Home
×

Austinite
Austinite

Dravite
Dravite



ADD
Compare
X
Austinite
X
Dravite

Austinite and Dravite Physical Properties

Add ⊕
1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Easily soluble in cold dilute HCl
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.12
3.03-3.18
1.5 Fracture
Brittle, Uneven, Brittle, Uneven
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
1.6 Cleavage
Good in two directions parallel to the prism faces {110}
{???} Indistinct
1.7 Mohs Hardness
4-4.5
7-7.5
1.8 Chemical Composition
CaZn(AsO4)(OH)
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Austinite and Dravite Chemical Formula

While comparing Austinite and Dravite 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 Austinite and Dravite chemical formula.

  • Chemical formula of Austinite- CaZn(AsO4)(OH)
  • Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Austinite and Dravite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Dravite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.03-3.18 whereas that of Dravite is 3.03-3.18.