Phosphophyllite and Austinite Physical Properties
Solubility
-
Easily soluble in cold dilute HCl
Specific Gravity
3.07-3.13
4.12
Fracture
Conchoidal, Uneven
Uneven
Cleavage
{100} Perfect, {010} Distinct, {102} Distinct
Good in two directions parallel to the prism faces {110}
Mohs Hardness
3-3.5
4-4.5
Chemical Composition
Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaZn(AsO4)(OH)
Phosphophyllite and Austinite Chemical Formula
While comparing Phosphophyllite and Austinite 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 Phosphophyllite and Austinite chemical formula.
- Chemical formula of Phosphophyllite- Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Austinite- CaZn(AsO4)(OH)
Phosphophyllite and Austinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Phosphophyllite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphophyllite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Phosphophyllite is 4.12 whereas that of Austinite is 4.12.