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Specimens

Eisco Oligoclase Specimen, 3cm in size, Pack of 12

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

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ESNG0075PK12

Eisco Pegmatite Specimen, 3cm in size

Pegmatite sample approximately 1" (3cm) in size Igneous rock containing a large variety of crystal sizes Perfect size for use in classroom identif...

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ESNG0083

Eisco Pegmatite Specimen, 3cm in size, Pack of 12

Pegmatite sample approximately 1" (3cm) in size Igneous rock containing a large variety of crystal sizes Perfect size for use in classroom identif...

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ESNG0083PK12

Eisco Quartzite Specimen (Metamorphic Rock), Approx. 1" (3cm)

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

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ESNG0060

Eisco Quartzite Specimen (Metamorphic Rock), Approx. 1" (3cm) - Pack of 12

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

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ESNG0060PK12

Eisco Siltstone Specimen (Sedimentary Rock), Approx. 1" (3cm)

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

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ESNG0039

Eisco Siltstone Specimen (Sedimentary Rock), Approx. 1" (3cm) - Pack of 12

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

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ESNG0039PK12

Eisco Sphalerite Specimen, 3cm in size

Sphalerite sample approximately 1" (3cm) in size Often mined as a zinc ore Perfect size for use in classroom identification labs and exercises, co...

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ESNG0077

Eisco Sphalerite Specimen, 3cm in size, Pack of 12

Sphalerite sample approximately 1" (3cm) in size Often mined as a zinc ore Perfect size for use in classroom identification labs and exercises, co...

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ESNG0077PK12

Eisco Syenite Specimen, 3cm in size

Syenite sample approximately 1" (3cm) in size Igneous rock comprised primarily of feldspar Perfect size for use in classroom identification labs a...

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ESNG0084

Eisco Syenite Specimen, 3cm in size, Pack of 12

Syenite sample approximately 1" (3cm) in size Igneous rock comprised primarily of feldspar Perfect size for use in classroom identification labs a...

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ESNG0084PK12

Fine White Marble Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs

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

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ESNG0058

Galena, Cubic, Approximately 2.5"-3" Length, 1 1/4lbs., Single Piece

3" hand sample of galena, a lead ore Brilliant silver cubes exhibit galena's characteristic luster and cleavage Galena's high specific density mak...

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ESN0004

Hardouinia Fossil Replica, 4cm - Mesozoic Echinoderm Model - Eisco Labs

Fossil replica of a Mesozoic echinoderm measuring approximately 4cm (1.25") Sturdy fossil replica made from resin is designed to last through heav...

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BGFOS03

Native Copper Sample, Approximately 3" Length, Single Piece

3" specimen of native copper Twisted, wirelike shape betrays formation as a fracture-filling mineral Each sample of copper weighs between 2 and 3 ...

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ESN0012

Oolitic Limestone, Sedimentary Rock Specimen - Approx. 1"

OOLITIC LIMESTONE | Oolitic limestone is a carbonate rock formed from the cementation of thousands of ooids. Ooids are tiny nodules formed from th...

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ESNG0081

Optical Calcite (Iceland Spar), Approximately 2"-2.5" Length, Single Piece

2"-2.5" sample of optical calcite, also known as Iceland Spar Optical calcite is birefringent, allowing it to split and transmit beams of light in...

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ESN0011

Polished Quartz Crystal Point, Single Termination, 1.5"-2"

Single-point, polished quartz crystal between 1.5" and 2" in length Each piece is crystal clear, and takes the euhedral hexagonal form of quartz F...

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ESN0001

Raw Andesite, Igneous Rock Specimen - Approx. 1"

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

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ESNG0040

Raw Anthracite Coal, Metamorphic Rock Specimen - Approx. 1"

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

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ESNG0053

Raw Anthracite Coal, Metamorphic Rock Specimen - Hand Sample - Approx. 3"

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

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ESNG0053HAND

Raw Apatite Mineral Specimen, 1" - Geologist Selected Samples - Eisco 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...

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ESNG0065

Raw Augite, Mineral Specimen - Approx. 1"

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 ...

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ESNG0011

Raw Basalt Igneous Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs

BASALT | 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 c...

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ESNG0041

Raw Biotite Gneiss Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs

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

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ESNG0055

Raw Biotite Mineral Specimen, 1" - Geologist Selected Samples - Eisco Labs

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

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ESNG0012

Raw Bituminous Coal, Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs

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

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ESNG0030

Raw Breccia, Sedimentary Rock Specimen - Approx. 1"

BRECCIA | The large, angular clasts in breccia make it possible to confidently ascertain the depositional history of the rock GREAT FOR GEOLOGY CL...

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ESNG0029

Raw Breccia, Sedimentary Rock Specimen - Hand Sample - Approx. 3"

BRECCIA | The large, angular clasts in breccia make it possible to confidently ascertain the depositional history of the rock GREAT FOR GEOLOGY CL...

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ESNG0029HAND

Raw Calcite Mineral Specimen, 1" - Geologist Selected Samples - Eisco Labs

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

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ESNG0013

Raw Carbonaceous Shale, Sedimentary Rock Specimen - Approx. 1"

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

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ESNG0038

Raw Chert Mineral Specimen, 1" - Geologist Selected Samples - Eisco Labs

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

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ESNG0067

Raw Chert, Mineral Specimen - Hand Sample - Approx. 3"

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

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ESNG0067HAND

Raw Chlorite, Metamorphic Mineral Specimen - Approx. 1"

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

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ESNG0068

Raw Conglomerate Sedimentary Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs

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

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ESNG0031

Raw Coquina, Sedimentary Rock Specimen - Approx. 1"

COQUINA | Composed of bone and shell fragments, coquina is nearly 100% fossil matter. Held together by a carbonate cement, this skeletal mass form...

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ESNG0078

Raw Diorite, Igneous Rock Specimen - Approx. 1"

DIORITE | The minerals within diorite can be readily identified due to their large size, and by comparing the relative abundance of each mineral, ...

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ESNG0042

Raw Dolomite Mineral Specimen, 1" - Geologist Selected Samples - Eisco Labs

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

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ESNG0069

Raw Dolostone, Sedimentary Rock - Approx. 1"

DOLOSTONE | Composed primarily of carbonate material, dolostone is a more stalwart rock than its chemical cousin, limestone. It is often mined fo...

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ESNG0079

Raw Fluorite Mineral Specimen, 1" - Geologist Selected Samples - Eisco Labs

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...

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ESNG0014

Raw Fluorite, Mineral Specimen - Hand Sample - Approx. 3"

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...

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ESNG0014HAND

Raw Gabbro Igneous Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs

GABBRO | Gabbro is formed within magma chambers, deep within the earth. The chambers hold iron-rich rock melt, too heavy to reach the surface. As ...

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ESNG0043

Raw Garnet Schist, Metamorphic Rock Specimen - Approx. 1"

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

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ESNG0061