As nouns the difference between terms and petscheckite
is that terms is while petscheckite is (mineralogy) a trigonal-hexagonal scalenohedral black mineral containing iron, niobium, oxygen, tantalum, and uranium.
terms
English
Noun
(head)
Statistics
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petscheckite
English
Noun
(mineralogy) A trigonal-hexagonal scalenohedral black mineral containing iron, niobium, oxygen, tantalum, and uranium.
References
* Petscheckite in the Mineralogy Database: [http://webmineral.com/data/Petscheckite.shtml]