JDMISGem Reference
Feldspar · Orthoclase Feldspar

Yellow Orthoclase

Yellow Orthoclase — Orthoclase Feldspar

Transparent golden yellow orthoclase is a soft, lustrous collector gem mainly from Madagascar and Sri Lanka. Iron provides the colour and the low RI plus biaxial optic figure confirm the species.

Colour
yellow
Transparency
Transparent
RI
1.518–1.526
SG
2.55–2.61
Mohs
6.0–6.5
Birthstone
June
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