Achroite and Marialite Physical Properties

Achroite

Marialite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.90-3.40

Uneven, ConchoidalWalter Schumann

Indiscernible

7-7.5

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.

Brittle

2.50

Uneven, Conchoidal

Distinct on {100} and {110}

5.5-6

3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

Achroite and Marialite Chemical Formula

While comparing Achroite and Marialite 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 Achroite and Marialite chemical formula.

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Achroite and Marialite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Achroite and Marialite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Achroite Vs Marialite during the identification of gemstone. Specific gravity of Achroite is whereas that of Marialite is .