Esperite and Paraiba Physical Properties

Esperite

Paraiba

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.28-4.423.04-3.13

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic

Not Available

1.6 Cleavage

Distinct on [010] and [100] poor on [101]

Not Available

1.7 Mohs Hardness

5-5.57-7.5

2 10

1.8 Chemical Composition

PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Not Available

Esperite and Paraiba Chemical Formula

While comparing Esperite and Paraiba 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 Esperite and Paraiba chemical formula.

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

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Esperite Vs Hardystonite

Esperite and Paraiba Specific Gravity

Another important criteria for qualitative analysis of gemstones is Esperite and Paraiba Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Paraiba Optical Properties during the identification of gemstone. Specific gravity of Esperite is 3.04-3.13 whereas that of Paraiba is 3.04-3.13.