Niocalite

Facts

Chemical formula

Ca₇Nb(Si₂O₇)₂O₃F

Crystal system

Monoclinic

Density

3.17 g/cm³

Elements in formula

Calcium, Niobium, Silicon, Oxygen, Fluorine

Number of elements

5

IMA status

Grandfathered

Type locality

Oka

Named after

Calcium

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q2796321