Howlite and Lepidolite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.45-2.58
2.80-2.90
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, UnevenArthur Thomas, Gemstones (2009)
Cleavage
None
{001} perfect
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
Howlite and Lepidolite Chemical Formula
While comparing Howlite and Lepidolite 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 Lepidolite chemical formula.
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
Howlite and Lepidolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Howlite and Lepidolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Lepidolite Optical Properties during the identification of gemstone. Specific gravity of Howlite is 2.80-2.90 whereas that of Lepidolite is 2.80-2.90.