Howlite

Facts

Chemical formula

Ca₂B₅SiO₉(OH)₅

Crystal system

Monoclinic

Elements in formula

Calcium, Boron, Silicon, Oxygen, Hydrogen

Number of elements

5

IMA status

Grandfathered

Named after

Henry How

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q421527