GB/T 16552—2017 5.1.1 c)

Construction or treatment status

Natural identity; treatment status unknown

Treatments recorded for this material: Heated / Heat-treated (via parent material), Irradiated (via parent material), Filled / Fracture-filled (via parent material), Dyed (via parent material), Coated (via parent material)

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

"Quartz with flower-like inclusions (Chinese trade name: jiaohua)" is a market name rather than a mineral species name; before using it, verify: Trade name rather than a mineralogical species name. Laboratory identification required before the name is used.

What this means for you

Before buying, check the recommended listing name "Included Quartz (appearance-based trade name; state the identification result)" and any disclosed treatments on this page, and ask the seller for a grading report if in doubt.

Known uncertainty

Last reviewed
2026-09-01

Trade-name ruling

  • Trade name rather than a mineralogical species name.
  • Laboratory identification required before the name is used.
Suggested listing name
Included Quartz (appearance-based trade name; state the identification result)

Care and wear

No care facts are recorded for this entry itself. Its parent material has care records: see Quartz.

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.

TreatmentMarket frequency (CIBJO)Stability (CIBJO)GB/T 16552 categoryJJA/AGL listingIdentification leads
Heating——Optimization——
Irradiation——Optimization——
Filling——Graded — see §5.4.1, Table 1——
Dyeing——Treatment——
Coating——Treatment——

“—” means the cited source gives no value for that item, not “none”. Source: GB/T 16552—2017 Table B.1 (row for Rock Crystal)

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

The name register below lists 2 names for Quartz with flower-like inclusions in non-Latin scripts: 2 with no restriction recorded on use as a name.

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.

NameTypeMatchingUse as a nameBasis
no restriction recorded (2)
红胶花Simplified Chinesemarket namematched automaticallyno restriction recordededitorial ruling (no clause cited)
黄胶花Simplified Chinesemarket namematched automaticallyno restriction recordededitorial ruling (no clause cited)

How each authority words this name: see Names › Authority wording.

Authority wording

GIA, FTC, CIBJO, Gem-A
Quartz with flower-like inclusions (not yet checked by this site — the entry's own English name is shown)
GSJ (Japan) formal name
「膠花水晶」インクルージョン入りクォーツ(中国市場名) (not yet checked for this body — the entry's own Japanese name is shown)
GB/T naming counterpart (this name is not in the standard)
水晶 (GB/T 16552—2017 §5.1.1 c))
Mineralogical name
Quartz with flower/cloud-like internal features; exact inclusions and any fissure filling require testing

Four-language names

简体中文
胶花水晶
繁體中文
膠花水晶
English
Quartz with flower-like inclusions (Chinese trade name: jiaohua)
日本語
「膠花水晶」インクルージョン入りクォーツ(中国市場名)

Qualifiers stripped from the headline name

  • GIA, FTC, CIBJO, Gem-A (not yet checked; this qualifier is part of the entry's own English name): (Chinese trade name: jiaohua)

See also: Misleading and prohibited trade names · Supplementary name index

Classification

Origin
Natural materials
Material domain
Natural inorganic gem materials
Browsing family
Quartz and chalcedony materials
Identity tier
Trade name: inclusion / visual-effect descriptor
Mineral chemical class
Silicates
Construction or treatment status
Natural identity; treatment status unknown

Treatments listed by standards

GB/T 16552-2017, Annex B, Table B.1

Under the “Rock Crystal” row of Table B.1: Heating Optimization; Irradiation Optimization; Filling Graded — see §5.4.1, Table 1; Dyeing Treatment; Coating Treatment. The full row, with the effect column, is on the Rock Crystal page.

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 material facts for Quartz with flower-like inclusions are taken from GB/T 16553—2017 for rock crystal as a whole class, not measured on Quartz with flower-like inclusions separately. For rock crystal as a whole class, the structure is crystalline and trigonal, with hexagonal prismatic crystals showing distinct horizontal striations on the prism faces; there is no cleavage. For rock crystal as a whole class, density is 2.64–2.69 g/cm³, with a clause value of 2.66 and a tolerance of +0.03/−0.02, from which the limits of the range are derived. For rock crystal as a whole class, the optic character is anisotropic, uniaxial positive, possibly with a bull's-eye interference figure, and Brazil-law twinning is common in amethyst; refractive index is 1.544–1.553 and birefringence 0.009. For rock crystal as a whole class, pleochroism is weak and varies with colour, untreated; the lustre is vitreous, untreated. For rock crystal as a whole class, the cat's-eye effect can be seen as an optical effect, and asterism appears as six-rayed stars, mostly in rose quartz.

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 rock crystal (the whole class), so they are not repeated on the Quartz with flower-like inclusions page; see the material facts on the Rock Crystal entry.

Items below that name the class they cover give the cited clause’s value for that whole class, not a measurement of Quartz with flower-like inclusions (how to read class-level values).

Structure

Quartz with flower-like inclusions — structure (overall): crystalline

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Quartz with flower-like inclusions — structure (crystal system): trigonal

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Quartz with flower-like inclusions — structure (crystal habit): hexagonal prisms with prominent horizontal striations on the prism faces

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Durability

Quartz with flower-like inclusions — Mohs hardness: 7

GB/T 16553—2017

123456789107References (diamond = value, bar = range; below)

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))

Mohs hardnessSource: GB/T 16553—2017
Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Quartz with flower-like inclusions — cleavage: none

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Physical properties

Quartz with flower-like inclusions — density: 2.64–2.69 g/cm³

GB/T 16553—2017

0.51.52.53.54.55.56.57.52.64–2.69
Specific gravitySource: GB/T 16553—2017
Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Qualification

The clause we cite gives 2.66, with a stated tolerance of +0.03 / -0.02. The range shown here is worked out from that.

Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Optical

Optical effects on record: chatoyancyrepresentative example: cause in Tiger’s Eye (schematic)asterismrepresentative example: cause in Star Sapphire (schematic)

Quartz with flower-like inclusions — optic character: anisotropic material, uniaxial, with positive optic character; a “Bull's eye” interference figure may be present, and Brazil-law twinning is common in amethyst.

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Quartz with flower-like inclusions — refractive index: 1.544–1.553

GB/T 16553—2017

1.31.72.12.52.93.31.544–1.553
Refractive indexSource: GB/T 16553—2017
Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Quartz with flower-like inclusions — birefringence: 0.009

GB/T 16553—2017

00.050.10.150.20.250.30.009
BirefringenceSource: GB/T 16553—2017
Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Quartz with flower-like inclusions — pleochroism: weak; it depends on the body colour.

GB/T 16553—2017

Treatment state
untreated
Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Quartz with flower-like inclusions — optical effect (chatoyancy): seen

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Quartz with flower-like inclusions — optical effect (asterism): seen; a six-rayed star, common in rose quartz.

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (locator checked 2026-09-26)
Fact checked on
2026-09-26
CIBJO definitions
chatoyancy, asterism

Quality factors

Quartz with flower-like inclusions — quality factor (lustre): vitreous

GB/T 16553—2017

Treatment state
untreated
Does this standard apply
applies to this entry
What this covers
rock crystal (the whole class)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.16 (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.

1.531.541.551.561.571.582.52.62.72.82.9Refractive indexSpecific gravity12345Quartz with flower-like…

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)1.41.51.61.71.81.922.12.22.32.41234567Refractive indexSpecific gravity12345Quartz with flower-like inclusions

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

Refractive index × specific gravity (all registered materials)Each dot is one material's registered refractive index and specific gravity (range midpoints, not measurements); gold = this material, dark = the nearest few (picked on this site by distance in RI ÷ 0.02 and SG ÷ 0.1, leaving out near-identical varieties of the same species)Source: each material's registered refractive index and specific gravity facts (GB/T 16553 and others; sources on each entry)

Evidence and sources

Authority basis and clause sources

GB/T 16552—2017
Not listed the name does not occur anywhere in the text; scope: Chapter 1 “Scope” · Source
GB/T 16552—2017
Naming rule 5.1.1 c) · Source

Sources

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.

Related-entry tree for Quartz on this site: 74 entries listed by this site's parent-entry links; synthetic, treated and similar entries carry their recorded state after the name; this page (Quartz with flower-like inclusions) is marked.

This table scrolls sideways on narrow screens.

PageContentStatus
Browsing familyQuartz and chalcedony materialsLive
Treatments recorded for this materialHeated / Heat-treated (via parent material), Irradiated (via parent material), Filled / Fracture-filled (via parent material), Dyed (via parent material), Coated (via parent material)Live
Related articlesTo be added (placeholder)Planned

Who maintains this page

The material facts in the Quartz with flower-like inclusions 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.

Facts editor
June
Reviewer
Ralph
How facts are checked
Each fact is matched to the clause it cites; facts checked on 2026-09-26
Last revised
2026-10-12
Purpose
Lets buyers and sellers check naming, disclosure and material facts clause by clause.

Spotted an error? Report it on the forum