20334 - Beautiful 3.51 Inch Pyrite Crystals on Calcite from El Hammam Mine - Morocco Rainbow quartz In this way

In this way

• Devonian of Morocco

Precious collection of two nice teeth of this species of pterosaur

at least 16 maxillary and 12 pterygoid teeth

20334 - Beautiful 3.51 Inch Pyrite Crystals on Calcite from El Hammam Mine - Morocco Rainbow quartz In this wayThe mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula FeS2 (iron(II) disulfide). Pyrite is considered the most common of the sulfide minerals. Pyrite's metallic luster and pale brass yellow hue give it a superficial resemblance to gold, hence the well known nickname of fool's gold. The color has also led to the nicknames brass, brazzle, and Brazil, primarily used to refer to pyrite found in coal.