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Sedimentary Rocks
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.
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Ward's® Sedimentary Rock Collection
Represents a Wide Range of Depositional Environments and Rock Textures
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Ward's® Limestone (Gray)
Fine, common limestone; massive, and will fizzle with HCl.
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Sedimentary Rock Set of 18
Includes: six each of conglomerate, sandstone and shale. Set of 18.
Common rocks and minerals for testing and identification studies are 2–3cm each.
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Ward's® Sandstone (Banded)
Red, medium, to coarse-grained iron oxide cement; shows hematite bands.
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Ward's® Coal (Lignite)
Brownish black, intermediate stage between peat and bituminous coal.
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Ward's® Arkose
Red-brown to gray, coarse-grained, containing feldspar and mica.
Expand 4 item
Shale (Carbonaceous)
Black, fissile; commonly with carbonized fossil plant impressions.
Expand 3 item
Geo-logic Sedimentary Rock Set
Indicative of Various Sedimentary Formation Processes
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Limestone (Coquina)
Buff-colored, coarse, detrital limestone, with cemented shell fragments.
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Ward's® Limestone (Shell)
Buff, coarse, crystalline “Austin Marble” with shell casts and molds.