Chrysocolla Chalcedony - SOLD 1.863" nasa-mission-flown known to science as the

known to science as the Eromanga Basin

018" Dendraster gibbsii from the San Joaquin Valley deposit

we do have an original NASA cafeteria tray at MMHQ

Their hexagonal patterning allowed these osteoderms to interlock together

Chrysocolla Chalcedony - SOLD 1.863" nasa-mission-flown known to science as theThe brilliant blues of Chrysocolla Chalcedony are always a sight to behold. Owing its color to oxidation in copper, this stone is a rare and beautiful mineral, sought after for its beauty since antiquity. This specimen is a 1. 863" piece of polished Chrysocolla Chalcedony. It comes from Peru and ships with a certificate of authenticity.