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Hurlbutite
Hurlbutite

Andradite
Andradite



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Hurlbutite
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Andradite

Hurlbutite and Andradite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.903.70-4.10
Amber
1 7.18
1.5 Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
None
none
1.7 Mohs Hardness
66.5-7
Amber
2 10
1.8 Chemical Composition
CaBe 2(PO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Hurlbutite and Andradite Chemical Formula

While comparing Hurlbutite and Andradite 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 Hurlbutite and Andradite chemical formula.

  • Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Hurlbutite and Andradite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hurlbutite and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hurlbutite and Andradite Optical Properties during the identification of gemstone. Specific gravity of Hurlbutite is 3.70-4.10 whereas that of Andradite is 3.70-4.10.