Tinzenite and Alexandrite Physical Properties

Tinzenite

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

3.355-3.4333.69-3.81

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

Not Available

1.6 Cleavage

{???} Good, {???} Good

1,1 ; 3,2.

1.7 Mohs Hardness

Not Available8.5

2 10

1.8 Chemical Composition

(Ca,Mn2+ ,Fe2+ ) 3Al 2BSi 4O 15(OH)Anthony et al , Handbook of mineralogy (2001)

BeAl ₂ O ₄

Tinzenite and Alexandrite Chemical Formula

While comparing Tinzenite 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 Tinzenite and Alexandrite chemical formula.

Chemical formula of Tinzenite- (Ca,Mn2+ ,Fe2+ ) 3Al 2BSi 4O 15(OH)Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Alexandrite- BeAl ₂ O ₄

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Tinzenite and Alexandrite Specific Gravity

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