Fuchsite and Grandidierite Physical Properties

Fuchsite

Grandidierite

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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

2.77-2.88

2.85-3.00

1.5 Fracture

Uneven

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

1.6 Cleavage

Perfect basal

Perfect

1.7 Mohs Hardness

2.5

7.5

1.8 Chemical Composition

K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

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

Fuchsite and Grandidierite Chemical Formula

While comparing Fuchsite 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 Fuchsite and Grandidierite chemical formula.

Chemical formula of Fuchsite- K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Compare Green Gemstones

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Fuchsite Vs Grossular

Fuchsite and Grandidierite Specific Gravity

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