Échantillons rocheux
Rock specimens are useful for studying textures, grain sizes, and other features altered by pressure, temperature, and other natural forces. Different select categories of rock specimens are available for purchase as well, including metamorphic, igneous, and sedimentary rocks. Sets of rock specimens are housed in compartmentalized collection boxes, with descriptions of each specimen printed for easy confirmation of identification. These rock specimens are carefully selected to be the highest quality to provide students with a suitable introduction to earth materials and their characteristics.
Ward's® Coal (Lignite)
Brownish black, intermediate stage between peat and bituminous coal.
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Ward's® Peridotite (Coarse-Grained)
Dark gray, composed mostly of pyroxene and olivine.
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Ward's® Arkose
Red-brown to gray, coarse-grained, containing feldspar and mica.
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Shale (Carbonaceous)
Black, fissile; commonly with carbonized fossil plant impressions.
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Ward's® Tuff (Rhyolitic)
Gray, fine, friable, with abundant small sanidine crystal fragments.
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Ward's® Classroom Rock Collection
Survey set improves student's recognition of all three major rock groups.
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Ward's® Intro to Petrography Thin Sections and Rock Set
Set of Nine Thin Sections and Matching Rocks