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Magnesite
Magnesite

Mottramite
Mottramite



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Magnesite
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Mottramite

Magnesite and Mottramite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Effervesces in hot HCl
Soluble

Durability

-
-

Specific Gravity

2.92-3.125.9
1 7.18
👆🏻

Fracture

Conchoidal
Sub-Conchoidal

Cleavage

[10 1 1] perfect
None observed

Mohs Hardness

3.5-4.53
2 10
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Chemical Composition

MgCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
PbCu(VO4)(OH)

Magnesite and Mottramite Chemical Formula

While comparing Magnesite 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 Magnesite and Mottramite chemical formula.

  • Chemical formula of Magnesite- MgCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Mottramite- PbCu(VO4)(OH)

Magnesite and Mottramite Specific Gravity

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