Education Geology

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...

White Sandstone is a recognizable sedimentary rock made up of well sorted and rounded grains of quartz, indicating that the clasts in the rocks have traveled a long distance from their source and experienced heavy erosion along the way Perfect for lessons in identification and classification of...

Concrete is a versatile and widely-used construction material composed of a mixture of cement, water, aggregates (such as sand, gravel, or crushed stone), and sometimes additives or admixtures. Its exceptional strength and durability make it a preferred choice for a variety of construction...

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...

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...

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,...

This specular variety of hematite takes the form of tiny, sparkling iron oxide crystals Perfect for demonstrations in mineral physical properties. This set of six samples is excellent for group study and examination Each specimen is selected and hand processed, ensuring each sample exhibits defining...

Peridotite is an iron-rich ultramafic rock, with a chemistry that suggests genesis from a point deep within the crust, possibly as deep as the mantle. The large crystals indicate slow cooling within a magma chamber Ideal for identification & classification exercises. This fascinating sample is...

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...

Commonly found as magmatic intrusions in the crust, granite forms slowly in shallow or evolved magma chambers. The large crystals are indicative of a slow cooling rate, and make mineral identification simple Ideal for identification & classification exercises. This classic igneous rock is a...

Pack of 12 Corundum samples approximately 1" (3cm) in size Great for studying mineral hardness and crystal habit - only diamond is harder! Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Ideal for exercises...

A fun introduction to the world of geology through sedimentary rocks! Sedimentary rocks are formed by the deposition and compression of particles of other rocks and minerals. Each Tech Cut specimen is selected and hand processed, ensuring each sample exhibits defining features. Set includes twelve...

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...

Much of the earth's surface is covered in oceanic crust, of which olivine is a major component. With the highest crystallization temperature, olivine is the first mineral to form in a magma, making it a useful geothermometer Ideal for identification & classification exercises, and is great for...

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 Oligoclase samples approximately 1" (3cm) in size Standard hardness of 6, exhibits two planes of cleavage Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Feldspar with high levels of sodium...

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...

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...

Pack of 12 Sulfur samples approximately 1" (3cm) in size Great for students learning about streak tests - sulfur leaves an unexpected white streak Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Ideal for...

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 comparison...

Pyrite forms as hot water flows through fractures in subsurface rock. This deposition method allows pyrite to replace other minerals or fossils through pyritization. Also known as Fool's Gold, this brassy, metallic mineral is often mistaken for gold Excellent for exercises in identification and...

Halite is commonly known as table salt. This soft, white to transparent mineral grows into cleavable cubes Useful for lessons in cleavage planes and how evaporite deposits form in nature. This mineral is an excellent example of cubic cleavage - when broken Halite will continually break into smaller...

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...

Found within igneous and metamorphic rocks. Biotite mica's sheet like appearance and glassy luster make this mineral easy to identify Mica's thin and layered structure is perfect for demonstrating variable hardness and cleavage, physical properties of minerals, as well as Bowen's reaction series....