Ludlamite and Fluorite Physical Properties

Ludlamite

Fluorite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

slightly water soluble and in hot hydrochloric acid

1.3 Durability

Not Available

1.4 Specific Gravity

3.1-3.23.00-3.25

1 7.18

1.5 Fracture

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

Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

Vitreous, pearly on cleavage

Octahedral, perfect on {111}, parting on {011}

1.7 Mohs Hardness

3-44

2 10

1.8 Chemical Composition

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

CaF₂

Ludlamite and Fluorite Chemical Formula

While comparing Ludlamite and Fluorite 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 Ludlamite and Fluorite chemical formula.

Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Fluorite- CaF₂

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Ludlamite and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ludlamite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.