Specimens

Oligoclase sample approximately 1" (3cm) in size Standard hardness of 6, exhibits two planes of cleavage Perfect size for use in classroom identif...

Oligoclase sample approximately 1" (3cm) in size Standard hardness of 6, exhibits two planes of cleavage Perfect size for use in classroom identif...

WHITE QUARTZITE | Quartzite is formed from sandstone that has been tightly compressed to the point where the clasts have recrystallized to form a ...

WHITE QUARTZITE | Quartzite is formed from sandstone that has been tightly compressed to the point where the clasts have recrystallized to form a ...

LODESTONE | This naturally magnetized mineral creates it's own magnetic field and can pick up small metal objects. Iron particles cover its surfac...

LODESTONE | This naturally magnetized mineral creates it's own magnetic field and can pick up small metal objects. Iron particles cover its surfac...

Limonite sample approximately 1" (3cm) in size Rusty color indicative of ongoing oxidation Perfect size for use in classroom identification labs a...

Limonite sample approximately 1" (3cm) in size Rusty color indicative of ongoing oxidation Perfect size for use in classroom identification labs a...

LABRADORITE | Labradorite is a variety of plagioclase feldspar, intermediate between anorthite and albite. Notable about this species of feldspar ...

LABRADORITE | Labradorite is a variety of plagioclase feldspar, intermediate between anorthite and albite. Notable about this species of feldspar ...

GARNET | Garnet comes in a variety of colors & shapes - this specimen is a deep red color. Garnet forms under intense heat and pressure condit...

GARNET | Garnet comes in a variety of colors & shapes - this specimen is a deep red color. Garnet forms under intense heat and pressure condit...

DOLOMITE | Though similar to calcite, the inclusion of magnesium in the chemistry of Dolomite makes it a more robust & stable mineral GREAT FO...

DOLOMITE | Though similar to calcite, the inclusion of magnesium in the chemistry of Dolomite makes it a more robust & stable mineral GREAT FO...

CHLORITE | Chlorite is a metamorphic mineral that has undergone light alteration. During metasomatism, phyllosilicate minerals may become hydrated...

CHLORITE | Chlorite is a metamorphic mineral that has undergone light alteration. During metasomatism, phyllosilicate minerals may become hydrated...

CHERT | Sometimes referred to as flint, Chert is a sedimentary rock rich in silica GREAT FOR GEOLOGY CLASSROOMS | This specimen is perfect for tea...

CHERT | Sometimes referred to as flint, Chert is a sedimentary rock rich in silica GREAT FOR GEOLOGY CLASSROOMS | This specimen is perfect for tea...

CHALCOPYRITE | From the same family as fool's gold, Chalcopyrite is a yellow crystalline mineral consisting of a sulfide of copper and iron. It is...

Chalcopyrite sample approximately 1" (3cm) in size Exhibits fracture and has a brassy luster Perfect size for use in classroom identification labs...

APATITE | Apatite is one of the few common phosphate minerals. While often found as an accessory mineral in igneous rock, it is also found as conc...

APATITE | Apatite is one of the few common phosphate minerals. While often found as an accessory mineral in igneous rock, it is also found as conc...

Albite sample approximately 1" (3cm) in size Used as a hardness standard of 6, and exhibits two planes of cleavage Perfect size for use in classro...

Albite sample approximately 1" (3cm) in size Used as a hardness standard of 6, and exhibits two planes of cleavage Perfect size for use in classro...

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

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

FINE WHITE MARBLE | Formed from limestone, this high pressure, low heat alteration leads to a large crystalline rock. Heavily mined for architectu...

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

ANTHRACITE COAL | Anthracite coal is bright and reflective, indicative of the intense heat and pressure required to form it. Anthracite coal often...

Twelve augen gneiss samples approximately 1" (3cm) in size Ideal for students learning about differential stresses and foliation in metamo...

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

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

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

ANTHRACITE COAL | Anthracite coal is bright and reflective, indicative of the intense heat and pressure required to form it. Anthracite coal often...

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

Twelve amphibolite samples approximately 1" (3cm) in size Formed from further pressure and thermal alteration of hornblende, fusing and fo...

FINE WHITE MARBLE | Formed from limestone, this high pressure, low heat alteration leads to a large crystalline rock. Heavily mined for architectu...

Amphibolite sample approximately 1" (3cm) in size Formed from further pressure and thermal alteration of hornblende, fusing and foliating ...

SCORIA | Scoria forms as spatter from bubbly, mafic lava is thrown into the air and cooled quickly. The crystallization happens so quickly that la...

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

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

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 ...

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

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

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

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

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