Phosphate · Variscite

Variscite

Utah-Nevada's apple-green turquoise stand-in: softer, greener, with yellow-brown matrix. Spot RI about 1.57 and a 688 nm line make the separation easy and worth demonstrating.

Colour
green

Transparency
Opaque

RI
1.560–1.590

SG
2.50–2.61

Mohs
4.5–5.0

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