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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...
View full detailsESNG0067HAND -
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...
View full detailsESNG0068 -
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...
View full detailsESNG0031 -
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...
View full detailsESNG0078 -
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, ...
View full detailsESNG0042 -
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...
View full detailsESNG0069 -
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...
View full detailsESNG0079 -
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...
View full detailsESNG0014 -
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...
View full detailsESNG0014HAND -
Raw Fossiliferous Limestone, Sedimentary Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
FOSSILIFEROUS LIMESTONE | This rock formed at the bottom of a marine environment through the compaction of deceased organic matter in a clay or si...
View full detailsESNG0034 -
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 ...
View full detailsESNG0043 -
Raw Galena, Mineral Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs
GALENA | Galena grows in beautiful metallic cubes. Often refined as lead ore, galena can also be used to teach students about a mineral's luster, ...
View full detailsESNG0015 -
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...
View full detailsESNG0061 -
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