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Howlite
Howlite

Catapleiite
Catapleiite



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Howlite
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Catapleiite

Howlite and Catapleiite 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
2.45-2.582.72
Amber
1 7.18
1.5 Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Brittle, Metallic, Brittle, Metallic
1.6 Cleavage
None
{110} Perfect, {010} Perfect
1.7 Mohs Hardness
3-3.55-6
Amber
2 10
1.8 Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Na 2ZrSi 3O 9 · 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Howlite and Catapleiite Chemical Formula

While comparing Howlite and Catapleiite 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 Howlite and Catapleiite chemical formula.

  • Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Howlite and Catapleiite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Catapleiite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Catapleiite Optical Properties during the identification of gemstone. Specific gravity of Howlite is 2.72 whereas that of Catapleiite is 2.72.