Radiating sprays of long, almost needlelike crystals of dark green actinolite intergrown with amber-brown garnet in a thin vein cutting very lean franklinite-calcite ore containing sparse, scattered, tiny grains of willemite. Also in the vein are a few tabular, centimeter-sized crystals of hematite. This specimen is in the Steven Phillips collection.
Identifier: ACT11a Locality: Sterling mine, Ogdensburg Specimen size: 15 x 11 x 9 cm Photo credit: Earl R. Verbeek
