Grandidierite and Esperite Physical Properties

Grandidierite

Esperite

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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

2.85-3.004.28-4.42

1 7.18

1.5 Fracture

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

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

1.6 Cleavage

Perfect

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

1.7 Mohs Hardness

7.55-5.5

2 10

1.8 Chemical Composition

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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

Grandidierite and Esperite Chemical Formula

While comparing Grandidierite 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 Grandidierite and Esperite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Compare Green Gemstones

Grandidierite Vs Hydrogrossular

Grandidierite Vs Hiddenite

Grandidierite Vs Hurlbutite

Grandidierite and Esperite Specific Gravity

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