Rosasite and Faustite Physical Properties

Rosasite

Faustite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in cold

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4-4.22.9

1 7.18

1.5 Fracture

Splintery

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Perfect on {100} and {010}

{???} Indistinct

1.7 Mohs Hardness

44.5

2 10

1.8 Chemical Composition

Not Available

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

Rosasite and Faustite Chemical Formula

While comparing Rosasite and Faustite 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 Rosasite and Faustite 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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Rosasite and Faustite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rosasite and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rosasite and Faustite Optical Properties during the identification of gemstone. Specific gravity of Rosasite is 2.9 whereas that of Faustite is 2.9.