Anthophyllite and Apophyllite KF Physical Properties

Anthophyllite

Apophyllite KF

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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

2.9-3.5

2.33-2.37

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

{110} Perfect, {???} Distinct, {???} Distinct

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

5.5-6

4.5-5

1.8 Chemical Composition

(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Anthophyllite and Apophyllite KF Chemical Formula

While comparing Anthophyllite and Apophyllite KF 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 Anthophyllite and Apophyllite KF chemical formula.

Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Anthophyllite and Apophyllite KF Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anthophyllite and Apophyllite KF Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Apophyllite KF Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 2.33-2.37 whereas that of Apophyllite KF is 2.33-2.37.