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Diameter, mm (1mm - 0,039inch)

Stone sphere balls - full range in stock "Galena"

Galena - a mineral, "lead ore" - is the main lead ore. It is described in the writings of Pliny the Elder, an ancient Roman scientist. Widely distributed throughout the world. The largest deposits are in the USA and Russia.

You can see galena stone for sale and buy it in the Minerals of Russia online store.

Physical Properties of Galena

Category Sulfide mineral, octahedral subgroup
(repeating unit)
IMA symbol Gn[1]
Strunz classification 2.CD.10
Dana classification
Crystal system Cubic
Crystal class Hexoctahedral (m3m)
H–M symbol: (4/m 3 2/m)
Space group Fm3m
Unit cell a = 5.936 Å; Z = 4
Color Lead gray and silvery
Crystal habit Cubes and octahedra, blocky, tabular and sometimes skeletal crystals
Twinning Contact, penetration and lamellar
Cleavage Cubic perfect on {001}, parting on {111}
Fracture Subconchoidal
Tenacity Brittle
Mohs scale hardness 2.5–2.75
Luster Metallic on cleavage planes
Streak Lead gray
Diaphaneity Opaque
Specific gravity 7.2–7.6
Optical properties Isotropic and opaque
Fusibility 2
Other characteristics Natural semiconductor
Code: 2019
Etyka, Transbaikalia, RF

0.00 $ $198.33

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