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  3. Azurite

Polished stones - full range in stock "Azurite"

Azurite is a secondary copper mineral. It is a search sign of copper deposits, while it is itself used as copper ore. Known since ancient times. Its name is translated from Arabic as "blue". Served as a blue pigment for the manufacture of paints. Due to its rich blue color, azurite is one of the most beloved collectible minerals.

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

Physical properties of Azurite

General
Category Carbonate mineral
Formula
(repeating unit)		 Cu3(CO3)2(OH)2
IMA symbol Azu
Strunz classification 5.BA.05
Crystal system Monoclinic
Crystal class Prismatic (2/m)
(same H-M symbol)
Space group P21/c
Unit cell a = 5.01 Å, b = 5.85 Å
c = 10.35 Å; β = 92.43°; Z = 2
Identification
Formula mass 344.67 g/mol
Color Azure-blue, dark to pale blue; pale blue in transmitted light
Crystal habit Massive, prismatic, stalactitic, tabular
Twinning Rare, twin planes {101}, {102} or {001}
Cleavage Perfect on {011}, fair on {100}, poor on {110}
Fracture Conchoidal
Tenacity brittle
Mohs scale hardness 3.5 to 4
Luster Vitreous
Streak Light blue
Diaphaneity Transparent to translucent
Specific gravity 3.773 (measured), 3.78 (calculated)
Optical properties Biaxial (+)
Refractive index nα = 1.730 nβ = 1.758 nγ = 1.838
Birefringence δ = 0.108
Pleochroism Visible shades of blue
2V angle Measured: 68°, calculated: 64°
Dispersion relatively weak
Azurite, Malachite
Code: 4425
Azurite, Malachite
Stepnoe, Altai, RF
51*42*30mm

0.00 $ $15.00

Azurite, Malachite
Code: 4427
Azurite, Malachite
Stepnoe, Altai, RF
73*66*25mm

0.00 $ $15.00

Azurite, Malachite
Code: 4428
Azurite, Malachite
Stepnoe, Altai, RF
80*36*21mm

0.00 $ $10.00

Azurite, Malachite
Code: 3894
Azurite, Malachite
Stepnoe, Altai, RF
43*39*9mm

0.00 $ $9.67

Azurite, Malachite
Code: 3377
Azurite, Malachite
Stepnoe, Altai, RF
65*37*18mm

0.00 $ $40.00

Azurite
Code: 3294
Azurite
Kamenushinsky deposit, Kemerovo region, Southern Siberia, RF
32*30*12mm

0.00 $ $32.67

Azurite
Code: 2648
Azurite
Kamenushinsky deposit, Kemerovo region, Southern Siberia, RF
43*24*21mm

0.00 $ $32.67

Azurite, Malachite
Code: 2602
Azurite, Malachite
Stepnoe, Altai, RF
96*58*28mm

0.00 $ $29.95

Azurite
Code: 1241
Azurite
Stepnoe, Altai, RF
78*31*15mm

0.00 $ $20.00

Azurite, Malachite archived
Code: 4426
Azurite, Malachite
Stepnoe, Altai, RF
42*40*24mm

0.00 $ $15.00

Zarinite archived
Code: 4153
Zarinite
Kamenushinsky deposit, Kemerovo region, Southern Siberia, RF
55*41*37mm

0.00 $ $60.00

Zarinite archived
Code: 4154
Zarinite
Kamenushinsky deposit, Kemerovo region, Southern Siberia, RF
74*39*30mm

0.00 $ $33.33

Zarinite archived
Code: 4155
Zarinite
Kamenushinsky deposit, Kemerovo region, Southern Siberia, RF
49*26*19mm

0.00 $ $40.00

Azurite archived
Code: 3818
Azurite
Kamenushinsky deposit, Kemerovo region, South Siberia, RF
37*22*19mm

0.00 $ $32.67

Azurite, Malachite archived
Code: 3295
Azurite, Malachite
Kamenushinsky deposit, Kemerovo region, Southern Siberia, RF
39*27*14mm

0.00 $ $35.00

Azurite, Malachite archived
Code: 2710
Azurite, Malachite
Kamenushinsky deposit, Kemerovo region, Southern Siberia, RF
38*26*14mm

0.00 $ $32.67

Azurite, Malachite archived
Code: 2649
Azurite, Malachite
Kamenushinsky deposit, Kemerovo region, Southern Siberia, RF
32*24*22mm

0.00 $ $40.00

Azurite archived
Code: 2650
Azurite
Kamenushinsky deposit, Kemerovo region, Southern Siberia, RF
32*28*11mm

0.00 $ $32.67

Azurite archived
Code: 2537
Azurite
Stepnoe, Altai, RF
72*51*16mm

0.00 $ $26.70

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