Sard and Oligoclase Physical Properties

Sard

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

2.58-2.632.62-2.67

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Not Available

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

6.5-76-6.5

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Sard and Oligoclase Chemical Formula

While comparing Sard 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 Sard and Oligoclase chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

Sard Vs Sodalite

Sard Vs Spinel

Sard Vs Sillimanite

Sard and Oligoclase Specific Gravity

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