Faceted Pyrite Bead Bracelet Gemstone Carvings The most accepted theory as

The most accepted theory as to how these Agates formed is that as lava cooled

Attached to the base of the stem are roots which some types of Crinoids use to attach themselves to the sea bed

Fluorite was imported with Illinois remaining the last U

amateur collector Francis Tully presented his unusual find to curators at Chicago’s Field Museum of Natural History

The word sapphire comes from the Greek translation for blue and was used in ancient times to describe any blue stone

Faceted Pyrite Bead Bracelet Gemstone Carvings The most accepted theory asA golden yellow to brown, widely occurring mineral sulfide, FeS2, Pyrite is used as an iron ore and to produce sulfur dioxide for sulfuric acid. It is also known as Fool's Gold because it resembles gold, even though it is harder (H. 5 6) and a paler yellow. Pyrite is often found in quartz veins, sometimes even with gold. Pyrite crystals are common; it may also occur as grains or in masses. It streaks a greenish black and when tarnished, may resemble