Opal and Anthophyllite Physical Properties
Tenacity
BrittleWalter Schumann
Not Available
Solubility
hot salt water
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
2.9-3.5
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle
Cleavage
None
{110} Perfect, {???} Distinct, {???} Distinct
Mohs Hardness
5-6.5
5.5-6
Chemical Composition
SiO2 · nH2O
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Opal and Anthophyllite Chemical Formula
While comparing Opal and Anthophyllite 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 Opal and Anthophyllite chemical formula.
- Chemical formula of Opal- SiO2 · nH2O
- Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Opal and Anthophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Opal and Anthophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Anthophyllite Optical Properties during the identification of gemstone. Specific gravity of Opal is 2.9-3.5 whereas that of Anthophyllite is 2.9-3.5.