Tugtupite and Howlite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.30-2.60
2.45-2.58
Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
{111} Imperfect
None
Mohs Hardness
5.5-6
3-3.5
Chemical Composition
Na 4AlBeSi 4O 12ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tugtupite and Howlite Chemical Formula
While comparing Tugtupite 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 Tugtupite and Howlite chemical formula.
- Chemical formula of Tugtupite- Na 4AlBeSi 4O 12ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tugtupite and Howlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tugtupite and Howlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tugtupite and Howlite Optical Properties during the identification of gemstone. Specific gravity of Tugtupite is 2.45-2.58 whereas that of Howlite is 2.45-2.58.