Black Quartzite (metamorphic rock)3D ModelNoAI
Locality: Sardinia, Italy
No.: 9289
Size: 6.2 x 4.4 x 3 cm
Type: Metamorphic rock - non-foliated
Description: Quartzite is a granular, non-foliated (granoblastic) metamorphic rock, consisting mainly of quartz and formed by the recrystallization of quartz-rich sedimentary rocks (protolith/parent-rock: sandstone, conglomerate, chert, and others) by either regional or contact metamorphism. Also named meta-quartzite. Variations in colors, in textures, and in impurities (up to 40%) give rise to numerous varieties (e.g., white quartzite, micaceous quartzite, feldspathic quartzite, brown quartzite, magnetitic quartzite, etc.).
Essential minerals: quartz
Non-essential minerals: mica, feldspar, etc.
Website: http://geology.uaic.ro/muzee/mineralogie/
Concept & 3D-modelling by Andrei Ionut APOPEI
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