Cassiterite

Cassiterite


Tenkergin Mine, Iul'tinskiy Mining Complex, Chukotskii Autonomous Okrug, Far-Eastern Region, Russia

Item-No.: MINS4881
Price: 25.00 EUR 

Synonyms:  Needle-tin ore, Sparable tin, Tin Spar, Stannum Calciforme, Tinstone
Classification:  Oxides, Rutile Group
Chemical formula:  SnO2
Crystal system:  Tetragonal
Density (g/cm3):  6,98 - 7,01 Measured, 6,993 Calculated
Tenacity:  Brittle
Cleavage:  Imperfect/fair, imperfect on {100}, indistinct on {110} 
Fracture:  Irregular/Uneven, Sub-Conchoidal
Hardness (Mohs):  6 - 7
Colour:  Black, yellow, brown, red or white
Lustre:  Adamantine, Greasy, Sub-Metallic
Streak:  Brownish white, white, greyish
Application:  Important ore of tin