Poudretteite and Phosphosiderite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.51-2.53
2.74-2.76
Fracture
Conchoidal, Splintery
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven
Cleavage
None
{010} Perfect, {001} Distinct
Chemical Composition
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Poudretteite and Phosphosiderite Chemical Formula
While comparing Poudretteite 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 Poudretteite and Phosphosiderite chemical formula.
- Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Poudretteite and Phosphosiderite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Poudretteite and Phosphosiderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poudretteite and Phosphosiderite Optical Properties during the identification of gemstone. Specific gravity of Poudretteite is 2.74-2.76 whereas that of Phosphosiderite is 2.74-2.76.