Blue John and Phosphosiderite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.00-3.25
2.74-2.76
Fracture
Not Available
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven
Cleavage
Not Available
{010} Perfect, {001} Distinct
Mohs Hardness
Not Available
3.5-4
Chemical Composition
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Blue John and Phosphosiderite Chemical Formula
While comparing Blue John 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 Blue John and Phosphosiderite chemical formula.
- Chemical formula of Blue John- CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Blue John and Phosphosiderite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Blue John and Phosphosiderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Phosphosiderite Optical Properties during the identification of gemstone. Specific gravity of Blue John is 2.74-2.76 whereas that of Phosphosiderite is 2.74-2.76.