Alexandrite and Albite Physical Properties

Alexandrite

Albite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.69-3.812.60-2.65

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal

1.6 Cleavage

1,1 ; 3,2.

Perfect on {001}, very good on {010}, imperfect on {110}

1.7 Mohs Hardness

8.56-6.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Alexandrite and Albite Chemical Formula

While comparing Alexandrite and Albite 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 Albite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Gems for Scorpio

Alexandrite Vs Gahnospinel

Alexandrite Vs Fluorite

Alexandrite Vs Citrine

Alexandrite and Albite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Albite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.60-2.65 whereas that of Albite is 2.60-2.65.