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Minerals - Vanadinite | TerraCollect

Mineral - Vanadinite

VanadinitePb₅(VO₄)₃Cl

Chemical Properties

Mineral Class

Vanadates

Toxicity

low

Formula

Pb₅(VO₄)₃Cl

Unit Cell

a=10.32 c=7.34 Z=2

Physical Properties

Hardness

3

Streak

whiteyellow

Density

Very Heavy (>6)

Optical Properties

Color

brownredorangeyellow

Birefringence

0.066

Luster

Adamantine

Transparency

translucent,

transparent,

opaque

Pleochroism

Geomineralogical Properties

Crystal System

Composition

Elements

Mass

P₂O₅

0.30

As₂O₅

0.01

V₂O₅

19.10

PbO

78.07

CaO

0.07

Cl

2.66

O=Cl₂

0.60

Austria (Palache et al. 1952)

Karten-Ebenen

Geologische KarteSatelliten Karte

Cleavage

Fracture

conchoidal,

uneven

Tenacity

Brittle

hexagonal

Point Group

hexagonal-dipyramidal - 6/m

Space Group

P63/m (176)

Habit

blocky, crusty, prismatic, pyramidal, tabular

Formation

Secondarily, in the oxidation zone of vanadium-bearing lead deposits, through the reaction of weathering lead sulfides (galena) with vanadium-rich solutions from the host rock under arid conditions.

Paragenesis

Twinning

Rarity

Common

Synonyms

Vanadinite

Groups and Members

Apatite-Supergroup

Apatite-Group