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.
Basically Tsavorite is green grossularite, which is the calcium rich member of the Garnet family. Chemically, this gemstone is a calcium aluminium silicate coloured by traces of chromium and/or vanadium oxide.If there is a yellowish hue to the green, this would indicate the presence of iron oxide.ith Tsavorite, what you see is what you get! Tsavorite is a very beautiful green which can range from a fresh spring-green through a rich bluish-green to a deep forest-green. Of all the valuable green gemstones, Tsavorite is the truest green.