Scapolite and Siderite Physical Properties
Specific Gravity
2.58-2.74
3.83-3.89
Fracture
ConchoidalWalter Schumann, Splintery
Uneven, Conchoidal
Cleavage
{100} Distinct, {110} Distinct
Perfect on {01 1 1}
Mohs Hardness
5.5-6
3.5-4.5
Chemical Composition
Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Scapolite and Siderite Chemical Formula
While comparing Scapolite and Siderite 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 Scapolite and Siderite chemical formula.
- Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Scapolite and Siderite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Scapolite and Siderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scapolite and Siderite Optical Properties during the identification of gemstone. Specific gravity of Scapolite is 3.83-3.89 whereas that of Siderite is 3.83-3.89.