Peripheral neuropathy is a condition of the peripheral nervous system, which consists of nerves outside the brain and spinal cord. Symptoms include numbness, tingling or prickling in the toes or fingers in early stages.
For other uses, see Agate (disambiguation). Agate /ËÃ¦É¡Ét/ is a cryptocrystalline variety of silica, chiefly chalcedony, characterised by its fineness of grain and brightness of color. Although agates may be found in various kinds of rock, they are classically associated with volcanic rocks and can be common in certain metamorphic rocks.
The prairie agate was declared the state rock by legislative action in 1967. Agate is a semiprecious stone, and Nebraska has an abundance of it, especially in the Oglala National Grassland. Agate is a variegated quartz noted for its layered varieties. In most specimens, the bands are coarse and differ in color and translucency, as well as in compactness and porosity. The prairie agate, distinguished from most other agates because it seldom has these bands, is still colorful, has a rounded irregular shape and is popular for jewelry.