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  3. Rosasite

Collectible minerals - full range in stock "Rosasite"

Rosasite is a rare secondary mineral of copper and zinc. It is formed in the zones of oxidation.

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

Physical properties of Rosasite

General
Category Carbonate mineral
Formula
(repeating unit)		 (Cu,Zn)2(CO3)(OH)2
IMA symbol Rss
Strunz classification 5.BA.10
Crystal system Monoclinic
Crystal class Prismatic (2/m)
(same H-M symbol)
Space group P21/a
Unit cell a = 12.873(3) Å, b = 9.354(3) Å
c = 3.156(2) Å; β = 110.36(3)°; Z = 4
Identification
Color Blue, bluish green, green
Crystal habit Acicular crystals as radiating fibrous clusters; botryoidal; mammillary; encrustations
Twinning On {100}
Cleavage Perfect on {100} and {010}
Fracture Splintery, fibrous
Tenacity Brittle
Mohs scale hardness 4
Luster Silky, vitreous to dull
Streak Light blue or green
Specific gravity 4-4.2
Optical properties Biaxial (-)
Refractive index nα = 1.672 - 1.688 nβ = 1.796 - 1.830 nγ = 1.811 - 1.831
Birefringence δ = 0.139 - 0.143
Pleochroism Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
2V angle Measured: 33°
Solubility Effervesces in cold, dilute hydrochloric acid
Major varieties
Nickeloan rosasite Dark green

Rosasite
Code: 1526
Rosasite
Chagyrka river, Altai, RF
24*23*16mm

0.00 $ $31.67

Rosasite
Code: 1302
Rosasite
Chagyrka river, Altai, RF
47*24*29mm

0.00 $ $64.33

Rosasite archived
Code: 3275
Rosasite
Chagyrka river, Altai, RF
39*32*21mm

0.00 $ $35.00

Rosasite archived
Code: 1525
Rosasite
Chagyrka river, Altai, RF
44*30*26mm

0.00 $ $56.67

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