Riebeckite and Milarite Physical Properties

Riebeckite

Milarite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.28-3.442.52-2.60

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

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

1.6 Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

{0001} Imperfect, {1120} Imperfect

1.7 Mohs Hardness

5.0-6.05.5-6

2 10

1.8 Chemical Composition

Not Available

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

Riebeckite and Milarite Chemical Formula

While comparing Riebeckite 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 Riebeckite and Milarite chemical formula.

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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Riebeckite and Milarite Specific Gravity

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