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 Value. Clean, quality tsavorite, rough or faceted, is not difficult to find. However, pieces over two carats are rare, and the price per carat jumps at that size. Stones up to one carat are common. âTsavorite Garnet on Graphite,â Merelani Hills, Lelatema Mts, Arusha Region, Tanzania.