Anthophyllite and Rock Crystal Physical Properties

Anthophyllite

Rock Crystal

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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

2.9-3.52.65

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

5.5-67

2 10

1.8 Chemical Composition

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

SiO 2Walter Schumann , Gemstones of the world (2001)

Anthophyllite and Rock Crystal Chemical Formula

While comparing Anthophyllite and Rock Crystal 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 Rock Crystal 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 Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

Compare Brown Gemstones

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Anthophyllite Vs Bronzite

Anthophyllite Vs Brucite

Anthophyllite and Rock Crystal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anthophyllite and Rock Crystal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Rock Crystal Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 2.65 whereas that of Rock Crystal is 2.65.