Really unusual specimen, unique in Ross's experience according to his own label: An earlier generation of fluorite and calcite forms the matrix for this specimen. Thin layers of lustrous, tan rhombohedral calcite then covered the original fluorite crystals. Aesthetically perched on all of this is a cluster of intergrown, lustrous and translucent, color zoned fluorite, in crystals to 4.8 cm across. The cores of the fluorite crystals are a dark amber, surrounded by a purple zone, then a dark purple rim and finally by a nearly colorless zone. Mined in April 1989 from the number four ore body. RCL 1843.