From a rare find in the Viburnum, Trend, Missouri comes this extra-small specimen of Massive Galena (a lead sulfide), the most important ore mineral ...
Fluorite (calcium fluoride) comes in an amazing array of colors. It is commonly found in purple, blue, green, yellow, and clear, but can also occur ...
Calcite," which gets its name from ""chalix"" the Greek word for lime", is a most amazing and yet, most common mineral.
Calcite," which gets its name from ""chalix"" the Greek word for lime", is a most amazing and yet, most common mineral.
Apple Green Calcite. Each piece is approx. 2"" x 2"" x 1"". Calcite is truly one of the best collection type minerals.
Tektites are one of the most mysterious and most hotly-debated rock types on earth. Their origin remains an unsolved mystery after several hundred ...
