Dravite and Calcite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.03-3.18
2.67-2.73
Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
{???} Indistinct
Perfect on [10 1 1] three directions with angle of 74° 55
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
CaCO 3Ulrich Henn and Claudio C.
Dravite and Calcite Chemical Formula
While comparing Dravite and Calcite 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 Calcite 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 Calcite- CaCO 3Ulrich Henn and Claudio C.
Dravite and Calcite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dravite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.