Filters
All Products
-
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 ...
View full detailsESNG0011 -
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...
View full detailsESNG0041 -
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...
View full detailsESNG0055 -
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...
View full detailsESNG0030 -
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...
View full detailsESNG0029HAND -
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...
View full detailsESNG0038 -
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 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 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 - 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 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 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 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 - 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 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 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 - 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 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 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 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 - 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 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 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 - Hand Sample - Approx. 3"
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 detailsESNG0036HAND -
Slate Metamorphic Rock Specimen, 1" - Geologist Selected Samples - Eisco Labs
SLATE | Slate is the result of the compression of shale, but is denser and retains the fissile properties, making for an interesting exercise when...
View full detailsESNG0063