Browse Items · University of Arkansas Museum

Actinolite

Dark green mass of radiating columnal aggregates of actinolite crystals in a quartz matrix.

Tags: California, Geology, North America, Rocks and Minerals, United States

One specimen of green, radiating, columnar, aggregate crystals of actinolite.

Tags: Geology, Massachusetts, North America, Rocks and Minerals, United States

Small, cut and polished piece of a banded light to dark gray and light reddish-brown agate.

Tags: Brown, Colorado, Geology, Gray, North America, Red, Rocks and Minerals, United States

One specimen of light reddish-brown agate with numerous patches of black dendrites.

Tags: Geology, Kansas, North America, Rocks and Minerals, United States

Algae fossil

Tags: Brown, Fossils, Geology, Gray, Kansas, North America, Pennsylvanian, Plants, United States, Yellow

Algae fossil.

Tags: Fossils, Geology, Gray, Mississippian, Missouri, North America, Plants, United States

Tags: Animals, North America, Reptiles, United States, Zoology

Tags: Animals, North America, Reptiles, United States, Zoology

Tags: Animals, North America, Reptiles, United States, Zoology

Large specimen of dark purple amethyst quartz crystals.

Tags: Canada, Geology, North America, Ontario, Purple, Rocks and Minerals