Gemmology
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Andesine — specimen 0342, photo © NMNHS
Andesine — specimen 0342, photo © NMNHS

Andesinespecimen 0342

Origin

no precise locality [Africa]
Data

Weight: 1.57 ct; size: 8.21 | 6.30 | 5.96 mm; shape: oval; colour: light yellow; strong; clarity: eye clean; cut: excellent; treatment: none.
Notes

Very clean specimen; design ‘Merle’s Cut’ by Merle Reinikka, excellent cut by Tan Pen.

Other specimens
Andesine — specimen 0305Andesine — specimen 0306Andesine — specimen 0129Andesine — specimen 0410Andesine — specimen 0331Andesine — specimen 0320Andesine — specimen 0726Andesine — specimen 0727Andesine — specimen 0267Andesine — specimen 0345Andesine — specimen 0278Andesine — specimen 0349

More information from ‘Classification’


A variety of albite; plagioclase feldspar with an albite:anorthite molar ratio ranging from 50:50 to 70:30.