Grandidierite

Grandidierite

Grandidierite is an exceptionally rare and highly sought-after gemstone known for its mesmerizing blue-green to greenish-blue color and remarkable transparency. Discovered in Madagascar, this gemstone is prized by collectors and fine jewelry designers for its uniqueness and limited availability.

Natural grandidierite gemstones often display subtle pleochroism, showing different shades of blue and green when viewed from various angles. Due to its rarity and natural beauty, grandidierite is primarily used in exclusive, high-end, and custom jewelry designs.

This category features carefully selected natural grandidierite gemstones in various cuts and sizes, suitable for bespoke and luxury jewelry creations.

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Grandidierite

Exceptionally rare blue-green gemstones for exclusive jewelry designs.

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Extremely Rare Gemstone - Natural Grandidierite
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Rare Natural Grandidierite
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Extremely Rare Gemstone - Natural Grandidierite Grandidierite is an extremely rare mineral and gem that was first discovered in 1902 in southern Madagascar. Grandidierite is nesosilicates mineral with the chemical formula (Mg, Fe2+)(Al, Fe3+)3(SiO4)(BO3)O2.                                                                  It is found colors such as Bluish-green, greenish-blue with 7½ hardness according to the more hardness scale. Grandidierite can be seen Vitreous, Pearly luster stones with 2.98 - 2.99 Specific Gravity. This gemstone was named in honor of French explorer Alfred Grandidier who studied the natural history of Madagascar. He is a French explorer and Naturalist. Grandidierite has very strong dispersion and Visible Pleochroism, It is a Nesosilicates orthorhombic Mineral with Biaxial (-) Optical Properties. Inside of grandidierite mostly can be seen very perfect cleavages. As an optical properties, it has a 1.583 - 1.639 refractive index. Grandidierite can be found in India, Germany, Denmark, Malawi, Namibia, India, Norway, and Sri Lanka. Grandidierite's main source is Madagascar. Healing Properties of Grandidierite Grandidierite is a blue gemstone that promotes spiritual awakening, peace, and tranquility and can encourage you to communicate in a calm and clear manner.
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Natural Grandidierite Specimen
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Extremely Rare Gemstone - Natural Grandidierite Grandidierite is an extremely rare mineral and gem that was first discovered in 1902 in southern Madagascar. Grandidierite is nesosilicates mineral with the chemical formula (Mg, Fe2+)(Al, Fe3+)3(SiO4)(BO3)O2.                                                                  It is found colors such as Bluish-green, greenish-blue with 7½ hardness according to the more hardness scale. Grandidierite can be seen Vitreous, Pearly luster stones with 2.98 - 2.99 Specific Gravity. This gemstone was named in honor of French explorer Alfred Grandidier who studied the natural history of Madagascar. He is a French explorer and Naturalist. Grandidierite has very strong dispersion and Visible Pleochroism, It is a Nesosilicates orthorhombic Mineral with Biaxial (-) Optical Properties. Inside of grandidierite mostly can be seen very perfect cleavages. As an optical properties, it has a 1.583 - 1.639 refractive index. Grandidierite can be found in India, Germany, Denmark, Malawi, Namibia, India, Norway, and Sri Lanka. Grandidierite's main source is Madagascar. Healing Properties of Grandidierite Grandidierite is a blue gemstone that promotes spiritual awakening, peace, and tranquility and can encourage you to communicate in a calm and clear manner.
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Natural Grandidierite Specimen
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Extremely Rare Gemstone - Natural Grandidierite Grandidierite is an extremely rare mineral and gem that was first discovered in 1902 in southern Madagascar. Grandidierite is nesosilicates mineral with the chemical formula (Mg, Fe2+)(Al, Fe3+)3(SiO4)(BO3)O2.                                                                  It is found colors such as Bluish-green, greenish-blue with 7½ hardness according to the more hardness scale. Grandidierite can be seen Vitreous, Pearly luster stones with 2.98 - 2.99 Specific Gravity. This gemstone was named in honor of French explorer Alfred Grandidier who studied the natural history of Madagascar. He is a French explorer and Naturalist. Grandidierite has very strong dispersion and Visible Pleochroism, It is a Nesosilicates orthorhombic Mineral with Biaxial (-) Optical Properties. Inside of grandidierite mostly can be seen very perfect cleavages. As an optical properties, it has a 1.583 - 1.639 refractive index. Grandidierite can be found in India, Germany, Denmark, Malawi, Namibia, India, Norway, and Sri Lanka. Grandidierite's main source is Madagascar. Healing Properties of Grandidierite Grandidierite is a blue gemstone that promotes spiritual awakening, peace, and tranquility and can encourage you to communicate in a calm and clear manner.
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Natural Grandidierite Crystal Specimen
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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.
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Rare Grandidierite Specimen
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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
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"Grandidierite " The World Extremely Rare mineral Specimen Museum Piece
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About Grandidierite Gemstones

Grandidierite is one of the rarest transparent gemstones in the world. Most gem-quality stones originate from Madagascar, with transparent specimens being extremely scarce. The gemstone’s unique blue-green coloration and vitreous luster make it highly desirable among collectors.

With a hardness of 7 to 7.5 on the Mohs scale, grandidierite is suitable for jewelry but should be handled with care, especially in rings or everyday wear pieces. Grandidierite is typically untreated, preserving its natural color and rarity.

Grandidierite gemstones are best suited for statement jewelry, collector pieces, and custom designs where exclusivity and rarity are key.

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