Kutnohorite and Phosphosiderite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.12
  
2.74-2.76
  
Fracture
Subconchoidal, Brittle, Conchoidal
  
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven
  
Cleavage
Perfect on {10 1 1}
  
{010} Perfect, {001} Distinct
  
Mohs Hardness
3-4
  
3.5-4
  
Chemical Composition
Not Available
  
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
  
Kutnohorite and Phosphosiderite Chemical Formula
While comparing Kutnohorite and Phosphosiderite 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 Kutnohorite and Phosphosiderite chemical formula.
>- Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Kutnohorite and Phosphosiderite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kutnohorite and Phosphosiderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kutnohorite and Phosphosiderite Optical Properties during the identification of gemstone. Specific gravity of Kutnohorite is 2.74-2.76 whereas that of Phosphosiderite is 2.74-2.76.