Corundum

Αντικείμενο (πέτρωμα) uoadl:141661 220 Αναγνώσεις

Ταξινομικός αριθμός:
Oxides
D59 (3)
Συστηματική ταξινόμηση:
Oxides
Όνομα:
Corundum
Μεταφρασμένος τίτλος:
Corundum
Προέλευση:
Renfrew County/Ontario, Canada
Περιβάλλον γένεσης:
Contact and regionally metamorphosed rocks. Silica-poor rocks, such as Nepheline-Syenites, alkali igneous undersaturated rocks, contact aureoles in altered aluminous shales, aluminous xenoliths in high temperature plutonic and hypabyssal rocks, metamorphosed bauxite deposits, and as a detrital material in sediments.
Περιγραφή:
Contact and regionally metamorphosed rocks. Silica-poor rocks, such as Nepheline-Syenites, alkali igneous undersaturated rocks, contact aureoles in altered aluminous shales, aluminous xenoliths in high temperature plutonic and hypabyssal rocks, metamorphosed bauxite deposits, and as a detrital material in sediments.
Χημικός τύπος:
Al2O3
Σύστημα κρυστάλλωσης:
Trigonal
Κρυσταλλικό σχήμα:
Hexagonal Scalenohedral

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