Vanadinite

Species

Uncommon · Pb₅(VO₄)₃Cl

Lead vanadate chloride forming brilliant hexagonal crystals in the oxidised zones of lead deposits. The crystals sit heavier in the hand than their size suggests, from the lead in them. Its vanadium is leached from the surrounding rock and caught by the lead; the metal itself is mined mostly from titanium-rich magnetite.

Identity

Formula
Pb₅(VO₄)₃Cl
Chemical class
Phosphate
Mineral group
Apatite, Mimetite, Pyromorphite
Ore of
Vanadium

Crystallography

Crystal system
Hexagonal
Habits
Prismatic, Tabular, Hollow prismatic
Fracture
Conchoidal

Physical properties

Mohs hardness
3
Density
6.88 g/cm³
Luster
Adamantine, Resinous
Colors
red, orange-red, orange, yellow, brown
Streak
white to yellow
Transparency
Transparent, Translucent

Geology

Origins
Sedimentary
Associated minerals
Mimetite, Wulfenite, Galena, Pyromorphite
Found in
Oxidized zone (gossan)
Geography
Morocco, USA (Arizona), Mexico, Namibia, Australia

Classification

Rarity
Uncommon
Gem quality
No

Sources

Browse the Crystal Encyclopedia — MGS Toolbox