Gahnospinel and Oligoclase Physical Properties

Gahnospinel

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

3.65-4.552.62-2.67

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

None, but may exhibit slight parting

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

7.5-86-6.5

2 10

1.8 Chemical Composition

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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

Gahnospinel and Oligoclase Chemical Formula

While comparing Gahnospinel 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 Gahnospinel and Oligoclase chemical formula.

Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

Gahnospinel Vs Jeremejevite

Gahnospinel Vs Hydrogrossular

Gahnospinel Vs Indicolite Blue Tourmaline

Gahnospinel and Oligoclase Specific Gravity

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