Extremely Rare Archives

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" Grandidierite " Rare mineral Specimen, Weight : 400g Mineral : Madagascar C/F -: (Mg,Fe2+)Al3(BO3)(SiO4)O2 This is Orthorhombic crystal system, Nesosilicate mineral from Madagascar

“Grandidierite ” The World Extremely Rare mineral Specimen Musium Piece

~~$21,000.00~~ $15,000.00

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NATURAL GRANDIDEIRITE SPECIMEN

~~$720.00~~ $510.00

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Sale! $GRANDIDEIRITE SPECIMEN 💎 Grandidierite is an extremely rare mineral and gem that was first discovered in 1902 in southern Madagascar. Mohs scale hardness: 7.5 Optical properties: Biaxial (-) Category: Nesosilicate Formula: (Mg,Fe2+)Al3(BO3)(SiO4)O2 Crystal system: Orthorhombic Color: Bluish green Dispersion: strong Refractive Index: 1.590 to 1.623 Grandidierite have been found in only a few locations around the world, including Malawi, Namibia and Sri Lanka and few gem quality specimens have come mainly from Madagascar.$

NATURAL GRANDIDEIRITE SPECIMEN

~~$355.00~~ $250.00

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NATURAL GRANDIDEIRITE SPECIMEN WITH TOURMALINE CRYSTALS

~~$445.00~~ $360.00

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Sold Out $Grandidierite is an extremely rare mineral and gem that was first discovered in 1902 in southern Madagascar. Optical properties: Biaxial (-) Category: Nesosilicate Formula: (Mg,Fe2+)Al3(BO3)(SiO4)O2 Crystal system: Orthorhombic Color: Bluish green Dispersion: strong Hardness: 7 to 7.5 Refractive Index: 1.590 to 1.623 Grandidierite have been found in only a few locations around the world, including Malawi, Namibia and Sri Lanka and few gem quality specimens have come mainly from Madagascar.$