Kambaba Jasper, Tumbled Stone, 1 lb lot Black Tourmaline They may be more accurately

They may be more accurately described as "Orthoceratidae" to include other genus

with the top surface cleaned to remove oxidation and sprayed to protect its color

Smaller rough pieces also available

5" x 4" x 1

enjoy an easy and fun tumbling experience for any rockhound

Kambaba Jasper, Tumbled Stone, 1 lb lot Black Tourmaline They may be more accuratelyKambaba Jasper, widely believed to be a stromatolite (similar to fossilized algae), is actually a rhyolite found in volcanic rock. It has a solid medium to forest green background, with black circular formations caused by amphibole needles. This material comes from Madagascar, and takes a nice polish. 1 lb lot contains 20 30 pieces of approximately 1" fully tumbled stone