Dravite and Hanksite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Readily soluble in water
Durability
Not Available
Not Available
Specific Gravity
3.03-3.18
2.562
Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Conchoidal, Brittle
Cleavage
{???} Indistinct
Good on {0001}
Mohs Hardness
7-7.5
3-3.5
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
KNa22(SO4)9(CO3)2Cl
Dravite and Hanksite Chemical Formula
While comparing Dravite and Hanksite 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 Hanksite 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 Hanksite- KNa22(SO4)9(CO3)2Cl
Dravite and Hanksite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dravite and Hanksite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Hanksite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.562 whereas that of Hanksite is 2.562.