Grandidierite and Catapleiite Physical Properties

Grandidierite

Catapleiite

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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

2.85-3.002.72

1 7.18

2.5 Fracture

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

Brittle, Metallic, Brittle, Metallic

2.6 Cleavage

Perfect

{110} Perfect, {010} Perfect

2.7 Mohs Hardness

7.55-6

2 10

1.16 Chemical Composition

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

Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Grandidierite and Catapleiite Chemical Formula

While comparing Grandidierite and Catapleiite 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 Catapleiite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Green Gemstones

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Grandidierite and Catapleiite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Grandidierite and Catapleiite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Catapleiite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 2.72 whereas that of Catapleiite is 2.72.