Relatively benign, grade I gliomas may be treated only by surgery. Most malignant tumors require additional treatments, including repeat surgery. Imaging techniques, such as CT and MRI, are used along with surgery to help map the area of the tumor in the brain.
Alternate: Chrysoprase. Chrysophase, the alternate May birthstone, is an ornamental gemstone with a hardness level between 6.0 and 7.0. A member of the very large chalcedony family, Chrysoprase is an opaque green or yellowish-green with the name stemming from the Greek chrysos meaning gold and prason meaning leek.RIMARY: EMERALD - The stone which brings security in love and nature. Emerald, the primary May birthstone, is a precious gemstone that ranks between 7.5 and 8.0 on Moh's hardness level scale. As mentioned n the aquamarine section, emerald is a green gemstone in the beryl family.
The more common birthstone for June is the pearl. Where the name pearl derives is unknown, but it perhaps comes from the Latin word perna, which is a type of shell. Pearls are produced by mollusks, or more specifically, oysters.