Labradorite and Franklinite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.69-2.72
5.05-5.22
Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
None
Mohs Hardness
6-6.5
5.5-6
Chemical Composition
(Na,Ca)1-2Si3-2O8
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Labradorite and Franklinite Chemical Formula
While comparing Labradorite and Franklinite 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 Labradorite and Franklinite chemical formula.
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
- Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Labradorite and Franklinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Labradorite and Franklinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Franklinite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 5.05-5.22 whereas that of Franklinite is 5.05-5.22.