noun
or kröhn·kite ˈkreŋˌkīt
( -s )
Etymology: modification of Spanish krönnkite, from B. Kröhnke, 19th century German mineralogist + Spanish -ite
: a mineral Na 2 Cu(SO 4 ) 2 .2H 2 O consisting of an azure-blue hydrous copper sodium sulfate that occurs massive