These Lamna obliqua Shark's Tooth from the Eocene Epoch are 37.5 to 54 million years old.
Bornite is an important copper ore mineral. It does however get used in the mineral trade as a curiosity called ""peacock ore"". A favorite among ...
Calcite is truly one of the best collection type minerals. There are lots of interesting forms and varieties as well as colorful and beautiful ...
These stones are called polished amethyst quartz windows because they are tumbled amethyst quartz that has had a window cut on one face that is ...
These are nice bags tumbled hematite. There are around 12 to 20 pieces per bag.
These are nice bags of fluorite octahedrons. There are around 10 to 15 pieces per bag.
These are nice bags of tumbled clear quartz. There are around 15 to 25 pieces per bag.
These are nice bags of tumbled amazonite. They are nice to have as stones to carry with you or give as gifts.
These are nice bags of tumbled lapis lazuli. They are nice to have as stones to carry with you or give as gifts.
These are nice bags of beautiful amethyst quartz. It is some of the deepest purple amethyst.
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 ...
