Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)
cubiccommonSilicates
Feldspar
(K,Na,Ca)AlSi3O8
The image displays a white to light gray, blocky mineral, likely forming a matrix for the blue aquamarine crystals. It shows a somewhat dull to vitreous luster.
Feldspar Physical Properties
Mohs Hardness
6Crystal System
cubicLuster
vitreousStreak Color
whiteCleavage
Two distinct cleavages at or near 90 degreesFracture
uneven/conchoidalSpecific Gravity
2.55Colors
white, pink, gray, green, yellow, brown, colorlessTransparency
transparent/translucentType Locality
Shengus (Shingus), Haramosh Mts., Skardu District, PakistanMineral Group
SilicatesUses
ceramics, glass, abrasives, construction, gemstonesAssociated Minerals
beryl, aquamarineRarity
commonGeological Context
Feldspars are the most abundant group of minerals in the Earth's crust, found in igneous, metamorphic, and sedimentary rocks, crystallizing from magma or lava, or forming during metamorphism.
