Alexandrite and Thaumasite Physical Properties

Alexandrite

Thaumasite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.69-3.811.91

1 7.18

1.5 Fracture

Not Available

Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

1,1 ; 3,2.

Indistinct

1.7 Mohs Hardness

8.53.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

Ca 6Si 2(CO 3) 2(SO 4) 2(OH) 12 · 24H 2OUlrich Henn and Claudio C.

Alexandrite and Thaumasite Chemical Formula

While comparing Alexandrite and Thaumasite 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 Thaumasite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Thaumasite- Ca 6Si 2(CO 3) 2(SO 4) 2(OH) 12 · 24H 2OUlrich Henn and Claudio C.

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Alexandrite and Thaumasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Thaumasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Thaumasite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 1.91 whereas that of Thaumasite is 1.91.