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Sapphire Rhodolite Hessonite
Hardness 9 on the Mohs scale  and Hardness 7,25 and density 3,78 - Hardness 7,25 and density 3,58
density 3,95 - 4,1sapphire belongs to 3,90 this garnet is the happy - 3,65 This garnet belongs to the
the family of corundums, it occupies conjunction between Pyrope and family of grossularites.
the second rank behind diamond by Almandite.  It belongs to the cubic
its hardness. system as well as diamond.
Malaya garnet Iolite Rubellite
Hardness 7,25 and density 3,74 -  Hardness 7.5 density 2,58 - 2,66 Hardness 7-7.5 density 3.02 to
4,00 This stones shows an This gem is also appreciated by 3.26 This red tourmaline can be
exceptional capacity has to restore  the collectors, its dichroism very confused with the ruby by the
the light thanks in particular to its  marked and its blue color saw it amateurs ).  The etymology of
high index of refraction, including in  qualified incorrectly water sapphire its name comes from Latin and
not very enlightened condition. by certain stone amateurs. means:  (which draws on the
red).
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