Shigaite and Anthophyllite Physical Properties

Shigaite

Anthophyllite

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1 Physical Properties

1.1 Tenacity

Moderately ﬂexible

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.322.9-3.5

1 7.18

1.5 Fracture

Flexible Flexible fragments.

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

Perfect on {0001}

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

1.7 Mohs Hardness

25.5-6

2 10

1.8 Chemical Composition

Not Available

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

Shigaite and Anthophyllite Chemical Formula

While comparing Shigaite and Anthophyllite 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 Shigaite and Anthophyllite chemical formula.

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

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Shigaite and Anthophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Shigaite and Anthophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shigaite and Anthophyllite Optical Properties during the identification of gemstone. Specific gravity of Shigaite is 2.9-3.5 whereas that of Anthophyllite is 2.9-3.5.