JDMISGem Reference
Synthetic · Synthetic Spinel

Synthetic Spinel

Synthetic Spinel — Synthetic Spinel

The imitation workhorse: cheap, flawless, hard, and imitating half the gem counter. RI near 1.728 with crosshatch ADR identifies it in one reading.

Colour
colourless to white
Transparency
Transparent (opaque versions exist for inlay)
RI
1.725–1.732
SG
3.52–3.66
Mohs
8.0
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