Jacobsite and Turquoise Physical Properties

Jacobsite

Turquoise

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.76-5.032.30-2.90

1 7.18

1.5 Fracture

Conchoidal, Brittle

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

None

Good to perfect_usually N/A

1.7 Mohs Hardness

5.5-6.55-6

2 10

1.8 Chemical Composition

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

Jacobsite and Turquoise Chemical Formula

While comparing Jacobsite 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 Jacobsite and Turquoise chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O

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Jacobsite and Turquoise Specific Gravity

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