Grandidierite is an extremely rare mineral and gem that was first discovered in 1902 in southern Madagascar.
Formula: (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Colour: Bluish green, greenish blue
Lustre: Vitreous, Pearly
Hardness: 7½
Specific Gravity: 2.98 – 2.99
Crystal System: Orthorhombic
This gemstone was named in honor of French explorer Alfred Grandidier who studied the natural history of Madagascar. Alfred Grandidier is French explorer and Naturalist.
Grandidierite has very strong dispersion and Visible Pleochroism, It also Nesosilicates Mineral with Bi axial (-) Optical Properties.
Healing Properties of Grandidierite
Grandidierite is a blue gemstone promote spiritual awakening, peace and tranquility and can encourage you to communicate in a calm and clear manner.