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

Stone sphere balls - full range in stock "Titanite (Sphene)"

Titanite (sphene) is a mineral that forms single crystals, and transparent titanite crystals are quite rare.
You can see titanite (sphene) stone for sale and buy it in the Minerals of Russia online store.

Physical properties of Titanite

Category nesosilicate
(repeating unit)
IMA symbol Ttn
Strunz classification 9.AG.15
Crystal system Monoclinic
Crystal class Prismatic (2/m)
(same H-M symbol)
Space group P21/a
Unit cell a = 7.057 Å, b = 8.707 Å
c = 6.555 Å; β = 113.81°; Z = 4
Colour Reddish brown, brown, gray, black, yellow, green, or red, colourless
Crystal habit Flattened wedge-shaped crystals, also massive
Twinning Contact and penetration on {100}, lamellar on {221}
Cleavage Distinct on [110], parting on {221}
Fracture Sub-conchoidal
Mohs scale hardness 5 to 5.5
Luster Subadamantine tending to slightly resinous
Streak Reddish white
Diaphaneity Translucent to transparent
Specific gravity 3.48 to 3.60
Optical properties Biaxial (+)
Refractive index nα = 1.843 – 1.950
nβ = 1.870 – 2.034
nγ = 1.943 – 2.110
Birefringence δ = 0.100 – 0.160
Pleochroism Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange
2V angle 17 to 40° (measured)
Dispersion r > v strong
Other characteristics Radioactive.svg Radioactive – may be metamict

Code: 1107
Kirovsky mine, Khibiny, Kola Peninsula, RF

0.00 $ $136.67

Code: 983
Kirovsky mine, Khibiny, Kola Peninsula, RF

0.00 $ $120.00

Code: 984
Kirovsky mine, Khibiny, Kola Peninsula, RF

0.00 $ $65.00

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