Dravite and Hauyne Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Gelatinises in acids
Durability
Not Available
Not Available
Specific Gravity
3.03-3.18
2.4-2.5
Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Conchoidal, Brittle
Cleavage
{???} Indistinct
Distinct on {110}
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Dravite and Hauyne Chemical Formula
While comparing Dravite and Hauyne 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 Dravite and Hauyne chemical formula.
- Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Hauyne- (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Dravite and Hauyne Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dravite and Hauyne Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Hauyne Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.4-2.5 whereas that of Hauyne is 2.4-2.5.