Phosphosiderite and Anorthite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.74-2.76
  
2.77
  
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven
  
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
{010} Perfect, {001} Distinct
  
Perfect [001] good [010] poor [110]
  
Mohs Hardness
3.5-4
  
6-6.5
  
Chemical Composition
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
  
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Phosphosiderite and Anorthite Chemical Formula
While comparing Phosphosiderite and Anorthite 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 Phosphosiderite and Anorthite chemical formula.
- Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Phosphosiderite and Anorthite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Phosphosiderite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphosiderite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Phosphosiderite is 2.77 whereas that of Anorthite is 2.77.