Sard and Poldervaartite Physical Properties

Sard

Poldervaartite

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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

2.58-2.632.91

1 7.18

1.5 Fracture

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

Handbook of mineralogy (2001)

1.6 Cleavage

Not Available

None

1.7 Mohs Hardness

6.5-7Not Available

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Sard and Poldervaartite Chemical Formula

While comparing Sard and Poldervaartite 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 Poldervaartite chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Compare Blue Gemstones

Sard Vs Spinel

Sard Vs Sodalite

Sard Vs Sillimanite

Sard and Poldervaartite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sard and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Sard is 2.91 whereas that of Poldervaartite is 2.91.