Schorl and Rosasite Physical Properties

Schorl

Rosasite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Effervesces in cold

1.3 Durability

Not Available

1.4 Specific Gravity

3.18-3.224-4.2

1 7.18

1.5 Fracture

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

Splintery

1.6 Cleavage

{1011} Indistinct

Perfect on {100} and {010}

1.7 Mohs Hardness

Not Available4

2 10

1.8 Chemical Composition

Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Not Available

Schorl and Rosasite Chemical Formula

While comparing Schorl and Rosasite 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 Schorl and Rosasite chemical formula.

Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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Schorl and Rosasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Rosasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Rosasite Optical Properties during the identification of gemstone. Specific gravity of Schorl is 4-4.2 whereas that of Rosasite is 4-4.2.