Ταξινομικός αριθμός:
Sulfides
D5 (33)
D5 (33)
Συστηματική ταξινόμηση:
Sulfides
Όνομα:
Acanthite (Argentite)
Μεταφρασμένος τίτλος:
Acanthite (Argentite)
Προέλευση:
Freiberg/Saxony, Germany
Περιβάλλον γένεσης:
Low-temperature sulfide veins and in zones of secondary enrichment. Acanthite is the low-temperature modification of silver sulphide. All natural silver sulphide specimens at room temperature are acanthite. The structure of argentite, the high-temperature cubic (isometric) form cannot be quenched in. At atmospheric pressure, argentite is stable above 177°C and acanthite is stable below 177°C.
Περιγραφή:
Low-temperature sulfide veins and in zones of secondary enrichment. Acanthite is the low-temperature modification of silver sulphide. All natural silver sulphide specimens at room temperature are acanthite. The structure of argentite, the high-temperature cubic (isometric) form cannot be quenched in. At atmospheric pressure, argentite is stable above 177°C and acanthite is stable below 177°C.
Χημικός τύπος:
Ag2S
Σύστημα κρυστάλλωσης:
Monoclinic
Κρυσταλλικό σχήμα:
Prismatic
Μόνιμη διεύθυνση:
