Due to its high iron content, magnetite has long been a major iron ore, and is responsible for humans discovering magnetism, and the creation of the compass.

A botryoidal form of the copper or Malachite.

A fibrous form of the copper ore Malachite.

A Manganese Nodule believed to create "dark oxygen" from the Schmidt collection.

If you think this is Iron Pyrite, you are wrong! It is a polymorph of Iron Pyrite.

A rare, uranium bearing mineral.

Andradite is a species of the Garnet group.

Metatorbernite is a rare, radioactive mineral that belongs to the uranium and phosphate mineral group.

A potassium aluminosilicate with minor amounts of sodium.

A lead arsenate chloride mineral, that frequently takes on the shape of other minerals.

Similar in appearance and feel to graphite, molybdenite has a lubricating effect that is a consequence of its layered structure.