On this page
UnderstandWhat it is, what people ask, how far this page goes
Natural organic and biogenic materials · Organic or biogenic material · Natural identity; treatment status unknown
Bovine Bone
Also known asBone bead
Bone material from cattle, an organic material of animal origin; animal source, processing and import requirements must be checked for the target market. 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 Bovine Bone forms and what gives its colourFormation setting, process and timescale, each finding graded and sourced
- How to identify Bovine BoneHow far lab testing can go
- Hardness of Bovine BoneEach value with its source and check date
- Bovine Bone 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 Bovine BoneThe listing name to use; what must be disclosed before sale
- Standard clauses that define Bovine BoneWhich clause defines it, each cross-checked
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
Cattle bone is an animal-skeletal organic–mineral composite used as an organic gem material in the trade. Bone forms by biomineralisation, its mineral phase dominated by hydroxyapatite (and carbonate hydroxyapatite) combined with organic matter such as collagen. CIBJO's material table lists Bone as an organic gem material and notes possible treatments including bleaching, dyeing, impregnation and waxing. Note: the cited sources include no dedicated authoritative material reference specifically for cattle bone; ivory-type composition and identification data serve only as a general analogue for osseous material and cannot be equated with cattle bone — a specimen's identity (cattle bone, ivory or another bone/tooth material) and treatment require laboratory testing.
Scope: Covers the general compositional framework and possible treatments of bone organic materials; not to be used for identity, treatment or origin assessments of bovine bone samples.
Sources CIBJO Gemstone Book 2022 · G&G Summer 2023
Where it forms
Animal bone forms by biomineralisation within the body (bone tissue); it is not a geological product.
Sources G&G Summer 2023
How it forms, step by step
Animal bone grows by biomineralisation, forming bone tissue of a hydroxyapatite-dominated mineral phase combined with collagen and other organic matter.
Sources G&G Summer 2023 · CIBJO Gemstone Book 2022 · GIA Museum: Ivory Carving
The bone is worked (cut, polished) into gem/decorative material.
Sources G&G Summer 2023 · CIBJO Gemstone Book 2022 · GIA Museum: Ivory Carving
The finished material may be bleached, dyed, impregnated or waxed to alter appearance or stability.
Sources G&G Summer 2023 · CIBJO Gemstone Book 2022 · GIA Museum: Ivory Carving
Identity (cattle bone vs ivory/other) and treatment require laboratory testing.
Sources G&G Summer 2023 · CIBJO Gemstone Book 2022 · GIA Museum: Ivory Carving
Link to appearance
The appearance of bone material (tone, texture, lustre) depends on its hydroxyapatite–collagen structure and working, and can be altered by bleaching or dyeing; appearance alone cannot establish identity.
Sources G&G Summer 2023
Timescale
The cited sources give no absolute timescale for bone as a material (bone is a product of biological growth, and its growth rate is not quantified in these sources).
Sources G&G Summer 2023
Other research findings
CIBJO's material table lists Bone as an organic gem material and notes possible treatments such as bleaching, dyeing, impregnation and waxing.
Evidence grade AScope: Nomenclature/category level; does not establish a specimen's naturalness, treatment or origin.
Sources CIBJO Gemstone Book 2022
Osseous/ivory-type material consists chiefly of collagen together with hydroxyapatite and carbonate hydroxyapatite, hydroxyapatite being regarded as its principal mineral component.
Evidence grade AScope: The cited study examines mammoth ivory; it is only a general analogue for osseous material and does not constitute measured cattle-bone composition.
Sources G&G Summer 2023
Distinguishing natural ivory from imitations requires dedicated training and testing; GIA uses a carving as an educational tool to train identifiers.
Evidence grade AScope: Shows that animal-origin material identity requires testing; draws no conclusion about cattle bone or any specimen.
Sources GIA Museum: Ivory Carving
The cited sources contain no dedicated authority for cattle bone as a material, so its material identity requires testing.
Evidence grade CScope: Flags an evidence gap; it does not mean cattle bone does not exist or is unusable, only that no name-specific authoritative source has been found.
Sources CIBJO Gemstone Book 2022
Limits of this research
- Research status: Only partial material-specific findings found; gaps are stated as gaps
- No dedicated authoritative material-science source on cattle bone has been found; composition and identification use ivory-type data as a general analogue only.
- A specimen's identity (cattle bone/ivory/other), treatment and origin cannot be determined here and require laboratory testing.
- Distinguishing cattle bone from protected animal materials (ivory, tortoiseshell, rhino horn, etc.) requires dedicated testing.
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
- Bovine bone beads
GB/T 16552—2017 5.1.1 b)
Construction or treatment status
Natural identity; treatment status unknown
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
Bovine Bone is Animal bone material; use "Bovine bone beads" for listings, and disclose any known treatments.
What this means for you
Before buying, check the recommended listing name "Bovine bone beads" 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
Care and wear
No care facts are recorded for this entry itself. Its parent material has care records: see Bone.
VerifyNames, standards, technical facts, clauses and sources
Names
Besides Bovine Bone, the name register records "Bone bead", for which no restriction on use as a name is recorded.
Standard and listing namesThe mineral/material name of Bovine Bone is bovine bone; it is not listed in GB/T 16552—2017 Annex A and can be used directly for naming under GB/T 16552—2017. The suggested listing name is bovine bone bead, the trade name/synonym is registered as Bone bead, and the mineralogical name means animal bone material. Names in four languagesFour-language names are given in Simplified Chinese, Traditional Chinese, English (Bovine Bone) and Japanese; the Japanese name is the entry's own, and the wording of Japan's GSJ for it is not yet verified by this site. Institution usageOn authority wording, the FTC and CIBJO texts on file have no wording for Bovine Bone (checked), and GIA and Gem-A wording is unchecked; bodies without a recorded wording show the entry's own English name, which does not represent their position.
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 (1) | ||||
| Bone beadEnglish | 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
- ボーン (not yet checked for this body — the entry's own Japanese name is shown)
- Mineral / material name (not in GB/T 16552 Annex A; usable directly)
- 牛骨 (GB/T 16552—2017 §5.1.1 b))
- Mineralogical name
- Animal bone material
- Trade names and synonyms
- Bone bead (market name)
Four-language names
- 简体中文
- 牛骨
- 繁體中文
- 牛骨
- English
- Bovine Bone
- 日本語
- ボーン
See also: Misleading and prohibited trade names · Supplementary name index
Classification
- Origin
- Natural materials
- Material domain
- Natural organic and biogenic materials
- Browsing family
- Other animal-derived materials
- Identity tier
- Organic or biogenic material
- Mineral chemical class
- Not applicable
- Construction or treatment status
- Natural identity; treatment status unknown
What it is and how it's identified
On durability, the registered material facts for Bovine Bone give a Mohs hardness of 2.5. This figure comes from the cited report's measurements on two cattle bone samples, which gave the same reading; the report measured hardness only and says nothing about toughness or stability. This site notes that hardness alone is not enough to judge whether Bovine Bone is durable. Source: Ishiguro, Sekikawa and Muto, “Identification of ivory” (Japan Customs Central Laboratory report no. 29, 1989), p. 22, Table 3.
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”.
Durability
Bovine Bone — Mohs hardness: 2.5
Japan Customs Central Laboratory (1989)
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))
- Qualification
The report we cite measured two cattle bone samples, and both gave the same reading. The report we cite measured hardness only, with no figure for toughness or stability.
- General note
- hardness only, not durability
Source & check 2026-09-26
- Source
- Ishiguro, Sekikawa & Muto, Identification of Ivory (Japan Central Customs Laboratory Report No. 29, 1989) (Japan Customs): p. 22, Table 3 (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.
Testing and market
The CIBJO laboratory protocol covers Bovine Bone under “Bone” (§6.2.2): see identification on the Bone entry; the required tests are listed on the CIBJO laboratory protocol table for Bone.
How far testing can go
Each row's “Source & check” expands to the full source; the date beside it is the fact check date.
Clause-level definitions
In the CIBJO Gemmological Laboratories Book 2024, the clause-level definition for Bovine Bone is given by the parent entry Bone; the parent entry of Bovine Bone is bone. The visible part of the definition is that bone is the hard material forming the skeletons of most vertebrates. The cross-check result is that it is defined directly by CIBJO, and no identically named English entry was found in this edition of the GB/T annex.
This table scrolls sideways on narrow screens.
| Term | Clause | Definition | Cross-check |
|---|---|---|---|
| Bone | 7.2.2.2 | Bone is the hard material that forms the skeleton of most vertebrate animals. It consists of a network of collagen fibres impregnated with calcium phosphate (a form of apatite). Distinction criteria | Defined directly by CIBJO; no identically named English entry was found in this edition of the GB/T annex. |
Evidence and sources
Authority basis and clause sources
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 Bone on this site: 2 entries listed by this site's parent-entry links; synthetic, treated and similar entries carry their recorded state after the name; this page (Bovine Bone) is marked.
- Bone
Sub-entries (1)
- Bovine Bone
This table scrolls sideways on narrow screens.
| Page | Content | Status |
|---|---|---|
| Browsing family | Other animal-derived materials | Live |
| Related articles | To be added (placeholder) | Planned |
Who maintains this page
The material facts in the Bovine Bone 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; clause-level definitions also carry a cross-check result. The entry exists so that buyers and sellers can check naming, disclosure and material facts item by item.