Alexandrite and Anthophyllite Physical Properties

Alexandrite

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

3.69-3.81

2.9-3.5

1.5 Fracture

Not Available

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

1,1 ; 3,2.

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

1.7 Mohs Hardness

8.5

5.5-6

1.8 Chemical Composition

BeAl ₂ O ₄

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

Alexandrite and Anthophyllite Chemical Formula

While comparing Alexandrite 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 Alexandrite and Anthophyllite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Gems for Scorpio

Alexandrite Vs Fluorite

Alexandrite Vs Gahnospinel

Alexandrite Vs Citrine

Alexandrite and Anthophyllite Specific Gravity

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