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Amber
Fossilized resin with insects or plants
Ammonites
Extinct cephalopod mollusks
Crustaceans
Crabs, shrimps, and other fossil arthropods
Amphibians and Reptiles
Pieces of sauropsids, crocodiles, and turtles
Teeth
Shark teeth and other fish
Dinosaurs
Very well preserved fossil pieces
Echinoderms
Sea urchins, starfish and other fossils
Insects
Very well preserved and well defined fossil insects
Mammals
Fossils of mammuthus, whales, bears, bison ...
Other Fossils
Rare, scarce and diverse classification fossils
Fish
Fossils of fish, vertebrae, fins and teeth
Paleobotany
Fossilized leaves, trunks, conifers, ferns and pineapples
Trilobites
Large collection of fascinating fossil trilobites
Special
Unique and special collectible fossils
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Piece of ± 9.8 x 5.7 cm and 86 grams. The piece is sectioned because this mineral is found within arsenic and copper.
Mohawkite is a rare mineral consisting of a mixture of arsenic and copper, mainly in the form of arsenide, and is usually found in the matrix of white quartz. Its formula varies from Cu3As to Cu6As, also called cottonite.
Mohawk Mine, Keweenaw Peninsula, Michigan, USA