Rock and Mineral Specimens and Collections
Eisco™ Sandstone Specimen
Sandstone Specimen is made up of well-sorted and well-rounded grains of quartz.
Eisco™ Calcite Mineral Specimen
Calcite Mineral Specimen is used in classroom identification labs, exercises, and lessons on chemical reactions.
Eisco™ Olivine Mineral Specimen
Olivine Mineral Specimen for teaching students about mineral physical properties like hardness, fracture, and luster.
Eisco™ Pyrite Mineral Specimen
Pyrite Mineral Specimen has a shiny metallic luster and bright brassy color, making it an ideal addition to mineral collections or classroom exercises.
Eisco™ Sulfur Mineral Specimen
Sulfur Mineral Specimen ideal for mineral identification exercises, due to its instantly recognizable physical properties.
Eisco™ Obsidian Specimen
Obsidian Specimen, also known as volcanic glass, forms from lava that cools almost immediately upon eruption.
Eisco™ Bituminous Coal Specimen
Bituminous Coal is formed in anoxic environments from compressed organic matter, and is used worldwide as a fuel source.
Eisco™ Anthracite Coal Specimen
Anthracite Coal is formed in anoxic environments from compressed organic matter, and is used worldwide as fuel source.
Eisco™ Chalcopyrite Mineral Specimen
From the same family as fool's gold, Chalcopyrite is a yellow crystalline mineral consisting of a sulfide of copper and iron. It's the principal ore of copper formed in hydrothermal veins.
Eisco™ Gabbro Specimen
Gabbro forms when iron-rich magma too heavy to reach surface cools slowly over time.
Eisco™ Labradorite Sedimentary Rock Specimen
Labradorite is a variety of plagioclase feldspar, intermediate between anorthite and albite. Notable about this species of feldspar is its potential for iridescence.
Eisco™ Travertine Sedimentary Rock Specimen
Travertine is a carbonate rock formed from gushing hot springs. The airy, porous material indicates an abundance of air bubbles moving through the rock as it solidified. Travertine is unique in that it forms as a result of rapidly dropping pH levels.
Eisco™ Apatite Specimen
Apatite is a common phosphate mineral often found as an accessory mineral in igneous rocks or as concretions or detrital clasts in sedimentary rocks. A standard Mohs hardness of 5 and a relatively uncommon crystal habit.
Eisco™ Chlorite Mineral Specimen
Chlorite is a metamorphic mineral that has undergone light alteration.
Eisco™ Fine White Marble Specimen
Fine White Marble Specimen for use in classroom activities to ascertain differences between metamorphic rocks and their provenance.