Today we have in the Natural Stone Pet Charms! They come in five different kinds. Here's the run down. Calcite for aiding the skeletal system. Turquoise, the master healer, Fluorite for bones, repertory and digestion, Obsidian for absorbing negative energy and Jasper for nurturing and tranquility. If you are comforted and strengthened with the energy of natural stones and crystals, now is your chance to give the same benefits to the animals you love. They clip onto a collar. I know for sure that my Stewart would benefit from the Turquoise, master healer. We are excited to offer the stone charms. A great way to love your pet. Look for all of the new natural stone pet charms in the Raven and Crow store. Bring crystal and stone health and vibrancy to the animal you love!