Dendrites look just like fossilized plant matter. However, they are mineral formations, not plant fossils. The word dendrite comes from the Greek word dendron, meaning tree, and also describes the branched projections of a nerve cell.
A dendrite is a superficial deposit of manganese oxide that has crystallized in a multi-branching tree-like pattern. This pattern is what fools us into thinking they are plant fossils. Dendrites form as water rich in manganese and iron flows along tiny cracks between layers of limestone and other rock types. Dendrites may also consist of iron oxides and other minerals.
Metaphysically, stones with dendrites resonate with blood vessels and nerves. They help heal the nervous system and conditions such as neurdendrites from Germanyalgia. Dendrites can help with skeletal disorders, reverse capillary degeneration and stimulate the circulatory system. It is the stone of plenitude; it also helps create a peaceful environment and encourage the enjoyment of each moment. Dendrites deepen your connection to the earth and can bring stability in times of strife or confusion.