Feldspar · Orthoclase Feldspar

Colourless Orthoclase

Transparent colourless orthoclase is a rare, low-key collector gem. Its low RI, biaxial character and cleavage separate it quickly from rock crystal or glass.

Colour
colourless to white

Transparency
Transparent

RI
1.518–1.526

SG
2.55–2.61

Mohs
6.0–6.5

Birthstone
June

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