Phosphosiderite and Hardystonite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.74-2.76
  
3.396-3.443
  
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven
  
Brittle, Metallic
  
Cleavage
{010} Perfect, {001} Distinct
  
[001] good, [100] and [110] fair
  
Mohs Hardness
3.5-4
  
3-4
  
Chemical Composition
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
  
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
  
Phosphosiderite and Hardystonite Chemical Formula
While comparing Phosphosiderite and Hardystonite 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 Hardystonite chemical formula.
- Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Phosphosiderite and Hardystonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Phosphosiderite and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphosiderite and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Phosphosiderite is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.