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Pezzottaite
Pezzottaite

Mottramite
Mottramite



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Pezzottaite
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Mottramite

Pezzottaite and Mottramite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

2.90-3.145.9
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Sub-Conchoidal

Cleavage

Imperfect; basal
None observed

Mohs Hardness

7.5-83
2 10
👆🏻

Chemical Composition

(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
PbCu(VO4)(OH)

Pezzottaite and Mottramite Chemical Formula

While comparing Pezzottaite and Mottramite 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 Pezzottaite and Mottramite chemical formula.

  • Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
  • Chemical formula of Mottramite- PbCu(VO4)(OH)

Pezzottaite and Mottramite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pezzottaite and Mottramite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pezzottaite and Mottramite Optical Properties during the identification of gemstone. Specific gravity of Pezzottaite is 5.9 whereas that of Mottramite is 5.9.