Hibonite and Ludlamite Physical Properties

Hibonite

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

3.843.1-3.2

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

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

1.6 Cleavage

{0001} good, {10 1 0} parting

Vitreous, pearly on cleavage

1.7 Mohs Hardness

7.5-83-4

2 10

1.8 Chemical Composition

(Ca,Ce)(Al,Ti,Mg)12O19

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

Hibonite and Ludlamite Chemical Formula

While comparing Hibonite 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 Hibonite and Ludlamite chemical formula.

Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
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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Hibonite and Ludlamite Specific Gravity

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