Poldervaartite and Emerald Physical Properties

Poldervaartite

Emerald

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

2.912.67-2.78

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

None

Imperfect on the [0001]

1.7 Mohs Hardness

Not Available7.5-8

2 10

1.8 Chemical Composition

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

Be₃Al₂SiO₆

Poldervaartite and Emerald Chemical Formula

While comparing Poldervaartite and Emerald 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 Poldervaartite and Emerald chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Emerald- Be₃Al₂SiO₆

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Poldervaartite and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.