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Minerals - Jamesonit | TerraCollect

Mineral - Jamesonit

JamesonitFePb₄Sb₆S₁₄

Chemical Properties

Mineral Class

Sulfides and sulfosalts

Toxicity

none

Formula

FePb₄Sb₆S₁₄

Unit Cell

a=15.57 b=18.98 c=4.03 β=92° Z=2

Physical Properties

Hardness

2.5

Streak

blackgraygray black

Optical Properties

Color

blackgray

Birefringence

Luster

Metallic,

Silky

Transparency

opaque

Pleochroism

Geomineralogical Properties

Crystal System

monoclinic

Composition

Elements

Mass

Pb

40.14

Fe

2.64

Cu

0.18

Sb

34.25

S

22.34

England (Palache et al. 1952)

Karten-Ebenen

Geologische KarteSatelliten Karte

Density

Heavy (3,5-6)

Cleavage

Distinct after {001}

Fracture

Tenacity

Brittle

Point Group

monoclinic-prismatic - 2/m

Space Group

P21/c (14)

Habit

fibrous, felted, acicular, prismatic, prismatic

Formation

Primary hydrothermal in lead-antimony sulfide veins

Paragenesis

Twinning

Rarity

Rarely

Synonyms

Jamesonit