Gahnite and Phosphophyllite Physical Properties
Specific Gravity
4.00-4.62
3.07-3.13
Fracture
Conchoidal, Uneven
Conchoidal, Uneven
Cleavage
Indistinct parting on [111]
{100} Perfect, {010} Distinct, {102} Distinct
Mohs Hardness
7.5-8
3-3.5
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Gahnite and Phosphophyllite Chemical Formula
While comparing Gahnite and Phosphophyllite 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 Gahnite and Phosphophyllite chemical formula.
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Phosphophyllite- Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Gahnite and Phosphophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnite and Phosphophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Phosphophyllite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 3.07-3.13 whereas that of Phosphophyllite is 3.07-3.13.