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About: Chapmanite     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Substance100019613, within Data Space : dbpedia.org associated with source document(s)

Type: Thingdul:ChemicalObjectchemical substanceyago:WikicatAntimonyMineralsMineralmineralyago:WikicatMineralsyago:WikicatMonoclinicMineralsyago:WikicatSilicateMineralsyago:WikicatSilicatesyago:Abstraction100002137yago:Chemical114806838yago:Compound114818238yago:Material114580897yago:Matter100020827yago:Mineral114662574yago:Part113809207yago:PhysicalEntity100001930yago:Relation100031921yago:WikicatIronMineralsyago:Salt115010703yago:Silicate115040033yago:Substance100019613 New Facet based on Instances of this Class

Chapmanite is a rare silicate mineral belonging to the nesosilicate group, discovered in 1924, and named in honour of the late (1821–1904), a geology professor at the University of Toronto. Chemically, it is an iron antimony silicate, closely related to , and may contain aluminium impurities. It is closely associated with silver mines, most notably the Keeley mine in Ontario, Canada, found in quartz veinlets containing graphite in gneiss. It takes the form of a powdery, yellow-green, semitransparent solid, and leaves a streak of the same color. Early German texts have referred to the mineral as antimon-hypochlorite.