Faustite and Periclase Physical Properties

Faustite

Periclase

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.93.7-3.9

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

Conchoidal, Brittle

1.6 Cleavage

{???} Indistinct

{001} perfect; {111} imperfect, may exhibit parting on , {011}

1.7 Mohs Hardness

4.55.5-6

2 10

1.8 Chemical Composition

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

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Faustite and Periclase Chemical Formula

While comparing Faustite and Periclase 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 Periclase chemical formula.

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

Compare Green Gemstones

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Faustite and Periclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Periclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Periclase Optical Properties during the identification of gemstone. Specific gravity of Faustite is 3.7-3.9 whereas that of Periclase is 3.7-3.9.