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Charlesite
Charlesite

Esperite
Esperite



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Charlesite
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Esperite

Charlesite and Esperite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.794.28-4.42
1 7.18
👆🏻

Fracture

Irregular/uneven
Conchoidal

Cleavage

Perfect on {10bar10}
Distinct on [010] and [100] poor on [101]

Mohs Hardness

2.55-5.5
2 10
👆🏻

Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Charlesite and Esperite Chemical Formula

While comparing Charlesite 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 Charlesite and Esperite chemical formula.

  • Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
  • Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Charlesite and Esperite Specific Gravity

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