Ταξινομικός αριθμός:
D27 (32)
Συστηματική ταξινόμηση:
Orthosilicates
Μεταφρασμένος τίτλος:
Titanite
Προέλευση:
Achmatov / Orenburg, ex U.S.S.R.
Περιβάλλον γένεσης:
Common accessory mineral in intermediate and felsic plutonic rocks, pegmatites, alpine veins. Also in some gneisses, schists and skarns.
Περιγραφή:
Also known as Sphene, this calcium titanium silicate forms flattened wedge-shaped crystals, commonly twinned with prominent re-entry angles; massive, compact and lamellar forms are also found. It occurs as an accessory mineral in igneous rocks; in schists, gneisses and other metamorphic rocks, and is also found as a detrital mineral in some sedimentary deposits.
Χημικός τύπος:
CaTiSiO5
Σύστημα κρυστάλλωσης:
Monoclinic
Κρυσταλλικό σχήμα:
Prismatic
Μόνιμη διεύθυνση:
