Conichalcite Natural Crystal Display Specimen for Collectors | 2.75x1.75x0.63" |Green against Dark Matrix Conichalcite Natural Display Specimen. Named after the Greek words konis, meaning "powder," and chalkos, meaning "copper," in allusion to the copper in the composition and its occasional appearance as a powdery crust. Relatively uncommon but widespread, conichalcite can be found in many minor occurrences, however good specimens can be found in localities in Spain, England, the United States, Mexico, Chile, and Namibia.