Barite on Calcite from Elk Creek DX476 rainbows It isn’t a distinct mineral

It isn’t a distinct mineral species in its own right but is generally described as an iridescent mixture of hematite (Fe

Amazonite is a green to blue-green variety of microcline feldspar

Black Phantom Lemurians have been claimed to have inclusions of many different minerals

is an exceptional gemstone that mineral collectors treasure

and there is minor zoning of very light purple at the edges

Barite on Calcite from Elk Creek DX476 rainbows It isn’t a distinct mineralBarite on Calcite from Elk Creek Approx. Dimensions: 3. 5x2. 75x2. 25 inches Approx. Weight: 421 grams Locality: Elk Creek, Meade County, South Dakota Elk Creek, South Dakota, is world renowned for producing some of the finest gem quality barite crystals, often found on a contrasting matrix of yellow fluorescent calcite. These specimens are highly sought after by collectors for their intense amber, honey, or "root beer" coloration and exceptional