Tanzanite and Bertrandite Physical Properties

Tanzanite

Bertrandite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.352.59-2.60

1 7.18

1.5 Fracture

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Perfect {010}, imperfect {100}

{001} Perfect, {110} Distinct, {101} Distinct

1.7 Mohs Hardness

6.5-76-7

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Tanzanite and Bertrandite Chemical Formula

While comparing Tanzanite and Bertrandite 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 Tanzanite and Bertrandite chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Semi Precious Gemstones

Tanzanite Vs Alexandrite

Tanzanite Vs Amethyst

Tanzanite Vs Beryl

Tanzanite and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.