Eisco, Equipment, Education, Geology
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Fluorite can be transparent or come in a variety of colors, such as purple, green & blue. Fluorite is a common mineral in both carbonate and hydrothermal rocks Fluorite is perfect for hands on lessons in hardness, as well as the fickle method of identifying minerals by color. An excellent example…
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A fun introduction to the world of geology through rocks and minerals. Set includes twelve different rocks and minerals - Crystal Quartz, Basalt, Breccia, Biotite Gneiss, Fluorite, Granite, Conglomerate, Marble, Apatite, Scoria, Sandstone, and Slate. While each specimen will vary in shape and…
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Dust & ash deposited during explosive volcanic eruptions can become compacted and lithified over time, forming large packages of tuff. These layers show a record of the eruptions size & intensity, and allow geologists to estimate the rate of activity Ideal for identification & classification…
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Hematite is made up of iron and oxygen, giving it a distinct red, earthy color. Although hematite can form in a variety of appearances, this mineral is instantly recognized by the reddish brown streak it leaves behind when powdered Ideal for identification & classification exercises. Ideal for…
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The rock cycle explains how different types of rocks relate to one another. This kit includes twelve different rocks which represent the types of rocks that are formed during the rock cycle. Packaged in a box with substantial protective padding for each individual rock to preserve specimens The…
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Pack of 12 Siltstone samples approximately 1" (3cm) in size Clastic sedimentary rock made up of fine silt particles Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Good sample for use in identifying…
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Obsidian, also known as volcanic glass, forms from lava that cools almost immediately upon eruption, usually into water Obsidian shares many physical properties with its major chemical component, quartz, despite looking dissimilar - great for classification exercises. This set of twelve samples is…
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Apatite is one of the few common phosphate minerals. While often found as an accessory mineral in igneous rock, it is also found as concretions or detrital clasts in sedimentary rocks With a standard Mohs hardness of 5, and it's relatively uncommon crystal habit, Apatite is excellent for…
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Phyllite is a good example of low-grade metamorphism from an easily recognizable parent rock. The fissile property of slate is retained, but has attained a glossy sheen and soapy feel more indicative of metamorphic material Ideal for identification & classification exercises. Demonstrates…
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Formed from limestone, this high pressure, low heat alteration leads to a large crystalline rock. Heavily mined for architecture, marble is also used for buildings and furniture While denser than limestone, marble is still effervesce in acid, making this metamorphic rock useful in identification…
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Gabbro is formed within magma chambers, deep within the earth. The chambers hold iron-rich rock melt, too heavy to reach the surface. As the melt cools, olivine and plagioclase feldspar forms A great example of phaneritic mafic rock. Useful for exercises in identification and classification of…
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Slate is very lightly metamorphosed and well-foliated. This appearance often makes it difficult to distinguish from its parent rock, shale. The two can be told apart by the difference in pitch when struck Ideal for identification & classification exercises. Slate is perfect for lessons on…
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Pumice is formed from the frothy lava that a volcanic explosion creates. As the frothy lava cools, it hardens as a light weight rock that is filled with small gas bubbles. Because this rock is so porous and light, it can actually float on water Perfect for demonstrating the effect of vesicles on…
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One of the most abundant minerals on Earth. The tightly packed framework of silica tetrahedral that makes up this mineral gives it a high hardness of 7, a lack of cleavage planes, and a distinct euhedral crystal habit A must-have mineral for any specimen collection. Milky Quartz is useful during…
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A fun way to explore the variety of techniques that geologists use to identify rocks and minerals Test mineral hardness, streak color, magnetic properties, appearance, and effervescence to identify different minerals and mineral content within rock specimens Includes seven essential tools -…
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The large clasts in conglomerate indicate that the pieces of rock underwent a large amount of rolling, bouncing, and other weathering to become round. This implies deposition in a river far from the source of the clasts Ideal for teaching students about rounding and sorting, as well as for…
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The massive, gray variety of limestone is often found deposited in marine environments. It is made up of organic material, primarily calcium carbonate Excellent for demonstrating the tendency of calcium carbonate to effervesce in acid, and is perfect for identification and classification…
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A fun introduction to the world of geology through igneous rocks! Igneous rocks are formed when magma or lava cools and solidifies. Each Tech Cut specimen is selected and hand processed, ensuring each sample exhibits defining features. Set includes twelve different igneous rocks - Quartz Point,…
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Magnetite forms as an accessory mineral from an igneous melt. As it cools, the iron in its atomic structure becomes magnetized Magnetite's attraction to magnets and distinctive black streak make it an excellent tool for identification exercises. This set of twelve samples is excellent for group…
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Muscovite mica is a mineral that forms from cooling magma. It forms in thin sheets that are individually weak, but comprehensively strong. Mica is a major component in a plethora of different rocks, including igneous, sedimentary, and metamorphic rocks Mica's thin and layered structure is perfect…
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12 rock gypsum specimens approximately 1" (3cm) in length Formed from the lithification of sulfate evaporate deposits Perfect size for use in classroom identification labs and exercises, corresponding well with Next Generation Science Standards evidence statements Useful for rock/mineral…
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Includes twelve streak plates. Great for group activities Used to determine a mineral's color in powder form, or to identify the mineral content of a rock. Great for geology and earth science classrooms Streak plates can be cleaned and reused again and again Each plate is made of unglazed…
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Rhyolite is an aphanitic felsic rock which forms during eruptions of thick, viscous magma. Often containing phenocrysts of felsic minerals with only slightly higher crystallization temperatures than the feldspar and quartz that forms rhyolite Ideal for identification & classification exercises.…
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Complete kit includes nine mineral samples and testing tools A fun way to explore the variety of techniques that geologists use to identify rocks and minerals Test mineral hardness, streak color, magnetic properties, appearance, and effervescence to identify different minerals and mineral content…
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Pack of 12 Chlorite samples approximately 1" (3cm) in size Platy metamorphic mineral with a soapy feel Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Forms when hot water alters the chemistry of an…
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Oolitic limestone is a carbonate rock formed from the cementation of thousands of ooids. Ooids are tiny nodules formed from the accumulation of carbonate material around a nucleus. When cemented together and lithified, these ooids can form rock. Oolitic limestone forms in reef or lagoon…
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Pack of 12 Limonite samples approximately 1" (3cm) in size Rusty color indicative of ongoing oxidation Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Also known as goethite Specimens come in clear,…
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Basalt makes up a large majority of the earth's oceanic crust. Formed quickly from a magma that is rich in iron, basalt exhibits a dark color and small crystal size The perfect example of an aphanitic igneous rock. Useful for lessons in igneous rock classification and identification. This set of…
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Though similar to calcite, the inclusion of magnesium in the chemistry of Dolomite makes it a more robust & stable mineral Ideal for learning about physical and chemical properties. Great for having students compare with calcite - a challenging but beneficial exercise. This set of twelve samples…
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Calcite is made up of calcium carbonate. It can grow into rocks, animal shells, chalk, & translucent, rhombic minerals Being one of just a few minerals that is effervesce in acid, Calcite is great for demonstrating chemical reactions. This universally useful mineral can also be used to demonstrate…
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A metamorphic rock that has undergone moderate levels of alteration, schist is good for demonstrating the effect of metamorphism on various minerals Ideal for identification & classification exercises. Schist is great rock for demonstrating foliation & metamorphic rock properties. This set of six…
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Pack of 12 Dolostone samples approximately 1" (3cm) in size Raw carbonate rock deposited and lithified out of solution Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Often used as an ingredient in…