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Polyhalite
Polyhalite

Amblygonite
Amblygonite



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Polyhalite
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Polyhalite and Amblygonite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.78
2.98-3.10
1.5 Fracture
Conchoidal, Brittle
Sub-Conchoidal, Irregular/uneven, Sub-Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Perfect on {10 1 }; parting on {010}
[100] Perfect, [110] Good, [011] Distinct
1.7 Mohs Hardness
3.5
6
1.8 Chemical Composition
Not Available
(Li,Na)Al(PO 4)(F,OH)Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Polyhalite and Amblygonite Chemical Formula

While comparing Polyhalite and Amblygonite 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 Polyhalite and Amblygonite chemical formula.

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  • Chemical formula of Amblygonite- (Li,Na)Al(PO 4)(F,OH)Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Polyhalite and Amblygonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Amblygonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Amblygonite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 2.98-3.10 whereas that of Amblygonite is 2.98-3.10.