Gibbsite and Anthophyllite Physical Properties

Gibbsite

Anthophyllite

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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

2.352.9-3.5

1 7.18

1.5 Fracture

Fibrous, Difficult, Fibrous

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

{001} Perfect

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

1.7 Mohs Hardness

2.5-35.5-6

2 10

1.8 Chemical Composition

Al(OH)3

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

Gibbsite and Anthophyllite Chemical Formula

While comparing Gibbsite 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 Gibbsite and Anthophyllite chemical formula.

Chemical formula of Gibbsite- Al(OH)3
Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Grey Gemstones

Gibbsite Vs Galena

Gibbsite Vs Vanadinite

Gibbsite Vs Pallasite

Gibbsite and Anthophyllite Specific Gravity

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