Rock and Mineral Specimens and Collections
Eisco™ Sphalerite Mineral Specimen
Sphalerite is a sulfide often mined for its zinc content and is typically associated with other sulfide minerals such as pyrite and chalcopyrite.
Eisco™ Andesite Specimen
Andesite Specimen for introduction to igneous rock classification and identifying minerals within igneous rocks.
Eisco™ Pumice Specimen
Pumice is formed quickly during volcanic eruptions around pockets of air within lava.
Eisco™ Greywacke Sedimentary Rock Specimen
Graywacke is a sedimentary rock composed of large, angular clasts within a fine-grained clay matrix. Formed during underwater avalanches, these rocks are often found on distal ocean shelves.
Eisco™ Limonite Mineral Specimen
Limonite, also known as goethite, is an iron hydroxide mineral, a chemistry that is apparent from the mineral's rusty ochre color. This mineral was used extensively as pigment for yellow, red, and orange dyes, going back all the way to Neolithic cave paintings.
Eisco™ White Quartzite, Metamorphic Rock Specimen - Hand Sample - Approx. 3 Inch
Quartzite is formed from sandstone that has been tightly compressed to the point where the clasts have recrystallized to form a new rock. This formation mechanism, coupled the inherent strength of quartz, makes quartzite a very durable rock.
Eisco™ Raw Fluorite, Mineral Specimen - Hand Sample - Approx. 3 Inch
Fluorite Mineral Specimen is used in classroom identification lab exercises and for study of uncommon 4-plane cleavage pattern.
Eisco™ Syenite Igneous Rock Specimen
Syenite is a variety of felsic igneous rock heavily composed of feldspar. Though formed similarly to granite, the higher aluminum content of syenite indicates a more evolved magma.
Eisco™ Argillaceous Shale Specimen
Argillaceous Shale Specimen is formed from cementation and lithification of very small grains of rock, commonly mud or clay.
Eisco™ Raw Andesite, Igneous Rock Specimen - Approx. 3 Inch
Andesite Specimen for introduction to igneous rock classification and identifying minerals within igneous rocks.
Eisco™ Red Slate Metamorphic Rock Specimen
Red slate is a very lightly metamorphosed and well-foliated specimen. It can be distinguished from it's parent rock (Shale) by the difference in pitch when struck.
Eisco™ Raw Fossiliferous Limestone, Sedimentary Rock Specimen - Approx. 3 Inch
Fossiliferous Limestone Specimen for sedimentary rock identification and studying fossils within whole rocks.
Eisco™ Microcline Feldspar Mineral Specimen
Microcline Feldspar Mineral Specimen for use in study of physical properties like hardness, cleavage, and crystallization temperature.
AquaPhoenix Scientific Biotite Mica
Explore the dark, flaky sheets of biotite mica with this 10-pack of 0.75 to 1 in. samples—perfect for mineral identification and classroom geology kits.
AquaPhoenix Scientific Sandstone
This small sandstone specimen showcases classic sedimentary layering—ideal for teaching weathering, erosion, and rock classification.