Tanzanite and Montebrasite Physical Properties

Tanzanite

Montebrasite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.35

2.98-3.10

1.5 Fracture

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

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

1.6 Cleavage

Perfect {010}, imperfect {100}

{100} Perfect, {110} Good, {011} Distinct

1.7 Mohs Hardness

6.5-7

5.5-6

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

Tanzanite and Montebrasite Chemical Formula

While comparing Tanzanite and Montebrasite 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 Montebrasite chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

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Tanzanite and Montebrasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Montebrasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Montebrasite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.98-3.10 whereas that of Montebrasite is 2.98-3.10.