Amblygonite and Galena Physical Properties

Amblygonite

Galena

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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

2.98-3.106.23

1 7.18

1.5 Fracture

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

Subconchoidal, Brittle, Metallic

1.6 Cleavage

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

Cubic perfect on [001], parting on [111]

1.7 Mohs Hardness

62.5-2.75

2 10

1.8 Chemical Composition

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

PbS

Amblygonite and Galena Chemical Formula

While comparing Amblygonite and Galena 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 Galena 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 Galena- PbS

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Amblygonite and Galena Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amblygonite and Galena Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amblygonite and Galena Optical Properties during the identification of gemstone. Specific gravity of Amblygonite is 6.23 whereas that of Galena is 6.23.