Rock and Mineral Specimens and Collections
Eisco™ Siltstone Specimen
Siltstone Specimen is a clastic rock made up of small, nearly microscopic grains of silt.
Eisco™ Oolitic Limestone Specimen (Sedimentary Rock)
Oolitic limestone is a carbonate rock formed from the cementation of thousands of ooids.
Eisco™ Diorite Specimen
Diorite Specimen straddles the line between mafic and felsic rock chemistry.
Eisco™ Mohs Hardness Kit
This Tech Cut Mohs Hardness Kit includes 8 specimens with streak plates.
Eisco™ Pegmatite Igneous Rock Specimen
Pegmatite is an igneous rock that contains two vastly different crystal sizes. This combination of both phaneritic and aphanitic crystals indicates this rock formed at two vastly different cooling rates.
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™ 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™ Coquina Sedimentary Rock Specimen
Composed of bone and shell fragments, coquina is nearly 100% fossil matter. Held together by a carbonate cement, this skeletal mass forms in low-energy environments such as lagoons and reefs.
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™ Raw Fossiliferous Limestone, Sedimentary Rock Specimen - Approx. 3 Inch
Fossiliferous Limestone Specimen for sedimentary rock identification and studying fossils within whole rocks.
Eisco™ Phyllite Specimen
Phyllite Specimen for demonstrations of metamorphic properties, such as glossy sheen and dense, foliated minerals.
Eisco™ Mica Schist Specimen
Mica Schist Specimen for use in lessons on metamorphic rock properties, classification, and identification.
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™ Raw Phyllite, Metamorphic Rock Specimen - Approx. 3 Inch
Phyllite Specimen for demonstrations of metamorphic properties, such as glossy sheen and dense, foliated minerals.
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.