Alexandrite and Stichtite Physical Properties

Alexandrite

Stichtite

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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

3.69-3.812.11-2.20

1 7.18

1.5 Fracture

Not Available

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

1,1 ; 3,2.

Perfect on {0001}

1.7 Mohs Hardness

8.5Not Available

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Alexandrite and Stichtite Chemical Formula

While comparing Alexandrite and Stichtite 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 Stichtite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Stichtite- Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Alexandrite and Stichtite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Stichtite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Stichtite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.11-2.20 whereas that of Stichtite is 2.11-2.20.