Howlite and Piemontite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.45-2.58
Not Available
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Splintery
Cleavage
None
[001] good, [100] distinct
Mohs Hardness
3-3.5
6-6.5
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available
Howlite and Piemontite Chemical Formula
While comparing Howlite and Piemontite 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 Piemontite chemical formula.
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Howlite and Piemontite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Howlite and Piemontite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Piemontite Optical Properties during the identification of gemstone. Specific gravity of Howlite is Not Available whereas that of Piemontite is Not Available.