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  3. Vesuvianite

Polished stones - full range in stock "Vesuvianite"

Vesuvianite is a typical skarn mineral of hydrothermal origin. It occurs both in crystalline form and in the form of continuous masses. It has several varieties that differ in chemical composition and appearance.

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

Physical properties of Vesuvianite

General
Category Sorosilicate
Formula
(repeating unit)		 Ca10(Mg, Fe)2Al4(SiO4)5(Si2O7)2(OH,F)4
IMA symbol Ves
Strunz classification 9.BG.35
Crystal system Tetragonal
Crystal class Ditetragonal dipyramidal (4/mmm)
H-M symbol: (4/m 2/m 2/m)
Space group P4/nnc
Unit cell a = 15.52 Å, c = 11.82 Å
Z = 2
Identification
Color Yellow, green, brown; colorless to white, brown-black, light green, emerald green, violet, blue-green to blue, pink, purple, red, black, commonly zoned
Crystal habit Short pyramidal to long prismatic crystals common, massive to columnar
Twinning Fine twin domains observed
Cleavage Poor on {110} and {100} very poor on {001}
Fracture Sub conchoidal to irregular
Tenacity Brittle
Mohs scale hardness 6–7
Luster Vitreous to resinous
Streak White
Diaphaneity Subtransparent to translucent
Specific gravity 3.32–3.43
Optical properties Uniaxial (−)
Refractive index nω = 1.703–1.752
nε = 1.700–1.746
Birefringence 0.004–0.006
Pleochroism slight in colored varieties
Solubility Vesuvianite is virtually insoluble in acids
Other characteristics striated lengthwise
Vesuvianite
Code: 1..25
Vesuvianite
Munilkansky field, Khas-Khayakhtakh ridge, Momsky district, Yakutia, RF
150*54*39mm

0.00 $ $93.33

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