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Riebeckite
Riebeckite

Zoisite
Zoisite



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Riebeckite
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Zoisite

Riebeckite and Zoisite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.28-3.443.20-3.50
1 7.18
👆🏻

Fracture

Uneven, Splintery
Uneven, Conchoidal, Even

Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Perfect {010} imperfect {100}

Mohs Hardness

5.0-6.06-7
2 10
👆🏻

Chemical Composition

Na2Fe2+3Fe3+2Si8O22(OH)2
Ca2Al3(SiO4)3(OH)

Riebeckite and Zoisite Chemical Formula

While comparing Riebeckite and Zoisite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Riebeckite and Zoisite chemical formula.

  • Chemical formula of Riebeckite- Na2Fe2+3Fe3+2Si8O22(OH)2
  • Chemical formula of Zoisite- Ca2Al3(SiO4)3(OH)

Riebeckite and Zoisite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Riebeckite and Zoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Riebeckite and Zoisite Optical Properties during the identification of gemstone. Specific gravity of Riebeckite is 3.20-3.50 whereas that of Zoisite is 3.20-3.50.