This specimen is comprised of a cluster of lustrous stepped intergrown cubic fluorite crystals to 26 mm across. These crystals are phantoms, consisting of colorless fluorite with purple zones in the outer portions, surrounding a light green fluorite core. Minor sericite in association. No damage, except along the margins where the specimen was attached to matrix. See Mineralogical Record, Volume 42, Number 6 (November – December, 2011), pages 557-603 for a very good summary of past and current activity at this classic mineral location.