Alexandrite and Hydrophane Physical Properties

Alexandrite

Hydrophane

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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

3.69-3.811.98-2.50

1 7.18

1.5 Fracture

Not Available

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

1,1 ; 3,2.

Not Available

1.7 Mohs Hardness

8.55.5-6.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Alexandrite and Hydrophane Chemical Formula

While comparing Alexandrite and Hydrophane 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 Hydrophane chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Hydrophane- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Compare Gems for Scorpio

Alexandrite Vs Gahnospinel

Alexandrite Vs Citrine

Alexandrite Vs Fluorite

Alexandrite and Hydrophane Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Hydrophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Hydrophane Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 1.98-2.50 whereas that of Hydrophane is 1.98-2.50.