Marialite and Annabergite Physical Properties

Marialite

Annabergite

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1 Physical Properties

1.1 Tenacity

Brittle

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.503.07

1 7.18

1.5 Fracture

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

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Distinct on {100} and {110}

Perfect on {010}, indistinct on {100} and {102}

1.7 Mohs Hardness

5.5-62

2 10

1.8 Chemical Composition

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

Ni3(AsO4)2•8(H2O)

Marialite and Annabergite Chemical Formula

While comparing Marialite and Annabergite 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 Marialite and Annabergite chemical formula.

Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)

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Marialite and Annabergite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Marialite and Annabergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marialite and Annabergite Optical Properties during the identification of gemstone. Specific gravity of Marialite is 3.07 whereas that of Annabergite is 3.07.