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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...
This rock formed at the bottom of a marine environment through the compaction of deceased organic matter in a clay or silt cement Ideal for identification & classification exercises, for studying fossils within whole rocks and sedimentary rocks. This set of six samples is excellent for group study...
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...
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 kit...
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, labeled...
Pack of 12 Coquina samples approximately 1" (3cm) in size Mass of fossilized animal material Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Individual fossils can be studied and identified within the rock...
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 mineralogy...
Pack of 12 Gypsum samples approximately 1" (3cm) in size Great for learning about mineral hardness - gypsum is soft enough to be scratched by a fingernail Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements...
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. Quartz is useful during lessons...
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...
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...
Pack of 12 Diorite samples approximately 1" (3cm) in size Presence of both mafic and felsic minerals make diorite a perfect example of intermediate igneous chemistry Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence...
Pack of 12 Quartzite samples approximately 1" (3cm) in size The further compaction of sandstone's sturdy silicate framework makes quartzite one of the most durable rocks on the planet Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science...
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. The...
Slate is the result of the compression of shale, but is denser and retains the fissile properties, making for an interesting exercise when distinguishing between the two rocks Ideal for exercises in metamorphic rock identification due to its recognizable platy foliation. This set of twelve samples...
Coal is formed within anoxic environments from compressed organic matter, and a worldwide source of fuel. Its vitreous sheen makes Bituminous Coal easy to distinguish from other coals and sedimentary rocks Allows students to get a close up look at a material that powers the world. Excellent for...