Andradite Garnet and Ludlamite Physical Properties

Andradite Garnet

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

3.8-3.93.1-3.2

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

None

Vitreous, pearly on cleavage

1.7 Mohs Hardness

6.5-7.53-4

2 10

1.8 Chemical Composition

Ca₃Fe³⁺₂Si₃O₁₂

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

Andradite Garnet and Ludlamite Chemical Formula

While comparing Andradite Garnet 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 Andradite Garnet and Ludlamite chemical formula.

Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂
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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Andradite Garnet and Ludlamite Specific Gravity

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