A very large #quartz #herkimer diamond #crystal on crystallized #dolomite matrix from St. Johnsville #New York. Seen at the @nysmuseum display. Hershel Friedman minerals.net photo. #herkimerdiamond #quartzcrystal #heshyquartz

by mineralsnet · 1 year ago · via Instagram

#Purple #calcite from Rossie, St. Lawrence Co. #NewYork. Seen at the @nysmuseum in Albany in 2024. Hershel Friedman minerals.net photo. #mineralspecimen #purplecalcite #heshycalcite

by mineralsnet · 1 year ago · via Instagram

Blue #apatite #crystal from #Rossie, #NewYork. From the @nysmuseum collection display in Albany. Hershel Friedman www.minerals.net photo. #mineralspecimen #fluorapatite #apatitecrystal #heshyapatite

by mineralsnet · 1 year ago · via Instagram