Agrellite and Faustite Physical Properties

Agrellite

Faustite

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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

2.882.9

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

1.6 Cleavage

perfect [110]

{???} Indistinct

1.7 Mohs Hardness

5.54.5

2 10

1.8 Chemical Composition

NaCa2Si4O10F

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

Agrellite and Faustite Chemical Formula

While comparing Agrellite 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 Agrellite and Faustite chemical formula.

Chemical formula of Agrellite- NaCa2Si4O10F
Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Agrellite and Faustite Specific Gravity

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