Green Diamond Engagement Jewelry 81

Green Diamond Engagement Jewelry. 

By Farzana Aamir. 

primary deposit.

General

Category Native Minerals

Formula

(repeating unit) C

Strunz classification 01.CB.10a

Identification

Formula mass 12.01 g⋅mol−1

Color Typically yellow, brown or gray to colorless. Less often blue, green, black, translucent white, pink, violet, orange, purple and red.

Crystal habit Octahedral

Crystal system Isometric-Hexoctahedral (Cubic)

Cleavage 111 (perfect in four directions)

Fracture Conchoidal (shell-like)

Mohs scale hardness 10

Luster Adamantine

Streak Colorless

Diaphaneity Transparent to subtransparent to translucent

Specific gravity 3.52±0.01

Density 3.5–3.53 g/cm3

Polish luster Adamantine

Optical properties Isotropic

Refractive index 2.418 (at 500 nm)

Birefringence None

Pleochroism None

Dispersion 0.044

Melting point Pressure dependent

References