Name : Indian Aurora Quarry
Code : DIAQ01
Synonyms: Aruba, Aruba Tropical, Indian Aurora, Indora
Group: Metamorphite
Petrographic assignment: Gneiss - migmatite
Age: 570 m. years (Pre-Cambrian)
Colouring minerals: Dark areas: Black biotite - red areas: reddish feldspar (by hematite)
Average hardness: 6-7 (according to Mohs's hardness scale 1-10)
Deposit: India - Hyderabad - Nizamabad
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