What is spina bifida? Spina bifida is a neural tube defect that develops during the first month of pregnancy when the spinal column does not close completely. What are the effects of spina bifida? The effects of spina bifida are different for every person.
Tsavorite or tsavolite is a variety of the garnet group species grossular, a calcium-aluminium garnet with the formula Ca3Al2Si3O12. Trace amounts of vanadium or chromium provide the green color.
Tsavorite Garnet Gemstone Information. Tsavorite garnet is a green to emerald colored variety of grossular garnet, which is composed of calcium aluminum silicate. The intense green of tsavorite is owed to traces of vanadium or chromium. This desirable hue can cause tsavorite to be mistaken for fine emeralds.