Polished Large "Water Sapphire" sphere with Sillimanite x 1 From Ambatofinandrahana, Madagascar
A NOTE FROM NICK
A large 146 mm polished Iolite "Water Sapphire" sphere with unusual blue spark of Cordierite and big pink Sillimanite spots. Beauty!
PRODUCT DESCRIPTION
Malagasy Iolite with Groovy Pink Sillimanite Spots
Iolite, sometimes known as "Water sapphire", is the blue material from the Cordierite family of minerals. This specific Iolite is an extremely unique and rare Malagasy Iolite, polished by expert lapidaries, features subtle pink Sillimanite (heavy) spots and patterns, but it is the small bright blue flashes that make this material very desirable and therefore making it a unique collector’s gem. Formed in metamorphic rocks from minerals like mica and feldspar, its deep blue, nearly black in low light, contrasts vividly with the pink inclusions. Only one consignment of this exclusive material was ever received.
PRODUCT MINERALS
Cordierite, Magnesium Iron, Aluminium Cyclosilicate, Sillimanite
PRODUCT FEATURES
Rare, Orthorhombic, Pleochroism
PRODUCT COLOUR
Blue, Black, Pink
MOHS HARDNESS SCALE
7 to 7.5
PRODUCT DATA
Locality = Ambatofinandrahana, Madagascar
Grade = Very Good Grade
Size = 146 mm