It is usually black or reddish brown and has a pronounced metallic sheen. These specimens were collected from Graves Mountain, Lincoln County, Georgia back in the 1970's. Hard enough to take a fine polish, this material is great for making interesting jewelry. These specimens are a nice addition to a collection because they are cut and polished on one side to show their inner beauty. Large pieces of rock salt have a hole bored into them, then a lighting kit and a polished wooden base are installed.
Light bulb is included.
Sand Calcite crystals Interesting and hard to find. These crystals came from Rattlesnake Butte, Pennington Co., South Dakota. Note that the picture shows examples only. Click thumbnail for prices and bigger photo. M688 Sapphire Crystals from Madagascar.