Rhodolite Faceting / Facet Garnet Information

Uvarovite (Garnet)

Color: Emerald Green
Moh’s Hardness: 6.5-7
Refractive Index: 1.88-1.89
Critical Angle: 32.13°
Specific Gravity: 3.77
Cleavage: Imperfect
Fracture: Subconchoidal
Heat Sensitivity: Slightly
Crystal Structure: Isometric, rhombic, dodecahedron,icositetrahedron

Treatments: Generally none

What I prefer to polishing with: Alumina oxide with a tin lap (scored).

Jeff’s Comments: Very rare, seldom clean

Design Notes: Design choice is limited by the small size and inclusions, I generally cut a simple checker board that is as deep as I can cut from the rough.

Gram Faceting Archive of Information
This edited version of an article by the late Jeff Graham is part of a special archived informational series from Gram Faceting. Used with permission.