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Howlite
Howlite

Sheen Obsidian
Sheen Obsidian



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Howlite
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Sheen Obsidian

Howlite and Sheen Obsidian 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
2.45-2.58
2.33-2.50
1.5 Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
None
Not Available
1.7 Mohs Hardness
3-3.5
5-5.5
1.8 Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Not Available

Howlite and Sheen Obsidian Chemical Formula

While comparing Howlite and Sheen Obsidian 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 Sheen Obsidian chemical formula.

  • Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
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Howlite and Sheen Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Sheen Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Sheen Obsidian Optical Properties during the identification of gemstone. Specific gravity of Howlite is 2.33-2.50 whereas that of Sheen Obsidian is 2.33-2.50.