allaniteY
AllaniteY is a mineral species belonging to the allanite group, which are sorosilicate minerals within the epidote supergroup. It is characterized by the presence of yttrium as a significant substituting element. AllaniteY is an opaque to translucent mineral, typically black, brownish-black, or dark brown in color. It often exhibits a vitreous to greasy luster.
The chemical formula for allaniteY is (Ca,REE,Y)2(Al,Fe)3(SiO4)(SiO3O)(OH), where REE represents rare earth elements and Y denotes
It is found in a variety of igneous and metamorphic rocks, including granites, diorites, gabbros, gneisses, and