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Diameter, mm (1mm - 0,039inch)
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  2. Collectible minerals
  3. Ankerite

Collectible minerals - full range in stock "Ankerite"

Ankerite is a mineral belonging to the dolomite group. The extreme member of the isomorphic series of dolomite-ankerite. Found in hydrothermal deposits. The crystals have a lentil-like shape. Also found in solid masses. Named after M.Y. Anker - Austrian mineralogist.

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

Physical properties of Ankerite

General
Category Carbonate mineral
Formula
(repeating unit)		 Ca(Fe,Mg,Mn)(CO3)2
IMA symbol Ank
Strunz classification 5.AB.10
Crystal system Trigonal
Crystal class Rhombohedral (3)
H-M symbol: (3)
Space group R3
Unit cell a = 4.8312(2)
c = 16.1663(3) [Å]; Z = 3
Identification
Color Brown, yellow, white
Crystal habit Chrystals rhombohedral with curved faces; columnar, stalactitic, granular, massive
Twinning Simple t {0001}, {1010}. {1120}
Cleavage Perfect on {1011}
Fracture Subconchoidal
Tenacity Brittle
Mohs scale hardness 3.5–4
Luster Vitreous to pearly
Streak White
Diaphaneity Translucent to transparent
Specific gravity 2.93–3.10
Optical properties Uniaxial (-)
Refractive index nω = 1.690 - 1.750 nε = 1.510 - 1.548
Birefringence δ = 0.180 - 0.202
Dispersion Strong
Calcite whith Iridescent, Ankerite
Code: 4476
Calcite whith Iridescent, Ankerite
Murzinskoye (Au) field, Altai, RF
51*35*27mm

0.00 $ $50.00

Calcite and Ankerite whith Iridescent
Code: 2889
Calcite and Ankerite whith Iridescent
Murzinskoye (Au) field, Altai, RF
56*50*39mm

0.00 $ $53.33

Ankerite
Code: 2890
Ankerite
Murzinskoye (Au) field, Altai, RF
98*60*45mm

0.00 $ $226.67

Ankerite, Chalcopyrite, Quartz
Code: 2892
Ankerite, Chalcopyrite, Quartz
Murzinskoye (Au) field, Altai, RF
34*23*24mm

0.00 $ $20.00

Ankerite
Code: 1083
Ankerite
Murzinskoye (Au) field, Altai, RF
56*40*33mm

0.00 $ $32.00

Ankerite, Rock Crystal, Chalcopyrite
Code: 1298
Ankerite, Rock Crystal, Chalcopyrite
Murzinskoye (Au) field, Altai, RF
126*55*45mm

0.00 $ $225.00

Ankerite, Sphalerite
Code: 1174
Ankerite, Sphalerite
Murzinskoye (Au) field, Altai, RF
51*41*30mm

0.00 $ $29.00

Calcite Iridescent, Ankerite, Chalcopyrite, Rock Crystal
Code: 1289
Calcite Iridescent, Ankerite, Chalcopyrite, Rock Crystal
Murzinskoye (Au) field, Altai, RF
47*39*38mm

0.00 $ $66.00

Ankerite, Calcite
Code: 1300
Ankerite, Calcite
Murzinskoye (Au) field, Altai, RF
40*35*/25mm

0.00 $ $39.00

Ankerite, Calcite
Code: 1301
Ankerite, Calcite
Murzinskoye (Au) field, Altai, RF
38*26*18mm

0.00 $ $39.00

Ankerite and Calcite whith Iridescent archived
Code: 2888
Ankerite and Calcite whith Iridescent
Murzinskoye (Au) field, Altai, RF
40*31*22mm

0.00 $ $40.00

Ankerite archived
Code: 2891
Ankerite
Murzinskoye (Au) field, Altai, RF
32*24*24mm

0.00 $ $23.33

Ankerite, Rock Crystal archived
Code: 2893
Ankerite, Rock Crystal
Murzinskoye (Au) field, Altai, RF
27*17*12mm

0.00 $ $25.00

Ankerite archived
Code: 2558
Ankerite
Murzinskoye (Au) field, Altai, RF
43*24*16mm

0.00 $ $29.67

Ankerite archived
Code: 1176
Ankerite
Murzinskoye (Au) field, Altai, RF
45*34*23mm

0.00 $ $28.50

Calcite Iridescent , Ankerite, Chalcopyrite, Rock Crystal archived
Code: 1290
Calcite Iridescent , Ankerite, Chalcopyrite, Rock Crystal
Murzinskoye (Au) field, Altai, RF
37*22*24mm

0.00 $ $28.00

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