Grandidierite and Siderite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.00
3.83-3.89
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Uneven, Conchoidal, UnevenArthur Thomas, Brittle
Cleavage
Perfect
Perfect on {01 1 1}
Mohs Hardness
7.5
3.5-4.5
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Grandidierite and Siderite Chemical Formula
While comparing Grandidierite 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 Grandidierite and Siderite chemical formula.
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
- Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Grandidierite and Siderite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Grandidierite and Siderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Siderite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 3.83-3.89 whereas that of Siderite is 3.83-3.89.