Gemstones Tools

Sunstone

Sunstone oval cabochon
(sun'-ston')

13th c.; ind-eur s(u)wen; Ger. stein , Slav. stena, Sansk. styayate

Feldspar exhibiting in certain directions a brilliant spangled appearance, which has led to its use as an ornamental stone, also called aventurine feldspar
Color
Shiny orange, brown to red
Family
Feldspar
Chemical composition
Na(AlSi3O8)Ca(Al2Si2O8)
Crystal system
Triclinic
Hardness (Mohs scale)
6 - 6,5
Specific gravity
2,63 ±0,02
Refractive index
1,532 - 1,542
Birefringence
0,010
Optical character
Biaxial +
Chanthaburi

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Jaipur

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