mineral association वाक्य

In 1978, the International Mineral Association recognized Barnes by giving the name " virgilite " to a newly discovered volcanic glass he had collected in Peru, and two fossils have " barnesi " in their scientific names, honoring Barnes'work with Cambrian rocks in central Texas.
It occurs as miarolytic cavity fillings of alkalic pegmatites in the Kola occurrence and in nepheline syenite in the Magnet Cove igneous complex of Arkansas, US . Its mineral association includes cafetite ( which with it is also polymorphous ), perovskite, titanite, rutile and ilmenite.