Calcite (“Phantom” Crystals) on Mottramite

Calcite – Ca(CO₃)

Elements: Calcium, Carbon, Oxygen

Class: Carbonates

Crystal System: Hexagonal

Hardness: 3

Calcite

Talc (1)Diamond (10)

A copper coin can scratch it.

Mottramite – PbCu(VO₄)(OH)

Elements: Lead, Copper, Vanadium, Oxygen, Hydrogen

Class: Vanadates

Crystal System: Orthorhombic

Hardness: 3-3.5

Calcite

Talc (1)Diamond (10)

A copper coin can scratch it.

Origin: Tsumeb Mine, Tsumeb, Otjikoto Region – Namibia

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