Amblygonite and Purpurite Physical Properties

Amblygonite

Purpurite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.98-3.103.2-3.4

1 7.18

1.5 Fracture

Sub-Conchoidal, Irregular/uneven, Sub-Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

[100] Perfect, [110] Good, [011] Distinct

[100] [001] perfect

1.7 Mohs Hardness

64-4.5

2 10

1.8 Chemical Composition

(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

Amblygonite and Purpurite Chemical Formula

While comparing Amblygonite and Purpurite 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 Amblygonite and Purpurite chemical formula.

Chemical formula of Amblygonite- (Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

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Amblygonite and Purpurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amblygonite and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amblygonite and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Amblygonite is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.