TB6AK3: Group of very sharp Calcite crystals on matrix, with prismatic habit and good rhombohedral terminations, transparent, colorless, and very lustrous. The specimen is from a very rare locality and comes from the Lee Hogg collection, whose label we will send to the buyer.
Portland Mine, Lost Cabin Wash, Black Mountains, Mining District Pilgrim, Mohave County, Arizona  USA

Specimen size: 6 × 4 × 2.4 cm = 2.36” × 1.57” × 0.94”

Main crystal size: 1 × 0.4 cm = 0.39” × 0.16”