Realgar and Ludlamite Physical Properties

Realgar

Ludlamite

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1 Physical Properties

1.2 Tenacity

Not Available

1.3 Solubility

Not Available

1.5 Durability

Not Available

1.7 Specific Gravity

3.563.1-3.2

1 7.18

1.10 Fracture

(e.g. graphite).

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

1.12 Cleavage

{010} Good

Vitreous, pearly on cleavage

1.14 Mohs Hardness

Not Available3-4

2 10

1.15 Chemical Composition

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Realgar and Ludlamite Chemical Formula

While comparing Realgar 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 Realgar and Ludlamite chemical formula.

Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
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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Realgar and Ludlamite Specific Gravity

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