Wiktionary
collinsite
n. (context mineral English) A triclinic-pinacoidal mineral containing calcium, hydrogen, iron, magnesium, oxygen, and phosphorus.
Wikipedia
Collinsite
Collinsite is a mineral with formula Ca(Mg,Fe)(PO)·2HO. It was discovered in British Columbia, Canada, and formally described in 1927. It was named in honor of William Henry Collins (1878–1937), director of the Geological Survey of Canada. There are three varieties of the mineral: magnesian collinsite, zincian collinsite, and strontian collinsite. The crystal structure consists of polyhedral chains linked by weak hydrogen bonds.