Chromo-alumino-povondraite was found in marble in association with bright green tremolite (“chrome-tremolite”), quartz, phlogopite, and fluorapatite in the talc-tremolite-cummingtonite schists from the # 1 Mine at Balmat in the Adirondack Lowlands, St. Lawrence County. The mineral occurs as small (up to 0.5 mm) dark green crystals in quartz, tremolite or along tremolite cleavages and contacts. This location is the second world occurrence of the chromo-alumino-povondraite.