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Thomsonite
Thomsonite

Ludlamite
Ludlamite



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Thomsonite
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Ludlamite

Thomsonite and Ludlamite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.25-2.403.1-3.2
1 7.18
👆🏻

Fracture

-
-

Cleavage

perfect on {010}; good on {100}
Vitreous, pearly on cleavage

Mohs Hardness

5-5.53-4
2 10
👆🏻

Chemical Composition

NaCa 2Al 5Si 5O 20 · 6H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Thomsonite and Ludlamite Chemical Formula

While comparing Thomsonite 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 Thomsonite and Ludlamite chemical formula.

  • Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Thomsonite and Ludlamite Specific Gravity

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