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rainbow moonstone gem t - Newest pictures
gemstones.peperonity.net

☹The Gemstone Moonstone☹

Moonstone is the most well-known gemstone of the feldspar group. Named for its glowing color sheen that resembles the moonlight, Moonstone can belong to several different members of the feldspar group, especially Orthoclaseand Oligoclase. Moonstone displays a unique play of color known as adularescence. This effect is in the form of a moving floating light or sheen. This phenomenon is caused by structural anomalies within the crystal formation.
Chemical Formula Plagioclase Feldspars:(Na,Ca)Al1-2Si3-2O8
Orthoclase Feldspar:KAlSi3O8
ColorWhite, Colorless, Blue, Green, Yellow, Orange, Brown, Pink, Purple, Gray
Hardness6 - 6.5
Crystal System Click herefor information on the Crystallization of Feldspar Minerals.
Refractive Index1.518 - 1.526
SG2.56 - 2.62
Transparency Transparentto translucent
Double Refraction-.0005
Luster Pearly
Cleavage2,1 - basal ; 2,1 - prismatic ; 3,1 - pinacoidal
Mineral Class


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