Grandidierite and Milarite Physical Properties

Grandidierite

Milarite

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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

2.85-3.002.52-2.60

1 7.18

1.5 Fracture

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

Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic

1.6 Cleavage

Perfect

{0001} Imperfect, {1120} Imperfect

1.7 Mohs Hardness

7.55.5-6

2 10

1.8 Chemical Composition

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

KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Grandidierite and Milarite Chemical Formula

While comparing Grandidierite and Milarite 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 Milarite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Grandidierite and Milarite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Grandidierite and Milarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Milarite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 2.52-2.60 whereas that of Milarite is 2.52-2.60.