Villiaumite and Alexandrite Physical Properties

Villiaumite

Alexandrite

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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

2.793.69-3.81

1 7.18

1.5 Fracture

Brittle, Metallic

Not Available

1.6 Cleavage

{100} Perfect, {010} Perfect, {001} Perfect

1,1 ; 3,2.

1.7 Mohs Hardness

28.5

2 10

1.8 Chemical Composition

NaFUlrich Henn and Claudio C.

BeAl ₂ O ₄

Villiaumite and Alexandrite Chemical Formula

While comparing Villiaumite and Alexandrite 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 Villiaumite and Alexandrite chemical formula.

Chemical formula of Villiaumite- NaFUlrich Henn and Claudio C.
Chemical formula of Alexandrite- BeAl ₂ O ₄

Compare Gems Found in America

Villiaumite Vs Zincite

Villiaumite Vs Witherite

Villiaumite Vs Xonotlite

Villiaumite and Alexandrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Villiaumite and Alexandrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Villiaumite and Alexandrite Optical Properties during the identification of gemstone. Specific gravity of Villiaumite is 3.69-3.81 whereas that of Alexandrite is 3.69-3.81.