20323 - Beautiful 1.97 Inch Pyrite Crystals from famous Navajun Mines (Spain) Basilosaurus Jaws Unique and extremely rare specimen

Unique and extremely rare specimen

offshore (2)

Although in their alveoli

Amazing plate with three specimens of this new species of the genus Syphysurus published very recently

There seem to be 1 more specie in Couche IV- in sidi chenane

20323 - Beautiful 1.97 Inch Pyrite Crystals from famous Navajun Mines (Spain) Basilosaurus Jaws Unique and extremely rare specimenThe 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.