Rhodochrosite
Formula: MnCO3
Distinctive Element(s): Manganese
Interactive Rotation:
Photos by Nick Mann / Theodore Gray
Aragonite
CaCO3 (Calcium Carbonate)
Rotation:
Crocoite
Formula: PbCrO4
Elbaite Tourmaline (Rubellite)
In lepidote matrix, from Minas Gerais, Brazil, about 120mm in width.
Color comes from trace manganese (Mn).
This is from the Field Museum’s Hall of Gems.
360° Rotation (Grab to Spin)
Hero Frame
Fossilized Opal
Fossilized plesiosaur vertebrae. Found in Australia. Now in the Field Museum on display in the Hall of Gems.
The plesiosaur was a large, “Loch Ness Monster”-like marine reptile that lived during the Mesozoic.
GIF
