Rock Identifier
Vanadinite (Pb5(VO4)3Cl) — mineral
mineral

Vanadinite

Pb5(VO4)3Cl

Hardness: 3-4 on Mohs scale; Color: Bright red, orange-red, brown, yellow; Luster: Resinous to adamantine; Crystal Structure: Hexagonal, often forming small prismatic crystals; Cleavage: None distinct; Specific Gravity: 6.8-7.1 (very heavy for its size)

Hardness
3-4 on Mohs scale
Color
Bright red, orange-red, brown, yellow
Luster
Resinous to adamantine
Identified More mineral
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Physical properties

Hardness: 3-4 on Mohs scale; Color: Bright red, orange-red, brown, yellow; Luster: Resinous to adamantine; Crystal Structure: Hexagonal, often forming small prismatic crystals; Cleavage: None distinct; Specific Gravity: 6.8-7.1 (very heavy for its size)

Formation & geological history

Formed as a secondary mineral in the oxidation zones of lead-bearing ore deposits, typically in arid climates.

Uses & applications

Primarily mined as a minor source of the element vanadium and highly prized by mineral collectors for its vibrant color and crystal forms.

Geological facts

Vanadinite belongs to the apatite group and contains toxic lead, so hands should be washed after handling raw specimens.

Field identification & locations

Easily identified in the field by its distinct orange-red color, hexagonal crystal habit, and high specific gravity (heavy feel). Commonly found in Morocco, Mexico, Arizona (USA), and Scotland.