Austinite and Gedrite Physical Properties
Solubility
Easily soluble in cold dilute HCl
-
Specific Gravity
4.12
3.15-3.259
Cleavage
Good in two directions parallel to the prism faces {110}
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
4-4.5
5.5-6
Chemical Composition
CaZn(AsO4)(OH)
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Austinite and Gedrite Chemical Formula
While comparing Austinite and Gedrite 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 Austinite and Gedrite chemical formula.
- Chemical formula of Austinite- CaZn(AsO4)(OH)
- Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Austinite and Gedrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Austinite and Gedrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Gedrite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.15-3.259 whereas that of Gedrite is 3.15-3.259.