Bastnasite and Ludlamite Physical Properties

Bastnasite

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

4.95-5.03.1-3.2

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

Imperfect to indistinct on {10 1 0}, parting on {0001}

Vitreous, pearly on cleavage

1.7 Mohs Hardness

4-53-4

2 10

1.8 Chemical Composition

(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Bastnasite and Ludlamite Chemical Formula

While comparing Bastnasite 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 Bastnasite and Ludlamite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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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Bastnasite and Ludlamite Specific Gravity

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