Milarite and Spinel Physical Properties

Milarite

Spinel

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

2.52-2.603.64-3.66

1 7.18

1.5 Fracture

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

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{0001} Imperfect, {1120} Imperfect

None, but may exhibit slight parting

1.7 Mohs Hardness

5.5-68

2 10

1.8 Chemical Composition

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

MgAl₂O₄

Milarite and Spinel Chemical Formula

While comparing Milarite and Spinel 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 Milarite and Spinel chemical formula.

Chemical formula of Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Spinel- MgAl₂O₄

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Milarite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Milarite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Milarite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Milarite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.