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Cordierite Iolite
Cordierite Iolite

Vesuvianite
Vesuvianite



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Cordierite Iolite
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Vesuvianite
1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Vesuvianite is virtually insolouble in acids
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.56-2.663.32-3.43
Amber
1 7.18
1.7 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, Brittle
1.8 Cleavage
Not Available
Poor on {110} and {100} very poor on {001}
1.9 Mohs Hardness
7-7.56-7
Amber
2 10
1.13 Chemical Composition
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Not Available