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#3579
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Cat's eye sillimanite 6.04 ct.
Cat's eye sillimanite 6.04 ct.Recipient :
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SILLIMANITE
Is an Aluminum Silicate with formula Al2 SiO5 .Is also polymorph with two other minerals: kyanite and andalusite. A polymorph is a mineral that shares the same chemistry but a different crystal structure with another, or other, minerals. Sillimanite is the rarest of the three trimorphs. The hardness is about 7-7.5 of the Mohs scale. This stone is dark purple-brown.From India.
Size:12x10x5.8 mm.
Weight:6.04 ct.
CODE#3579
Origin | India |