Newest Products

GARNET SCHIST | A metamorphic rock that has undergone moderate levels of alteration, schist is good for demonstrating the effect of metamorphism o...

BITUMINOUS COAL | Coal is formed within anoxic environments from compressed organic matter, and a worldwide source of fuel. Its vitreous sheen mak...

MICROCLINE | One of the most common minerals in the earth's crust, feldspar has a variety of physical properties that make it a quintessential min...

Argillaceous shale sample approximately 1" (3cm) in size Small clast size indicates deposition in a low-energy environment such as a shallow lake ...

CONGLOMERATE | The large clasts in conglomerate indicate that the pieces of rock underwent a large amount of rolling, bouncing, and other weatheri...

PORPHYRITIC GRANITE | Granite forms slowly in shallow or evolved magma chambers, and is also commonly found as magmatic intrusions in the crust. T...

OLIVINE | Much of the earth's surface is covered in oceanic crust, of which olivine is a major component. With the highest crystallization tempera...

FLUORITE | Fluorite can be transparent or come in a variety of colors, such as purple, green & blue. Fluorite is a common mineral in both carb...

COARSE WHITE MARBLE | Marble is a metamorphic rock formed from limestone. The high-pressure, low-heat alteration leads to a massive crystalline ro...

VOLCANIC TUFF | Dust & ash deposited during explosive volcanic eruptions can become compacted and lithified over time, forming large packages ...

MAGNETITE | Magnetite forms as an accessory mineral from an igneous melt. As it cools, the iron in its atomic structure becomes magnetized GREAT F...

SOAPSTONE | Through the process of metasomatism, hot fluid infiltrates the atomic structure of other silicate minerals, altering them to form soap...

WHITE SANDSTONE | White Sandstone is a recognizable sedimentary rock made up of well sorted and rounded grains of quartz, indicating that the clas...

OBSIDIAN | Obsidian, also known as volcanic glass, forms from lava that cools almost immediately upon eruption, usually into water GREAT FOR GEOLO...

GRAY LIMESTONE | The massive, gray variety of limestone is often found deposited in marine environments. It is made up of organic material, primar...

PHYLLITE | Phyllite is a good example of low-grade metamorphism from an easily recognizable parent rock. The fissile property of slate is retained...

GYPSUM | A sulfate mineral that often forms from evaporating lakes in what is known as an evaporite deposit. Crystals grow into soft, wide sheets,...

Twelve arkose samples approximately 1" (3cm) I size Small, angular grains indicate deposition in an ephemeral river system near to the cla...

CALCITE | Calcite is made up of calcium carbonate. It can grow into rocks, animal shells, chalk, & translucent, rhombic minerals GREAT FOR GEO...

BIOTITE GNEISS | This foliated metamorphic rock usually forms at convergent plate boundaries, and recrystallizes with immense heat and pressure GR...

LIMESTONE CHALK | Limestone is made up of organic material, primarily calcium carbonate. The chalk variety consists of the shells of coccolithopho...

VOLCANIC TUFF | Dust & ash deposited during explosive volcanic eruptions can become compacted and lithified over time, forming large packages ...

QUARTZ | One of the most abundant minerals on Earth. The tightly packed framework of silica tetrahedral that makes up this mineral gives it a high...

Arkose sample approximately 1" (3cm) in size Small, angular grains indicate deposition in an ephemeral river system near to the clast sour...

SLATE | Slate is the result of the compression of shale, but is denser and retains the fissile properties, making for an interesting exercise when...

Siltstone sample approximately 1" (3cm) in size Clastic sedimentary rock made up of fine silt particles Perfect size for use in classr...

Twelve siltstone samples approximately 1" (3cm) in size Clastic sedimentary rock made up of fine silt particles Perfect size for use i...

GRAPHITE | The same material found in pencils- graphite. This lustrous mass of carbon is an excellent example of how atomic structure can complete...

RED SANDSTONE | Sandstone is made up of well-sorted and well-rounded grains of quartz. This indicates that the clasts in the rocks have traveled a...

MICROCLINE | One of the most common minerals in the earth's crust, feldspar has a variety of physical properties that make it a quintessential min...

OLIVINE | Much of the earth's surface is covered in oceanic crust, of which olivine is a major component. With the highest crystallization tempera...

CALCITE | Calcite is made up of calcium carbonate. It can grow into rocks, animal shells, chalk, & translucent, rhombic minerals GREAT FOR GEO...

ANDESITE | Andesite features abundant phenocrysts in a fine grained matrix, and offers a great demonstration of igneous porphyry GREAT FOR GEOLOGY...

RED SANDSTONE | Sandstone is made up of well-sorted and well-rounded grains of quartz. This indicates that the clasts in the rocks have traveled a...

Twelve quartzite samples approximately 1" (3cm) in size The further compaction of sandstone's sturdy silicate framework makes quartzite on...

Augen gneiss sample approximately 1" (3cm) in size Ideal for students learning about differential stresses and foliation in metamorphic ro...

MILKY QUARTZ | One of the most abundant minerals on Earth. The tightly packed framework of silica tetrahedral that makes up this mineral gives it ...

Hornfels sample approximately 1" (3cm) in size Formed at the baked contact between an intruding igneous body and the surrounding rock ...

RHYOLITE | Rhyolite is an aphanitic felsic rock which forms during eruptions of thick, viscous magma. Often containing phenocrysts of felsic miner...

SOAPSTONE | Through the process of metasomatism, hot fluid infiltrates the atomic structure of other silicate minerals, altering them to form soap...

AUGITE | A common rock-forming pyroxene mineral that forms as magma is cooling. It is an imperative sample for lessons on Bowen's reaction series ...

HEMATITE | Hematite is made up of iron and oxygen, giving it a distinct red, earthy color. Although hematite can form in a variety of appearances,...

Pack of 12 Argillaceous shale samples approximately 1" (3cm) in size Small clast size indicates deposition in a low-energy environment such as a s...

GYPSUM | A sulfate mineral that often forms from evaporating lakes in what is known as an evaporite deposit. Crystals grow into soft, wide sheets,...

BIOTITE MICA | Found within igneous and metamorphic rocks. Biotite mica's sheet like appearance and glassy luster make this mineral easy to identi...

Quartzite sample approximately 1" (3cm) in size The further compaction of sandstone's sturdy silicate framework makes quartzite one of the...

PYRITE | Pyrite forms as hot water flows through fractures in subsurface rock. This deposition method allows pyrite to replace other minerals or f...

CARBONACEOUS SHALE | Shale is formed from the cementation and lithification of very small grains of rock, commonly mud or clay. The black color of...