Andradite and Marialite Physical Properties

Andradite

Marialite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-4.102.50

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

none

Distinct on {100} and {110}

1.7 Mohs Hardness

6.5-75.5-6

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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

Andradite and Marialite Chemical Formula

While comparing Andradite 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 Andradite and Marialite chemical formula.

Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

Compare Green Gemstones

Andradite Vs Aragonite

Andradite Vs Astrophyllite

Andradite Vs Augite

Andradite and Marialite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Marialite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Marialite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 2.50 whereas that of Marialite is 2.50.