Faustite and Tortoiseshell Physical Properties

Faustite

Tortoiseshell

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.91.25-1.35

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

Not Available

1.6 Cleavage

{???} Indistinct

Not Available

1.7 Mohs Hardness

4.5Not Available

2 10

1.8 Chemical Composition

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Not Available

Faustite and Tortoiseshell Chemical Formula

While comparing Faustite and Tortoiseshell 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 Faustite and Tortoiseshell chemical formula.

Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Faustite and Tortoiseshell Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Tortoiseshell Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Tortoiseshell Optical Properties during the identification of gemstone. Specific gravity of Faustite is 1.25-1.35 whereas that of Tortoiseshell is 1.25-1.35.