Eudialyte and Bustamite Physical Properties

Eudialyte

Bustamite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

H 2 SO 4

Partly soluble in HCl.

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-3.003.32-3.43

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Distinct on {0001} imperfect on {11 2 0}

{100} perfect; {110} and {1 1 0} good; {010} poor

1.7 Mohs Hardness

5-5.55.5-6

2 10

1.8 Chemical Composition

Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Eudialyte and Bustamite Chemical Formula

While comparing Eudialyte and Bustamite 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 Eudialyte and Bustamite chemical formula.

Chemical formula of Eudialyte- Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Eudialyte and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Eudialyte and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eudialyte and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Eudialyte is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.