Rock and Mineral Specimens and Collections
Eisco™ Fossiliferous Limestone Specimen
Fossiliferous Limestone Specimen for sedimentary rock identification and studying fossils within whole rocks.
Eisco™ Conglomerate Specimen
Conglomerate Specimen has large clasts that indicate that pieces of rock underwent large amount of rolling, bouncing, and other weathering to become round.
Eisco™ Quartz Mineral Specimen
Quartz mineral specimen for use in classroom identification labs and exercises.
Eisco™ Microcline Feldspar Mineral Specimen
Microcline Feldspar Mineral Specimen for use in study of physical properties like hardness, cleavage, and crystallization temperature.
Eisco™ Muscovite Mica Mineral Specimen
Muscovite Mica Mineral Specimen forms in thin sheets that are individually weak, but comprehensively strong.
Eisco™ Magnetite Mineral Specimen
Magnetite grains align themselves with the earth's magnetic field, preserving a record of the field's direction when forming igneous rocks.
Eisco™ Sandstone Specimen
Sandstone Specimen is made up of well-sorted and well-rounded grains of quartz.
Eisco™ Pumice Specimen
Pumice is formed quickly during volcanic eruptions around pockets of air within lava.
Eisco™ Bituminous Coal Specimen
Bituminous Coal is formed in anoxic environments from compressed organic matter, and is used worldwide as a fuel source.
Eisco™ Scoria Specimen
Scoria forms when spatter from bubbly mafic lava cools quickly.
Eisco™ Siltstone Specimen
Siltstone Specimen is a clastic rock made up of small, nearly microscopic grains of silt.
Eisco™ Diorite Specimen
Diorite Specimen straddles the line between mafic and felsic rock chemistry.
Eisco™ Raw Chlorite, Metamorphic Mineral Specimen - Approx. 3 Inch
Chlorite is a metamorphic mineral that has undergone light alteration. During metasomatism, phyllosilicate minerals may become hydrated and form chlorite.
Eisco™ Apatite Mineral Specimen
Apatite Mineral Specimen ideal for use in lessons about the Mohs hardness scale.
Eisco™ Dolomite Mineral Specimen
Dolomite is similar to calcite but includes magnesium in its chemistry, which makes it a more robust and stable mineral.