Amblygonite and Dravite Physical Properties

Amblygonite

Dravite

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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

2.98-3.103.03-3.18

1 7.18

1.5 Fracture

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

Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

1.6 Cleavage

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

{???} Indistinct

1.7 Mohs Hardness

67-7.5

2 10

1.8 Chemical Composition

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

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Amblygonite and Dravite Chemical Formula

While comparing Amblygonite and Dravite 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 Dravite 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 Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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Amblygonite and Dravite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amblygonite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amblygonite and Dravite Optical Properties during the identification of gemstone. Specific gravity of Amblygonite is 3.03-3.18 whereas that of Dravite is 3.03-3.18.