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Feldspar
Feldspar

Esperite
Esperite



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Feldspar
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Esperite

Feldspar and Esperite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.56-2.754.28-4.42
Amber
1 7.18
1.5 Fracture
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
1.6 Cleavage
two or three
Distinct on [010] and [100] poor on [101]
1.7 Mohs Hardness
6-6.55-5.5
Amber
2 10
1.8 Chemical Composition
Not Available
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Feldspar and Esperite Chemical Formula

While comparing Feldspar and Esperite 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 Feldspar and Esperite chemical formula.

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  • Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Feldspar and Esperite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Feldspar and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Feldspar and Esperite Optical Properties during the identification of gemstone. Specific gravity of Feldspar is 4.28-4.42 whereas that of Esperite is 4.28-4.42.