TENNANTITE

Geological & Scientific Details

Tennantite is classified as a sulfosalt minerals mineral which typically crystallizes in the cubic system. Its chemical formula is Cu6[Cu4(Fe,Zn)2]As4S13. Common crystal habits include massive to well formed crystals.

Key Geological Properties:

• Mineral Category: Sulfosalt minerals
• Chemical Formula: Cu6[Cu4(Fe,Zn)2]As4S13
• Crystal System: Cubic
• Predominant Geological Color: Flint-gray to iron-black, cherry-red in transmitted light
• Crystal Habit: massive to well formed crystals
• Twinning: Contact and penetration twins
• Cleavage: None
• Luster: Metallic, commonly splendent
• Streak: reddish gray
• Diaphaneity: Opaque, except in very thin fragments