Vesuvianite group · Idocrase (Vesuvianite)

Yellow-Brown Idocrase

Transparent golden-brown idocrase is a bright, dispersive collector gem of modest price. The 464 nm line and anomalous interference colours clinch the identification.

Colour
orange

Transparency
Transparent to translucent

RI
1.713–1.718

SG
3.32–3.45

Mohs
6.5

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