Humite and Prase Physical Properties

Humite

Prase

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.322.64-2.69

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Poor

Not Available

1.7 Mohs Hardness

6-6.57

2 10

1.8 Chemical Composition

(Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)

SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Humite and Prase Chemical Formula

While comparing Humite and Prase 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 Humite and Prase chemical formula.

Chemical formula of Humite- (Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Humite and Prase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Humite and Prase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Humite and Prase Optical Properties during the identification of gemstone. Specific gravity of Humite is 2.64-2.69 whereas that of Prase is 2.64-2.69.