We call this the "ice cream" pocket for obvious reasons. This is a very choice specimen from this one famous pocket of calcite with included copper, that gives it a wonderful pastel green hue unique to my knowledge. The surface looks like sugar, brilliant and sparkly! This is not a true species per se, but rather a varietal of calcite. Nevertheless, it is unusual stuff from a one-time find, and extremely attractive in any case. They glitter like you won't believe. This is a large one! I am told these came out in the mid-1980s