Rhodochrosite and Turquoise Physical Properties

Rhodochrosite

Turquoise

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.0-3.3

2.30-2.90

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

On {10 1 1} perfect; parting on {10 1 2}

Good to perfect_usually N/A

1.7 Mohs Hardness

3.5-4

5-6

1.8 Chemical Composition

MnCO₃

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

Rhodochrosite and Turquoise Chemical Formula

While comparing Rhodochrosite and Turquoise 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 Rhodochrosite and Turquoise chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O

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Rhodochrosite and Turquoise Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Turquoise Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Turquoise Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 2.30-2.90 whereas that of Turquoise is 2.30-2.90.