Prehnite and Diaspore Physical Properties
Tenacity
Brittle
Very brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
3.30-3.40
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Conchoidal, Brittle, Conchoidal
Cleavage
Distinct on [001]
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
6-6.5
6.5-7
Chemical Composition
Ca2Al2Si3O12(OH)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Prehnite and Diaspore Chemical Formula
While comparing Prehnite and Diaspore 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 Prehnite and Diaspore chemical formula.
- Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Prehnite and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Prehnite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prehnite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Prehnite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.