Mexican Fire Opal Pendant - SOLD 0.928" rockinaboxpaleolithic 54" phytosaur fossil scute uncovered

54" phytosaur fossil scute uncovered from the Redonda formation in New Mexico

707" Devonian Period trilobite fossil

displaying a beautiful Widmanstätten pattern

it is a Nickel/Iron alloy so it is susceptible to rust should the coating wear off

This specimen is a fragment of mission-flown kapton foil which provided thermal protection for the astronauts aboard the Apollo 13 Command Module

Mexican Fire Opal Pendant - SOLD 0.928" rockinaboxpaleolithic 54" phytosaur fossil scute uncoveredMexican fire opal is a glassy, sometimes transparent variety of opal best known from Quertaro in the south of the country. Like other opals, the gemstone forms from silica rich water filtering through porous sandstone, depositing the mineral to be heated and pressurized into the beautiful gem. Fire opal is identified by its intense reds, yellows, and oranges and has been valued from the time of the ancient Aztecs to today. This pendant contains a