Microcline and Howlite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.63
2.45-2.58
Fracture
Uneven, Uneven, Gems
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
{001} Perfect, {010} Good
None
Mohs Hardness
6-6.5
3-3.5
Chemical Composition
KAlSi 3O 8Arthur Thomas , Gemstones (2009)
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Microcline and Howlite Chemical Formula
While comparing Microcline 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 Microcline and Howlite chemical formula.
- Chemical formula of Microcline- KAlSi 3O 8Arthur Thomas , Gemstones (2009)
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Microcline and Howlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Microcline and Howlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Microcline and Howlite Optical Properties during the identification of gemstone. Specific gravity of Microcline is 2.45-2.58 whereas that of Howlite is 2.45-2.58.