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  2. Collectible minerals
  3. Titanite (Sphene)

Collectible minerals - 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

General
Category nesosilicate
Formula
(repeating unit)		 CaTiSiO5
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
Identification
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

Titanite, Knopite
Code: 3868
Titanite, Knopite
Afrikanda, Kola Peninsula, RF
62*41*31mm

0.00 $ $30.00

Titanite
Code: 638
Titanite
Kirovsky mine, Khibiny, Kola Peninsula, RF
68*78*63mm

0.00 $ $31.67

Titanite, Clinochlore
Code: 800
Titanite, Clinochlore
Saranovskoye field, Perm region, midl Urals, RF
72*49*37mm

0.00 $ $150.00

Titanite, Knopite
Code: 825
Titanite, Knopite
Afrikanda, Kola Peninsula, RF
28*19*11mm

0.00 $ $21.67

Titanite (sphen) archived
Code: 3266
Titanite (sphen)
Kirovsky mine, Khibiny, Kola Peninsula, RF
27*19*8mm

0.00 $ $15.00

Titanite, Knopite archived
Code: 2866
Titanite, Knopite
Afrikanda, Kola Peninsula, RF
43*26*24mm

0.00 $ $16.67

Titanite, Knopite archived
Code: 2867
Titanite, Knopite
Afrikanda, Kola Peninsula, RF
38*25*12mm

0.00 $ $16.67

Titanite archived
Code: 2507
Titanite
Kirovsky mine, Khibiny, Kola Peninsula, RF
86*52*45mm

0.00 $ $24.33

Titanite archived
Code: 967
Titanite
Kirovsky mine, Khibiny, Kola Peninsula, RF
40*22*8mm

0.00 $ $25.00

Titanite archived
Code: 968
Titanite
Kirovsky mine, Khibiny, Kola Peninsula, RF
68*68*34mm

0.00 $ $19.67

Titanite (sphen) archived
Code: 23
Titanite (sphen)
Akhmatova mine, Ural, RF
55*25mm

0.00 $ $66.67

Titanite, Knopite archived
Code: 824
Titanite, Knopite
Afrikanda, Kola Peninsula, RF
38*31*25mm

0.00 $ $6.67

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