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Ludlamite
Ludlamite

Hurlbutite
Hurlbutite



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Ludlamite
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Hurlbutite

Ludlamite and Hurlbutite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.1-3.22.90
Amber
1 7.18
1.5 Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
1.6 Cleavage
Vitreous, pearly on cleavage
None
1.7 Mohs Hardness
3-46
Amber
2 10
1.8 Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaBe 2(PO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Ludlamite and Hurlbutite Chemical Formula

While comparing Ludlamite and Hurlbutite 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 Hurlbutite chemical formula.

  • Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Ludlamite and Hurlbutite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ludlamite and Hurlbutite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Hurlbutite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 2.90 whereas that of Hurlbutite is 2.90.