where is rhodochrosite found in the united states
Rhodochrosite Rhodochrosite is Argentina's "national gemstone".[4][5] Colorado officially named rhodochrosite as its state mineral in 2002.[6] Large specimens have been found in the Sweet Home Mine near Alma, Colorado.
Volcanic rock Volcanic rocks are usually fine-grained or aphanitic to glass in texture. They often contain clasts of other rocks and phenocrysts. Phenocrysts are crystals that are larger than the matrix and are identifiable with the unaided eye. Rhomb porphyry is an example with large rhomb shaped phenocrysts embedded in a very fine grained matrix.