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Howlite
Howlite

Amblygonite
Amblygonite



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Howlite
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Amblygonite

Howlite and Amblygonite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.45-2.582.98-3.10
Amber
1 7.18
1.5 Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Sub-Conchoidal, Irregular/uneven, Sub-Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
None
[100] Perfect, [110] Good, [011] Distinct
1.7 Mohs Hardness
3-3.56
Amber
2 10
1.8 Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
(Li,Na)Al(PO 4)(F,OH)Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Howlite and Amblygonite Chemical Formula

While comparing Howlite 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 Howlite and Amblygonite chemical formula.

  • Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Amblygonite- (Li,Na)Al(PO 4)(F,OH)Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Howlite and Amblygonite Specific Gravity

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