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 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 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 Porphyritic Granite Specimen (Igneous Rock) Products for Science Education

For comparing cooling rates between samples with differently-sized crystals. EISCO Porphyritic Granite Specimen (Igneous Rock) is must-have sample when discussing rock types, rock cycle, formation, classification, and identification of igneous rocks.

EISCO Hornfels Specimen (Metamorphic Rock) Products for Science Education

For use in studying effects of thermal alteration of metamorphic rocks. EISCO Hornfels Specimen (Metamorphic Rock) forms in narrow band between an igneous intrusion and surrounding rock. As intrusion propagates through crust, magma scorches and heats crus

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 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 Fine White Marble Specimen (Metamorphic Rock) Products for Science Education

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

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 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 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 Chalk Limestone Specimen (Sedimentary Rock) Products for Science Education

For use as example of sedimentary rock formed chemically. EISCO Chalk Limestone Specimen (Sedimentary Rock) is made up of organic material, mostly calcium carbonate.

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 Granite Specimen (Igneous Rock) Products for Science Education

For comparing cooling rates between samples with differently-sized crystals. EISCO Granite Specimen (Igneous Rock) is must-have sample when discussing rock types, rock cycle, formation, classification, and identification of igneous rocks.

EISCO Rhyolite Specimen (Igneous Rock) Products for Science Education

For use in density comparison with other igneous rocks. EISCO Rhyolite Specimen (Igneous Rock) is aphanitic felsic rock, formed during eruptions of thick, viscous magma.

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 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 Phyllite Specimen (Metamorphic Rock) Products for Science Education

For use in demonstration of metamorphic properties, such as glossy sheen and dense, foliated minerals. EISCO Phyllite Specimen (Metamorphic Rock) is good example of low-grade metamorphism from easily recognizable parent rock.

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

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

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 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 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 Pyrite Mineral Specimen Products for Science Education

For use in replacing other minerals or fossils through pyritization. EISCO Pyrite Mineral Specimen has shiny metallic luster and bright brassy color, making it addition to mineral collections or classroom exercises.

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 Augen Gneiss Specimen (Metamorphic Rock) Products for Science Education

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

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 Physical Properties of Minerals Kit Products for Science Education

For study of color, luster, hardness, crystal habit, streak, specific density. EISCO Physical Properties of Minerals Kit contains 12 specimens and key.

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.

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