Call number:
C23
Translated title:
Spessartite on Orthoclase
Place of origin:
Shingus Gilgit distr., Pakistan
Depositional environment:
Spessartite: occurs in magmatic, metamorphic, and pegmatitic rocks. Orthoclase: intrusive and extrusive igneous, and metamorphic rocks.Common feldspar of granites, syenites and high grade metamorphic rocks.
Donor:
A. Vafidis
Description:
Spessartite: occurs in magmatic, metamorphic, and pegmatitic rocks. Orthoclase: intrusive and extrusive igneous, and metamorphic rocks.Common feldspar of granites, syenites and high grade metamorphic rocks.
Chemical formula:
Mn3Al2(SiO4)3 - KAlSi3O8
Crystal system:
Isometric - Monoclinic
Crystal schema:
Hexoctahedral - Prismatic
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