Elbaite and Milarite Physical Properties

Elbaite

Milarite

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1 Physical Properties

1.1 Tenacity

Not Available

1.3 Solubility

Not Available

1.5 Durability

Not Available

1.6 Specific Gravity

2.90-3.102.52-2.60

1 7.18

1.10 Fracture

Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

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

1.11 Cleavage

Poor/indistinct on {1120} and {1011}

{0001} Imperfect, {1120} Imperfect

1.12 Mohs Hardness

75.5-6

2 10

1.14 Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

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

Elbaite and Milarite Chemical Formula

While comparing Elbaite 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 Elbaite and Milarite chemical formula.

Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
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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Elbaite and Milarite Specific Gravity

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