Oligoclase and Fluorapatite Physical Properties

Oligoclase

Fluorapatite

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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

2.62-2.673.1-3.25

1 7.18

1.5 Fracture

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

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

From the Greek, oligos and kasein, little cleavage.

Indistinct

1.7 Mohs Hardness

6-6.55

2 10

1.8 Chemical Composition

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

Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Oligoclase and Fluorapatite Chemical Formula

While comparing Oligoclase and Fluorapatite 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 Fluorapatite 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 Fluorapatite- Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Compare Colorless Gems

Oligoclase Vs Phosphophyllite

Oligoclase Vs Phenakite

Oligoclase Vs Pezzottaite

Oligoclase and Fluorapatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Oligoclase and Fluorapatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Fluorapatite Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 3.1-3.25 whereas that of Fluorapatite is 3.1-3.25.