2" Natural Rough Black Tourmaline Mineral Crystal Specimen Schorl Brazil Rubellite the tail ended in a

the tail ended in a bony knob or even spikes

This crest housed part of the nasal passage and may have functioned as a resonating chamber for producing sounds

providing protection from rivals and prey

chalcedony

Although they lived entirely in the ocean

2" Natural Rough Black Tourmaline Mineral Crystal Specimen Schorl Brazil Rubellite the tail ended in aLocation: Brazil Weight: 4. 8 Ounces Dimensions: 2 Inches Long, 1. 9 Inches Wide, 1. 3 Inches Thick The item pictured is the one you will receive. Black Tourmaline is a highly sought after gemstone known for its striking black color, durability, and metaphysical properties. Also called Schorl, it is a member of the tourmaline group and forms naturally in igneous and metamorphic rocks. Its Mohs hardness of 7 to 7. 5 allows it to be fashioned into