Haïlaborite
Haïlaborite is a rare mineral that was first discovered in Madagascar. Its chemical formula is Ca2Al2(SiO4)2(OH)2, and it belongs to the melilite group of minerals. The color of haïlaborite can range from pale yellow to brownish-orange, and it typically forms in prismatic crystals. It is known for its vitreous luster and is relatively hard, rating around 6.5 on the Mohs scale.
The geological conditions under which haïlaborite forms are quite specific, often found in metamorphosed carbonate rocks
Research into haïlaborite has contributed to the understanding of mineral formation processes in specific metamorphic environments.