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  3. Rutile

Rutile mineral - You can buy these samples

Rutile is a mineral, the most stable polymorphic variety of titanium oxide. Other polymorphic modifications with the same chemical formula: akaogyite, anatase, brookite. Rutile is found in igneous and metamorphic rocks, as well as sedimentary rocks. It is of industrial importance as titanium raw material.

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

Physical properties of Rutile

General
Category Oxide minerals
Formula
(repeating unit)		 TiO2
IMA symbol Rt
Strunz classification 4.DB.05
Crystal system Tetragonal
Crystal class Ditetragonal dipyramidal (4/mmm)
H-M symbol: (4/m 2/m 2/m)
Space group P42/mnm
Unit cell a = 4.5937 Å, c = 2.9587 Å; Z = 2
Identification
Color Brown, reddish brown, blood red, red, brownish yellow, pale yellow, yellow, pale blue, violet, rarely grass-green, grayish black; black if high in Nb–Ta
Crystal habit Acicular to Prismatic crystals, elongated and striated parallel to [001]
Twinning Common on {011}, or {031}; as contact twins with two, six, or eight individuals, cyclic, polysynthetic
Cleavage {110} good, {100} moderate, parting on {092} and {011}
Fracture Uneven to sub-conchoidal
Mohs scale hardness 6.0–6.5
Luster Adamantine to submetallic
Streak Bright red to dark red
Diaphaneity Opaque, transparent in thin fragments
Specific gravity 4.23 increasing with Nb–Ta content
Optical properties Uniaxial (+)
Refractive index nω = 2.613, nε = 2.909 (589 nm)
Birefringence 0.296 (589 nm)
Pleochroism Weak to distinct brownish red-green-yellow
Dispersion Strong
Fusibility Fusible in alkali carbonates
Solubility Insoluble in acids
Common impurities Fe, Nb, Ta
Other characteristics Strongly anisotropic
Rutile, hair-worm
Code: 49
Rutile, hair-worm
Parnuk, Subpolar Urals, RF
90*64*40mm

0.00 $ $116.67

Rutile, Chlorite, Quartz (hair-worm)
Code: 867
Rutile, Chlorite, Quartz (hair-worm)
Kunek deposit, Kazakhstan
30*20*16mm

0.00 $ $85.00

Rutile, Chlorite, Quartz (hair-worm)
Code: 868
Rutile, Chlorite, Quartz (hair-worm)
Kunek deposit, Kazakhstan
27*17*11mm

0.00 $ $58.33

Rutile
Code: 973
Rutile
Tajikistan
41*35*30mm

0.00 $ $24.00

Rutile, Chlorite, Quartz (hair-worm)
Code: 3826
Rutile, Chlorite, Quartz (hair-worm)
Kunek deposit, Kazakhstan
16*15*9mm

0.00 $ $90.00

Rutile
Code: 2405
Rutile
Kapudzhuk, Nakhichevan, Azerbaijan
46*31*21mm

0.00 $ $120.00

Rutile, Chlorite, Quartz (hair-worm) archived
Code: 869
Rutile, Chlorite, Quartz (hair-worm)
Kunek deposit, Kazakhstan
23*14*11mm

0.00 $ $58.33

Anataze, Rutile archived
Code: 1647
Anataze, Rutile
Mount Dodo, Subpolar Urals, RF
43*24*22mm

0.00 $ $32.00

Cr-Clinochlore, Rutile archived
Code: 2578
Cr-Clinochlore, Rutile
Saranovskoe deposit, Perm region, Ural, RF
48*35*16mm

0.00 $ $28.00

Cr-Clinochlore, Rutile archived
Code: 2430
Cr-Clinochlore, Rutile
Saranovskoe deposit, Perm region, Ural, RF
67*34*13mm

0.00 $ $20.00

Cr-Clinochlore, Rutile archived
Code: 2432
Cr-Clinochlore, Rutile
Saranovskoe deposit, Perm region, Ural, RF
35*30*12mm

0.00 $ $30.00

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