Wulfenite and Grandidierite Physical Properties

Wulfenite

Grandidierite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.50-7.002.85-3.00

1 7.18

1.5 Fracture

Irregular, Brittle, Conchoidal

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

1.6 Cleavage

On {011}, distinct; on {001}, {013}, indistinct

Perfect

1.7 Mohs Hardness

37.5

2 10

1.8 Chemical Composition

PbMoO 4Walter Schumann , Gemstones of the world (2001)

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

Wulfenite and Grandidierite Chemical Formula

While comparing Wulfenite and Grandidierite 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 Wulfenite and Grandidierite chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Compare Red Gemstones

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Wulfenite and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wulfenite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wulfenite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Wulfenite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.