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.
Chrysoprase. Chrysoprase is chalcedony (microcrystalline quartz) whose rich green color is derived from the presence of minute particles of a nickel containing mineral, willemseite.The derivation of its beautiful color is, then, analogous to chrysocolla chalcedony's coloration by particles of the copper mineral chrysocolla.hrysoprase. Chrysoprase is chalcedony (microcrystalline quartz) whose rich green color is derived from the presence of minute particles of a nickel containing mineral, willemseite.