Corundum

Αντικείμενο (πέτρωμα) uoadl:141620 687 Αναγνώσεις

Ταξινομικός αριθμός:
Oxides
D9 (35)
Συστηματική ταξινόμηση:
Oxides
Όνομα:
Corundum
Μεταφρασμένος τίτλος:
Corundum
Προέλευση:
Miask/Orenburg, ex. U.S.S.R.
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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