JDMISGem Reference
Cnidarian (colonial marine animal skeleton) · Coral

Dark Coral

Dark Coral — Coral

Dark coral gathers the black and deep-brown horny corals plus dyed dark imitations - structure, hot point and paperwork separate them.

Colour
grey
Transparency
Opaque
RI
1.560–1.570
SG
1.30–2.12
Mohs
3.0–4.0
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