Zinnwaldite and Ludlamite Physical Properties

Zinnwaldite

Ludlamite

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1 Physical Properties

1.1 Tenacity

Elastic

Not Available

1.4 Solubility

Not Available

1.6 Durability

Not Available

1.7 Specific Gravity

2.9-3.13.1-3.2

1 7.18

1.8 Fracture

Uneven

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

1.9 Cleavage

Perfect basal {001}

Vitreous, pearly on cleavage

1.10 Mohs Hardness

3.5-4.03-4

2 10

1.11 Chemical Composition

Not Available

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

Zinnwaldite and Ludlamite Chemical Formula

While comparing Zinnwaldite 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 Zinnwaldite and Ludlamite 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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Zinnwaldite and Ludlamite Specific Gravity

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