Plumbogummite and Faustite Physical Properties

Plumbogummite

Faustite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.0142.9

1 7.18

1.5 Fracture

Uneven, Conchoidal

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

1.6 Cleavage

None

{???} Indistinct

1.7 Mohs Hardness

4-54.5

2 10

1.8 Chemical Composition

Not Available

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

Plumbogummite and Faustite Chemical Formula

While comparing Plumbogummite 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 Plumbogummite 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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Plumbogummite and Faustite Specific Gravity

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