Rossmanite and Marialite Physical Properties

Rossmanite

Marialite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

32.50

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

None

Distinct on {100} and {110}

1.7 Mohs Hardness

Not Available5.5-6

2 10

1.8 Chemical Composition

◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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

Rossmanite and Marialite Chemical Formula

While comparing Rossmanite 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 Rossmanite and Marialite chemical formula.

Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

Compare Gems Found in America

Rossmanite Vs Serandite

Rossmanite Vs Scolecite

Rossmanite Vs Serpentine

Rossmanite and Marialite Specific Gravity

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