Howlite and Fluorite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
slightly water soluble and in hot hydrochloric acid
Durability
Not Available
Not Available
Specific Gravity
2.45-2.58
3.00-3.25
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
None
Octahedral, perfect on {111}, parting on {011}
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaF2
Howlite and Fluorite Chemical Formula
While comparing Howlite and Fluorite 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 Fluorite chemical formula.
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Fluorite- CaF2
Howlite and Fluorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Howlite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Howlite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.