Rhodochrosite on Quartz

Rhodochrosite – Mn(CO₃)

Elements: Manganese, Carbon, Oxygen

Class: Carbonates

Crystal System: Hexagonal

Hardness: 3.5-4

Fluorite

Talc (1)Diamond (10)

Softer than glass. A steel knife scratches it.

Quartz – SiO₂

Elements: Silicon, Oxygen

Class: Silicates – Tectosilicates

Crystal System: Hexagonal

Hardness: 7

Quartz

Talc (1)Diamond (10)

Very hard. Scratches glass and steel.

Cabinet: Large Cabinet (10 cm+) Origin: Sunnyside Minde San Jan Co., Colorado – Usa

More minerals containing Carbon