Verdelite and Meionite Physical Properties

Verdelite

Meionite

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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

2.90-3.402.78

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Not Available

{???} Distinct, {???} Indistinct

1.7 Mohs Hardness

7-7.55-6

2 10

1.8 Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)

Verdelite and Meionite Chemical Formula

While comparing Verdelite and Meionite 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 Verdelite and Meionite chemical formula.

Chemical formula of Verdelite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Chemical formula of Meionite- 3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)

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Verdelite and Meionite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Verdelite and Meionite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Verdelite and Meionite Optical Properties during the identification of gemstone. Specific gravity of Verdelite is 2.78 whereas that of Meionite is 2.78.