Commodity Code

niobium

http://resource.geosciml.org/classifier/cgi/commodity-code/niobium

star this property definition Niobium, formerly columbium, is a chemical element with the symbol Nb (formerly Cb) and atomic number 41. It is a soft, grey, ductile transition metal, which is often found in the pyrochlore mineral, the main commercial source for niobium, and columbite. more like this
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02.01.18 more like this
Nb more like this
star this property source http://en.wikipedia.org/wiki/Niobium more like this
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Resource
Concept
star this property broader metal
star this property narrower niobium
star this property in scheme commodity code
unstar this property is primary topic of niobium& properties=isPrimaryTopicOf