Anthophyllite and Legrandite Physical Properties

Anthophyllite

Legrandite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.9-3.53.98-4.04

1 7.18

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Fracture

Conchoidal

Cleavage

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

Imperfect, poor one {100}

Mohs Hardness

5.5-64.5-5

2 10

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Chemical Composition

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

Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Anthophyllite and Legrandite Chemical Formula

While comparing Anthophyllite and Legrandite 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 Legrandite 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 Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Anthophyllite and Legrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anthophyllite and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.