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Raw Garnet, Mineral Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
GARNET | Garnet comes in a variety of colors & shapes - this specimen is a deep red color. Garnet forms under intense heat and pressure condit...
View full detailsESNG0070 -
Raw Graphite, Pure Carbon Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
GRAPHITE | The same material found in pencils- graphite. This lustrous mass of carbon is an excellent example of how atomic structure can complete...
View full detailsESNG0009 -
Raw Gray Limestone Sedimentary Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs
GRAY LIMESTONE | The massive, gray variety of limestone is often found deposited in marine environments. It is made up of organic material, primar...
View full detailsESNG0033 -
Raw Green Slate, Metamorphic Rock Specimen - Approx. 1"
GREEN SLATE | Slate is very lightly metamorphosed and well-foliated. This appearance often makes it difficult to distinguish from its parent rock,...
View full detailsESNG0086 -
Raw Green Slate, Metamorphic Rock Specimen - Hand Sample - Approx. 3"
GREEN SLATE | Slate is very lightly metamorphosed and well-foliated. This appearance often makes it difficult to distinguish from its parent rock,...
View full detailsESNG0086HAND -
Raw Greywacke, Sedimentary Rock Specimen - Approx. 1"
GREYWACKE | Graywacke is a sedimentary rock composed of large, angular clasts within a fine-grained clay matrix. Formed during underwater avalanch...
View full detailsESNG0080 -
Raw Gypsum, Mineral Specimen - Approx. 1"
GYPSUM | A sulfate mineral that often forms from evaporating lakes in what is known as an evaporite deposit. Crystals grow into soft, wide sheets,...
View full detailsESNG0016 -
Raw Gypsum, Mineral Specimen - Hand Sample - Approx. 3"
GYPSUM | A sulfate mineral that often forms from evaporating lakes in what is known as an evaporite deposit. Crystals grow into soft, wide sheets,...
View full detailsESNG0016HAND -
Raw Halite Mineral Specimen, 1" - Geologist Selected Samples - Eisco Labs
HALITE | Halite is commonly known as table salt. This soft, white to transparent mineral grows into cleavable cubes GREAT FOR GEOLOGY CLASSROOMS |...
View full detailsESNG0017 -
Raw Halite, Mineral Specimen - Hand Sample - Approx. 3"
HALITE | Halite is commonly known as table salt. This soft, white to transparent mineral grows into cleavable cubes GREAT FOR GEOLOGY CLASSROOMS |...
View full detailsESNG0017HAND -
Raw Hematite Mineral Specimen, 1" - Geologist Selected Samples - Eisco Labs
HEMATITE | This specular variety of hematite takes the form of tiny, sparkling iron oxide crystals GREAT FOR GEOLOGY CLASSROOMS | Perfect for demo...
View full detailsESNG0076 -
Raw Hematite, Mineral Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
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,...
View full detailsESNG0018 -
Raw Hornblende, Amphibole Mineral Specimen - Approx. 1"
HORNBLENDE | Hornblende is part of a group of minerals known as amphiboles. These minerals are chemically and structurally similar to pyroxenes, b...
View full detailsESNG0019 -
Raw Labradorite, Sedimentary Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
LABRADORITE | Labradorite is a variety of plagioclase feldspar, intermediate between anorthite and albite. Notable about this species of feldspar ...
View full detailsESNG0071 -
Raw Limestone Chalk, Sedimentary Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
LIMESTONE CHALK | Limestone is made up of organic material, primarily calcium carbonate. The chalk variety consists of the shells of coccolithopho...
View full detailsESNG0032 -
Raw Lodestone Mineral Specimen, 1" - Geologist Selected Samples - Eisco Labs
LODESTONE | This naturally magnetized mineral creates it's own magnetic field and can pick up small metal objects. Iron particles cover its surfac...
View full detailsESNG0073 -
Raw Magnetite Mineral Specimen, 1" - Geologist Selected Samples - Eisco Labs
MAGNETITE | Magnetite forms as an accessory mineral from an igneous melt. As it cools, the iron in its atomic structure becomes magnetized GREAT F...
View full detailsESNG0020 -
Raw Mica Schist, Metamorphic Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
MICA SCHIST | A metamorphic rock that has undergone moderate levels of alteration, schist is good for demonstrating the effect of metamorphism on ...
View full detailsESNG0062 -
Raw Microcline, Mineral Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
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...
View full detailsESNG0021 -
Raw Milky Quartz Mineral Specimen, 1" - Geologist Selected Samples - Eisco Labs
MILKY QUARTZ | One of the most abundant minerals on Earth. The tightly packed framework of silica tetrahedral that makes up this mineral gives it ...
View full detailsESNG0025 -
Raw Muscovite Mica Specimen, 1" - Geologist Selected Samples - Eisco Labs
MUSCOVITE MICA | Muscovite mica is a mineral that forms from cooling magma. It forms in thin sheets that are individually weak, but comprehensivel...
View full detailsESNG0022 -
Raw Muscovite Mica, Mineral Specimen - Hand Sample - Approx. 3"
MUSCOVITE MICA | Muscovite mica is a mineral that forms from cooling magma. It forms in thin sheets that are individually weak, but comprehensivel...
View full detailsESNG0022HAND -
Raw Obsidian Igneous Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs
Raw Obsidian SpecimenSingle Sample, 1" OBSIDIAN | Obsidian, also known as volcanic glass, forms from lava that cools almost immediately upon eru...
View full detailsESNG0046 -
Raw Obsidian, Igneous Rock Specimen - Hand Sample - Approx. 3"
Raw Obsidian SpecimenHand Sample, 3" OBSIDIAN | Obsidian, also known as volcanic glass, forms from lava that cools almost immediately upon erupt...
View full detailsESNG0046HAND -
Raw Olivine, Mineral Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
OLIVINE | Much of the earth's surface is covered in oceanic crust, of which olivine is a major component. With the highest crystallization tempera...
View full detailsESNG0023 -
Raw Peridotite, Igneous Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
PERIDOTITE | Peridotite is an iron-rich ultramafic rock, with a chemistry that suggests genesis from a point deep within the crust, possibly as de...
View full detailsESNG0047 -
Raw Phyllite, Metamorphic Rock Specimen - Approx. 1"
PHYLLITE | Phyllite is a good example of low-grade metamorphism from an easily recognizable parent rock. The fissile property of slate is retained...
View full detailsESNG0059 -
Raw Pink Granite, Igneous Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
PINK GRANITE | Commonly found as magmatic intrusions in the crust, granite forms slowly in shallow or evolved magma chambers. The large crystals a...
View full detailsESNG0045 -
Raw Porphyritic Granite Specimen, 1" - Geologist Selected Samples - Eisco Labs
PORPHYRITIC GRANITE | Granite forms slowly in shallow or evolved magma chambers, and is also commonly found as magmatic intrusions in the crust. T...
View full detailsESNG0044 -
Raw Pumice Igneous Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs
PUMICE | Pumice is formed from the frothy lava that a volcanic explosion creates. As the frothy lava cools, it hardens as a light weight rock that...
View full detailsESNG0048 -
Raw Pumice, Igneous Rock Specimen - Hand Sample - Approx. 3"
PUMICE | Pumice is formed from the frothy lava that a volcanic explosion creates. As the frothy lava cools, it hardens as a light weight rock that...
View full detailsESNG0048HAND -
Raw Pyrite Mineral Specimen, 1" - Geologist Selected Samples - Eisco Labs
PYRITE | Pyrite forms as hot water flows through fractures in subsurface rock. This deposition method allows pyrite to replace other minerals or f...
View full detailsESNG0024 -
Raw Quartz Mineral Specimen, 1" - Geologist Selected Samples - Eisco Labs
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...
View full detailsESNG0010 -
Raw Quartzite, Metamorphic Rock Specimen - Hand Sample - Approx. 3"
QUARTZITE | Applying significant pressure to sandstone results in the formation of quartzite. The compaction of sandstone's sturdy silicate framew...
View full detailsESNG0060HAND -
Raw Red Sandstone Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs
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...
View full detailsESNG0035 -
Raw Red Slate, Metamorphic Rock Specimen - Approx. 1"
RED SLATE | Slate is very lightly metamorphosed and well-foliated. This appearance often makes it difficult to distinguish from its parent rock, s...
View full detailsESNG0087 -
Raw Red Slate, Metamorphic Rock Specimen - Hand Sample - Approx. 3"
RED SLATE | Slate is very lightly metamorphosed and well-foliated. This appearance often makes it difficult to distinguish from its parent rock, s...
View full detailsESNG0087HAND -
Raw Rhyolite, Igneous Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
RHYOLITE | Rhyolite is an aphanitic felsic rock which forms during eruptions of thick, viscous magma. Often containing phenocrysts of felsic miner...
View full detailsESNG0049 -
Raw Rhyolite, Igneous Rock Specimen - Hand Sample - Approx. 3"
RHYOLITE | Rhyolite is an aphanitic felsic rock which forms during eruptions of thick, viscous magma. Often containing phenocrysts of felsic miner...
View full detailsESNG0049HAND -
Raw Scoria Igneous Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs
SCORIA | Scoria forms as spatter from bubbly, mafic lava is thrown into the air and cooled quickly. The crystallization happens so quickly that la...
View full detailsESNG0050 -
Raw Serpentinite, Metamorphic Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
SERPENTINITE | When clay- and aluminum-rich rock is altered by water from geothermal systems, serpentinite is liable to form. Often found in low-g...
View full detailsESNG0085 -
Raw Soapstone, Mineral Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
SOAPSTONE | Through the process of metasomatism, hot fluid infiltrates the atomic structure of other silicate minerals, altering them to form soap...
View full detailsESNG0027 -
Raw Sulfur, Mineral Specimen - Approx. 1"
SULFUR | Sulfur is a popular mineral that forms as a soft precipitate near volcanic vents and springs. This bright yellow mineral has a distinct s...
View full detailsESNG0026 -
Raw Sulfur, Mineral Specimen - Hand Sample - Approx. 3"
SULFUR | Sulfur is a popular mineral that forms as a soft precipitate near volcanic vents and springs. This bright yellow mineral has a distinct s...
View full detailsESNG0026HAND -
Raw Travertine, Sedimentary Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
TRAVERTINE | & classification exercises. Travertine is a carbonate rock formed from gushing hot springs. The airy, porous material indicates a...
View full detailsESNG0082 -
Raw Volcanic Tuff, Igneous Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
VOLCANIC TUFF | Dust & ash deposited during explosive volcanic eruptions can become compacted and lithified over time, forming large packages ...
View full detailsESNG0051 -
Raw Volcanic Tuff, Igneous Rock Specimen - Hand Sample - Approx. 3"
VOLCANIC TUFF | Dust & ash deposited during explosive volcanic eruptions can become compacted and lithified over time, forming large packages ...
View full detailsESNG0051HAND -
Raw White Sandstone Sedimentary Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs
WHITE SANDSTONE | White Sandstone is a recognizable sedimentary rock made up of well sorted and rounded grains of quartz, indicating that the clas...
View full detailsESNG0036