Andesine — specimen 0342, photo © NMNHS
no precise locality [Africa]
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.
Very clean specimen; design ‘Merle’s Cut’ by Merle Reinikka, excellent cut by Tan Pen.
More information from ‘Classification’
A variety of albite; plagioclase feldspar with an albite:anorthite molar ratio ranging from 50:50 to 70:30.