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Sellaite
Sellaite

Hurlbutite
Hurlbutite



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Sellaite
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Hurlbutite

Sellaite and Hurlbutite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.14-3.16
Conchoidal
Perfect on {010} and {110}
5-5.5
MgF 2Ulrich Henn and Claudio C.
 
-
-
-
2.90
Conchoidal
None
6
CaBe 2(PO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Sellaite and Hurlbutite Chemical Formula

While comparing Sellaite and Hurlbutite 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 Sellaite and Hurlbutite chemical formula.

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Sellaite and Hurlbutite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sellaite and Hurlbutite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sellaite Vs Hurlbutite during the identification of gemstone. Specific gravity of Sellaite is whereas that of Hurlbutite is .