Grandidierite and Witherite Physical Properties

Grandidierite

Witherite

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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

2.85-3.004.27-4.35

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect

{010} Distinct

1.7 Mohs Hardness

7.53-3.5

2 10

1.8 Chemical Composition

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

BaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Grandidierite and Witherite Chemical Formula

While comparing Grandidierite and Witherite 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 Witherite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Witherite- BaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Grandidierite and Witherite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Grandidierite and Witherite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Witherite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 4.27-4.35 whereas that of Witherite is 4.27-4.35.