Nickeline and Howlite Physical Properties
Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
Not Available
2.45-2.58
Fracture
Conchoidal, Uneven
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
{1010} Imperfect, {0001} Imperfect
None
Mohs Hardness
5-5.5
3-3.5
Chemical Composition
Not Available
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Nickeline and Howlite Chemical Formula
While comparing Nickeline and Howlite 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 Nickeline and Howlite chemical formula.
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- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Nickeline and Howlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nickeline and Howlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nickeline and Howlite Optical Properties during the identification of gemstone. Specific gravity of Nickeline is 2.45-2.58 whereas that of Howlite is 2.45-2.58.
