Bastnasite and Gedrite Physical Properties

Bastnasite

Gedrite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

4.95-5.03.15-3.259

1 7.18

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Fracture

Uneven

Cleavage

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

Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.

Mohs Hardness

4-55.5-6

2 10

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Chemical Composition

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

(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Bastnasite and Gedrite Chemical Formula

While comparing Bastnasite and Gedrite 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 Gedrite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Bastnasite and Gedrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Gedrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Gedrite Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 3.15-3.259 whereas that of Gedrite is 3.15-3.259.