Calcite with Siderite on Dolomite (ex Rich Kosnar Collection)

Item Description

This locality is a bit obscure, but is known to Colorado collectors for producing some of the most interesting and easily identifiable Calcites from anywhere. In the early 1980s, Richard Kosnar collected several superb specimens from this locality, which he referred to as "Windy Ridge", but the correct name for the locality is Billy Creek. The piece hosts a excellent, sharp, gemmy/translucent, well-formed, classic, colorless, scalenohedron with a satiny interior. The crystal is associated with little "balls" of intergrown, pinkish Siderite rhombs on gemmy dark brown Dolomite on matrix. The Calcite crystal measures 7 mm long and is virtually damage free. A very attractive and hard to find thumbnail specimen that would make a great addition to a Calcite suite or a collection of Colorado minerals.