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Creedite
Creedite

Mottramite
Mottramite



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Creedite
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Mottramite

Creedite and Mottramite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

2.705.9
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Sub-Conchoidal

Cleavage

Perfect on {100}
None observed

Mohs Hardness

4.53
2 10
👆🏻

Chemical Composition

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
PbCu(VO4)(OH)

Creedite and Mottramite Chemical Formula

While comparing Creedite 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 Creedite and Mottramite chemical formula.

  • Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
  • Chemical formula of Mottramite- PbCu(VO4)(OH)

Creedite and Mottramite Specific Gravity

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