Oligoclase and Hematite Physical Properties

Oligoclase

Hematite

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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

2.62-2.675.00-5.30

1 7.18

1.5 Fracture

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

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

From the Greek, oligos and kasein, little cleavage.

None, may show partings on {0001} and {10 1 1}

1.7 Mohs Hardness

6-6.56

2 10

1.8 Chemical Composition

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

Fe 2O 3Arthur Thomas , Gemstones (2009)

Oligoclase and Hematite Chemical Formula

While comparing Oligoclase and Hematite 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 Oligoclase and Hematite chemical formula.

Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

Compare Colorless Gems

Oligoclase Vs Pezzottaite

Oligoclase Vs Phenakite

Oligoclase Vs Phosphophyllite

Oligoclase and Hematite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Oligoclase and Hematite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Hematite Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 5.00-5.30 whereas that of Hematite is 5.00-5.30.