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Andesine
Andesine

Mottramite
Mottramite



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Andesine
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Mottramite

Andesine and Mottramite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

2.65-2.695.9
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Sub-Conchoidal

Cleavage

Perfect on {001}, good on {010}
None observed

Mohs Hardness

6-6.53
2 10
👆🏻

Chemical Composition

(Na,Ca)Al1-2Si3-2O8
PbCu(VO4)(OH)

Andesine and Mottramite Chemical Formula

While comparing Andesine 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 Andesine and Mottramite chemical formula.

  • Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
  • Chemical formula of Mottramite- PbCu(VO4)(OH)

Andesine and Mottramite Specific Gravity

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