Mexican Aragonite Xiphactinus Aguja Formation

Aguja Formation

(Brachylophosaurus or Maiasaura)

and the most commonly excavated fossil fish in the world

is the common name for a extinct

67% nickel

Mexican Aragonite Xiphactinus Aguja FormationApprox. dimensions: 6. 5" x 5" x 2. 5" Aragonite is a common carbonate mineral. It is unfortunately often thought of as the poor cousin to calcite. But aragonite is an interesting and attractive mineral in its own right. It forms interesting habits and can have a soft pretty color. Its modes of formation and relationship to calcite are both curious and intriguing. Aragonite is a polymorph of calcite, which means that it has the same chemistry as