Rock and Mineral Specimens and Collections
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™ Raw Phyllite, Metamorphic Rock Specimen - Approx. 3 Inch
Phyllite Specimen for demonstrations of metamorphic properties, such as glossy sheen and dense, foliated minerals.
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™ Loadstone Mineral Specimen
Loadstone is a naturally magnetized mineral that creates it's own magnetic field and can pick up small metal objects. Iron particles cover its surface.
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™ 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™ Green Slate Metamorphic Rock Specimen
Green 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™ Porphyritic Granite Specimen
Porphyritic Granite Specimen is a must-have sample when discussing rock types, rock cycle, formation, classification, and identification of igneous rocks.
Eisco™ Dolostone Sedimentary Rock Specimen
Dolostone is a lithified form of dolomite. Composed primarily of carbonate material, dolostone is a more stalwart rock than its chemical cousin, limestone. It is often mined for construction and infrastructure purposes.
Eisco™ Raw Fossiliferous Limestone, Sedimentary Rock Specimen - Approx. 3 Inch
Fossiliferous Limestone Specimen for sedimentary rock identification and studying fossils within whole rocks.
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 Quartz, Rose
A pink rose quartz sample measuring 1 to 1.25 inches, perfect for geology lessons, crystal studies, or classroom rock collections.
AquaPhoenix Scientific Corundum
This 1 to 1.25 inches corundum specimen is an excellent example of one of the hardest minerals on Earth—perfect for classroom use and hardness testing.
AquaPhoenix Scientific Pink Feldspar
Naturally pink feldspar with visible crystal structure—used to teach mineral properties, rock classification, and Earth science fundamentals.
