Cavansite: Navigating Its Zodiac Sign Influence The captivating gemstone cavansite is available in vivid blue to blue-green tones. It is a silicate mineral found in gneisses and pelitic schists. Calcium vanadium, the source regarding this name, is present in the composition of this stone. Powerful stones like cavansite can be used to increase intuitive awareness and spiritual development. The gemstone cavansite is connected to the element of wind.