Amblygonite and Kyanite Physical Properties

Amblygonite

Kyanite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.98-3.103.53-3.65

1 7.18

1.5 Fracture

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

Splintery, Brittle, Metallic

1.6 Cleavage

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

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

64-7

2 10

1.8 Chemical Composition

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

Not Available

Amblygonite and Kyanite Chemical Formula

While comparing Amblygonite and Kyanite 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 Kyanite chemical formula.

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

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Amblygonite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amblygonite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amblygonite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Amblygonite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.