Phosphosiderite and Williamsite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.74-2.76
  
2.51-2.63
  
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven
  
Conchoidal, Conchoidal, Handbook of mineralogy (2001)
  
Cleavage
{010} Perfect, {001} Distinct
  
Not Available
  
Mohs Hardness
3.5-4
  
4
  
Chemical Composition
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
  
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
  
Phosphosiderite and Williamsite Chemical Formula
While comparing Phosphosiderite and Williamsite 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 Williamsite chemical formula.
- Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Williamsite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Phosphosiderite and Williamsite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Phosphosiderite and Williamsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphosiderite and Williamsite Optical Properties during the identification of gemstone. Specific gravity of Phosphosiderite is 2.51-2.63 whereas that of Williamsite is 2.51-2.63.