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Aragonite
Aragonite

Ludlamite
Ludlamite



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Aragonite
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Ludlamite

Aragonite and Ludlamite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Dilute acid
-

Durability

-
-

Specific Gravity

2.93-2.963.1-3.2
1 7.18
👆🏻

Fracture

Subconchoidal, Conchoidal
-

Cleavage

Distinct on {010}, imperfect {110} and {011}
Vitreous, pearly on cleavage

Mohs Hardness

3.5-43-4
2 10
👆🏻

Chemical Composition

CaCO 3Michael 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

Aragonite and Ludlamite Chemical Formula

While comparing Aragonite 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 Aragonite and Ludlamite chemical formula.

  • Chemical formula of Aragonite- CaCO 3Michael 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

Aragonite and Ludlamite Specific Gravity

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