Pyrite & Quartz Face (From Our Private Collection) Fish Fossils The function of this array

The function of this array of plates and spikes has been the subject of much speculation among scientists

in the western United States and Portugal

They were so numerous that Triceratops teeth are the most commonly fossil found

ground water circulated silica along with the iron

Sulfur has been used for a variety of purposes since the ancient days of China

Pyrite & Quartz Face (From Our Private Collection) Fish Fossils The function of this arrayA 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