Geology Educational Materials

EISCO Scoria Specimen (Igneous Rock) Products for Science Education

For use in lessons on eruption style and cooling rate. EISCO Scoria Specimen (Igneous Rock) forms as spatter from bubbly, mafic lava is thrown into air and cooled quickly.

EISCO Limestone Specimen (Sedimentary Rock) Products for Science Education

For use in demonstrating tendency of calcium carbonate to effervesce in acid. EISCO Limestone Specimen (Sedimentary Rock) is made up of organic material, mostly calcium carbonate.

EISCO Volcanic Tuff Specimen (Igneous Rock) Products for Science Education

For use in exercises in igneous rock classification. EISCO Volcanic Tuff Specimen (Igneous Rock) is formed by ash and dust deposited during explosive volcanic eruptions that eventually become compacted and lithified, forming large packages of tuff. These

EISCO Breccia Specimen (Sedimentary Rock) Products for Science Education

For use in learning sedimentary rock classification and identification. EISCO Breccia Specimen (Sedimentary Rock) has large, angular clasts making it possible to confidently ascertain depositional history of rock.

EISCO Talc Mineral Specimen Products for Science Education

For use in study of mineral hardness as its softness contrasts well with harder mineral such as quartz. EISCO Talc Mineral Specimen is at bottom of Mohs scale of hardness, and has distinct soapy feel.

EISCO Quartzite Specimen (Metamorphic Rock) Products for Science Education

For use in comparing with sandstone and metamorphic classification exercises. EISCO Quartzite Specimen (Metamorphic Rock) is formed by applying significant pressure to sandstone. Because of its durable nature, quartzite is often used in paleoclimate studi

EISCO Fossiliferous Limestone Specimen (Sedimentary Rock) Products for Science Education

For use in studying fossils within whole rocks and sedimentary rock identification. EISCO Fossiliferous Limestone Specimen (Sedimentary Rock) is made up of organic material, mostly CaCO3.

EISCO Hematite Mineral Specimen Products for Science Education

For use in identification exercises and demonstrations. EISCO Hematite Mineral Specimen is made up of iron and oxygen, giving it distinct red, earthy color.

EISCO Muscovite Mica Mineral Specimen Products for Science Education

For use in study of variable hardness and cleavage. EISCO Muscovite Mica Mineral Specimen forms in thin sheets that are individually weak, but comprehensively strong.

EISCO Augite (Pyroxene Mineral) Specimen Products for Science Education

For study on 2-plane, 90° cleavage. EISCO Augite (Pyroxene Mineral) Specimen is used in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements.

EISCO Slate Specimen (Metamorphic Rock) Products for Science Education

For use in metamorphic classification and identification exercises. EISCO Slate Specimen (Metamorphic Rock) forms from compression of shale. Though slate is denser, it retains the fissile properties of shale, making distinguishing between the two useful a

EISCO Amphibolite Specimen (Metamorphic Rock) Products for Science Education

For use in studying hydrothermal alteration of rocks and minerals. EISCO Amphibolite Specimen (Metamorphic Rock) is formed from hornblende that has undergone significant amount of differential pressure.

EISCO Hornblende (Amphibole Mineral) Specimen Products for Science Education

For use in studying both igneous and metamorphic rocks. EISCO Hornblende (Amphibole Mineral) Specimen is part of group of minerals known as amphiboles, which are chemically and structurally similar to pyroxenes, but include water in their atomic structure

EISCO Calcite Mineral Specimen Products for Science Education

For use in lessons on chemical reactions. EISCO Calcite Mineral Specimen is used in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements.

EISCO Diorite Specimen (Igneous Rock) Products for Science Education

For use in lessons in bulk chemistry. EISCO Diorite Specimen (Igneous Rock) straddles line between mafic and felsic rock chemistry. The minerals within diorite can be readily identified due to their large size.

EISCO Graphite (Pure Carbon) Specimen Products for Science Education

For use in classroom identification labs and exercises. EISCO Graphite (Pure Carbon) Specimen correlates well to Next Generation Science Standards Evidence Statements.

EISCO Biotite Gneiss Specimen (Metamorphic Rock) Products for Science Education

For use in learning about differential stresses and foliation in metamorphic rocks. EISCO Biotite Gneiss Specimen (Metamorphic Rock) is high-grade metamorphic rock formed from other rocks undergoing alteration from intense heat and pressure.

EISCO Carbonaceous Shale Specimen (Sedimentary Rock) Products for Science Education

For use in sedimentary rock identification exercises due to its recgonizable fissile habit. EISCO Carbonaceous Shale Specimen (Sedimentary Rock) is formed from cementation and lithification of very small grains of rock, commonly mud or clay.

EISCO Olivine Mineral Specimen Products for Science Education

For use in classroom to teach students about mineral physical properties like hardness, fracture, and luster. EISCO Olivine Mineral Specimen is a useful geothermometer.

EISCO Coarse White Marble Specimen (Metamorphic Rock) Products for Science Education

For use in classroom activities to ascertain differences between metamorphic rocks and their provenance. EISCO Coarse White Marble Specimen (Metamorphic Rock) is formed from limestone. High-pressure, low-heat alteration leads to massive crystalline rock t

EISCO Bituminous Coal Specimen (Sedimentary Rock) Products for Science Education

For use in lessons about unique anoxic conditions under which bituminous coal was formed. EISCO Bituminous Coal Specimen (Sedimentary Rock) is formed in anoxic environments from compressed organic matter, and is used worldwide as a fuel source.

EISCO Arkose Sandstone Specimen (Sedimentary Rock) Products for Science Education

For use in identification and depositional history exercises. EISCO Arkose Sandstone Specimen (Sedimentary Rock) is clastic sedimentary rock made up of angular, poorly-sorted sand-size grains.

EISCO Sulfur Mineral Specimen Products for Science Education

For use in classroom for mineral identification exercises due to instantly recognizable physical properties. EISCO Sulfur Mineral Specimen has distinct smell and unusual streak color.

EISCO Halite Mineral Specimen Products for Science Education

For use in classroom for teaching students about cleavage planes and how evaporate deposits form. EISCO Halite Mineral Specimen is a soft, white to translucent mineral that grows into cleavable cubes.

EISCO Microcline Feldspar Mineral Specimen Products for Science Education

For use in study of physical properties like hardness/cleavage/crystallization temperature. EISCO Microcline Feldspar Mineral Specimen has variety of physical properties, hardness of 6 on Mohs scale and distinctly shows two planes of cleavage.

EISCO Mica Schist Specimen (Metamorphic Rock) Products for Science Education

For use in lessons on metamorphic rock properties, classification, and identification. EISCO Mica Schist Specimen (Metamorphic Rock) has undergone moderate levels of alteration. Schist is good for demonstrating effect of metamorphism on various minerals a

EISCO Gypsum Mineral Specimen Products for Science Education

For use in study of cleavage and fracture as example of imperfect cleavage planes. EISCO Gypsum Mineral Specimen often forms from evaporating lakes. Crystals grow in soft, wide sheets, but is also commonly found filling veins and fractures in other rocks.

EISCO Basalt Specimen (Igneous Rock) Products for Science Education

For use in introduction to igneous rock classification and identification. EISCO Basalt (Igneous Rock) makes up vast majority of earth's oceanic crust. Formed quickly from an iron-rich magma, basalt exhibits dark color and small crystal size.

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