Rhodizite and Grandidierite Physical Properties

Rhodizite

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

3.34-3.442.85-3.00

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{111} Indistinct, {111} Indistinct, {111} Indistinct

Perfect

1.7 Mohs Hardness

8-8.57.5

2 10

1.8 Chemical Composition

(K,Cs)Al 4Be 4(B,Be) 12O 28Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Rhodizite and Grandidierite Chemical Formula

While comparing Rhodizite 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 Rhodizite and Grandidierite chemical formula.

Chemical formula of Rhodizite- (K,Cs)Al 4Be 4(B,Be) 12O 28Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Compare Red Gemstones

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Rhodizite and Grandidierite Specific Gravity

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