Ludlamite and Zinnwaldite Physical Properties

Ludlamite

Zinnwaldite

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1 Physical Properties

1.1 Tenacity

Not Available

Elastic

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.1-3.22.9-3.1

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

Vitreous, pearly on cleavage

Perfect basal {001}

1.7 Mohs Hardness

3-43.5-4.0

2 10

1.8 Chemical Composition

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

Not Available

Ludlamite and Zinnwaldite Chemical Formula

While comparing Ludlamite and Zinnwaldite 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 Ludlamite and Zinnwaldite chemical formula.

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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Ludlamite and Zinnwaldite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ludlamite and Zinnwaldite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Zinnwaldite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 2.9-3.1 whereas that of Zinnwaldite is 2.9-3.1.