Polished Indigo Gabbro Spheres from Madagascar
Weight: 13 ounces (average) Size: 59 - 64 mm | 3 - 3.4 inches
Origin: Madagascar
Grade: A Grade
Gabbro is a phaneritic, mafic intrusive ingenous rock formed from the slow cooling of magnesium rich and iron rich magma into a holocrystalline mass deep beneath the Earth's surface.
Gabbro is a phaneritic, mafic intrusive ingenous rock formed from the slow cooling of magnesium rich and iron rich magma into a holocrystalline mass deep beneath the Earth's surface.
