Phosphosiderite and Nepheline Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.74-2.76
  
2.55-2.65
  
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven
  
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
{010} Perfect, {001} Distinct
  
[1010] Poor
  
Mohs Hardness
3.5-4
  
5-6
  
Chemical Composition
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
  
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
  
Phosphosiderite and Nepheline Chemical Formula
While comparing Phosphosiderite and Nepheline 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 Nepheline chemical formula.
- Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Phosphosiderite and Nepheline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Phosphosiderite and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphosiderite and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Phosphosiderite is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.