Faustite and Milk Opal Physical Properties

Faustite

Milk Opal

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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

2.91.98-2.50

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

Conchoidal

1.6 Cleavage

{???} Indistinct

Not Available

1.7 Mohs Hardness

4.55.5-6.5

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 Milk Opal Chemical Formula

While comparing Faustite and Milk Opal 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 Milk Opal 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 Milk Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Milk Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Milk Opal Optical Properties during the identification of gemstone. Specific gravity of Faustite is 1.98-2.50 whereas that of Milk Opal is 1.98-2.50.