Bone | Gemopedia

Since prehistoric times, people have used animal bones for ornamentation. Their relative softness lends to beautiful carvings for both detailed figurines and jewelry, often as beads. Cultures without access to ivory often used bone for similar purposes.
Colors
White To Light Yellow but might be dyed any color

Bone Classification

Common Name

Bone

Species

NA

Variety

Colors

White To Light Yellow but might be dyed any color

Alternate Names

Gemstone Groups

Key Separations

Magnification

Comments

Bone Optical Properties

Transparency

Opaque

Refractive Index

1.54

Birefringence

Optic Character

NA

Optic Sign

NA

Polariscope Reaction

Aggregate (AGG)

Fluorescence

SWUV: Inert
LWUV: Inert

CCF Reaction

Pleochroism

None

Dispersion

Strength: none

Comments

Bone Chemistry & Crystallography

Chemical Name

calcium hydroxylapatite

Chemical Formula

Synthesis

Crystal System

NA

Classification

Organic

Nature

Natural

Crystallinity

Non-Crystalline

Comments

Bone Characteristic Physical Properties

Hardness

2.5

Streak

Specific Gravity

Typical:2

Toughness

Inclusions

Bone has a parallel fibrous structure. If the piece is viewed as a cross section you can see the remnants of blood vessels. These areas will appear round or oval and might have a dark appearance if stained or filled with a foreign substance.

Luster

Dull

Stability

Fracture

Cleavage

None

Comments

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