Rosasite and Oligoclase Physical Properties

Rosasite

Oligoclase

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in cold

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4-4.22.62-2.67

1 7.18

1.5 Fracture

Splintery

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

1.6 Cleavage

Perfect on {100} and {010}

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

46-6.5

2 10

1.8 Chemical Composition

Not Available

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Rosasite and Oligoclase Chemical Formula

While comparing Rosasite and Oligoclase 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 Rosasite and Oligoclase chemical formula.

Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Rosasite and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rosasite and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rosasite and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Rosasite is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.