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Mottramite
Mottramite

Tanzanite
Tanzanite



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Mottramite
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Tanzanite

Mottramite and Tanzanite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
Hard

Specific Gravity

5.93.35
1 7.18
👆🏻

Fracture

Sub-Conchoidal
Uneven, Conchoidal

Cleavage

None observed
Perfect {010}, imperfect {100}

Mohs Hardness

36.5-7
2 10
👆🏻

Chemical Composition

PbCu(VO4)(OH)
Ca2Al3(SiO4)3(OH)

Mottramite and Tanzanite Chemical Formula

While comparing Mottramite and Tanzanite 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 Mottramite and Tanzanite chemical formula.

  • Chemical formula of Mottramite- PbCu(VO4)(OH)
  • Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)

Mottramite and Tanzanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 3.35 whereas that of Tanzanite is 3.35.