Andradite Garnet and Oligoclase Physical Properties

Andradite Garnet

Oligoclase

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.8-3.92.62-2.67

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

None

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

6.5-7.56-6.5

2 10

1.8 Chemical Composition

Ca₃Fe³⁺₂Si₃O₁₂

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

Andradite Garnet and Oligoclase Chemical Formula

While comparing Andradite Garnet 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 Andradite Garnet and Oligoclase chemical formula.

Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Andradite Garnet and Oligoclase Specific Gravity

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