Amethyst on Stand Knives True ammonites appeared in the

True ammonites appeared in the fossil record about 240 million years ago during the Triassic Period

Fossils for Kids is filled with fascinating photographs and captivating facts that will teach junior fossil hunters how fossils form

The word prasiolite means "scallion green-colored stone" and is derived from Greek "prason" meaning "leek" and "lithos" meaning "stone"

bonsai plants

science-themed take on mysteries for kids will become a family favorite

Amethyst on Stand Knives True ammonites appeared in theBrazil Amethysts are the most valuable variety of quartz, and were one of the first gemstones used by people around the world. The Greeks believed that drinking wine from an amethyst cup would prevent intoxication. Royalty has also favored the purple gemstone, and at one time amethysts were reserved for royalty alone. The rich purple color is due to iron and manganese inclusions. Exposure to heat or irradiation can produce a yellow to orange color