Anthophyllite and Willemite Physical Properties

Anthophyllite

Willemite

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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

2.9-3.53.89-4.18

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

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

{0001}, {11 2 0} imperfect

1.7 Mohs Hardness

5.5-65.5

2 10

1.8 Chemical Composition

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

Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Anthophyllite and Willemite Chemical Formula

While comparing Anthophyllite and Willemite 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 Willemite 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 Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Anthophyllite and Willemite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anthophyllite and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Willemite Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 3.89-4.18 whereas that of Willemite is 3.89-4.18.