blende vs sphalerite

blende and sphalerite both are nouns.

Word	Noun	Adjective	Verb	Adverb
blende	Yes	No	No	No
sphalerite	Yes	No	No	No

As nouns, blende and sphalerite are synonyms defined as:

blende and sphalerite: an ore that is the chief source of zinc; consists largely of zinc sulfide in crystalline form

Other synonyms of blende include zinc blende.

blende (noun)	sphalerite (noun)
an ore that is the chief source of zinc; consists largely of zinc sulfide in crystalline form	an ore that is the chief source of zinc; consists largely of zinc sulfide in crystalline form