Poldervaartite and Ludlamite Physical Properties

Poldervaartite

Ludlamite

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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

2.913.1-3.2

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

Vitreous, pearly on cleavage

1.7 Mohs Hardness

Not Available3-4

2 10

1.8 Chemical Composition

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

(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Poldervaartite and Ludlamite Chemical Formula

While comparing Poldervaartite and Ludlamite 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 Ludlamite chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Poldervaartite and Ludlamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.