Anthophyllite and Brookite Physical Properties

Anthophyllite

Brookite

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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

2.9-3.53.87-4.14

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

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

Poor on {120}, in traces on {001}

1.7 Mohs Hardness

5.5-65.5-6

2 10

1.8 Chemical Composition

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

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Anthophyllite and Brookite Chemical Formula

While comparing Anthophyllite and Brookite 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 Brookite 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 Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Brown Gemstones

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Anthophyllite Vs Brucite

Anthophyllite Vs Brookite

Anthophyllite and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anthophyllite and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Brookite Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 3.87-4.14 whereas that of Brookite is 3.87-4.14.