Siderite and Ludlamite Physical Properties
Specific Gravity
3.83-3.89
3.1-3.2
Fracture
Uneven, Conchoidal
-
Cleavage
Perfect on {01 1 1}
Vitreous, pearly on cleavage
Mohs Hardness
3.5-4.5
3-4
Chemical Composition
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Siderite and Ludlamite Chemical Formula
While comparing Siderite and Ludlamite 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 Siderite and Ludlamite chemical formula.
- Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Siderite and Ludlamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Siderite and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Siderite and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Siderite is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.