Kalsilite

Vitreous white to grey feldspathoidal mineral From Wikipedia, the free encyclopedia

Kalsilite

Kalsilite (KAlSiO4) is a vitreous white to grey feldspathoidal mineral that is found in some potassium-rich lavas, such as from Chamengo Crater in Uganda. It has a relative hardness of 5.5.

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Kalsilite
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General
CategoryTectosilicate minerals, feldspathoid group
FormulaKAlSiO4
IMA symbolKls[1]
Crystal systemHexagonal
Crystal class6 2 2 – Trapezohedral
Space groupP6322 (no. 182)
Identification
ColorColorless, white, gray
TenacityBrittle
Mohs scale hardness6
LusterVitreous, greasy
StreakWhite
DiaphaneityTransparent, Translucent
Specific gravity2.59–2.62
References[2]
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