Metamorphic 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.
Ward's® Gneiss (Gray Banded)
Supplier: Avantor
White and black bands of quartz, feldspar, and biotite; typical foliation.
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Ward's® Slate (Dark Gray)
Supplier: Avantor
Chlorite-mica with perfect slaty cleavage.
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Ward's® Phyllite
Supplier: Avantor
Light gray, fine-grained, well-foliated, schistose.
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Ward's® Amphibolite
Supplier: Avantor
Dark, coarse-grained, and composed chiefly of hornblende.
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Metamorphic Rock Set of 18
Supplier: Avantor
Includes: six each of marble, slate, and quartzite. Set of 18.
Common rocks and minerals for testing and identification studies are 2–3cm each.
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Ward's® Skarn
Supplier: Avantor
White, very dark green, and very dark red to light red granoblastic intergrowth of wollastonite, diopside, and andradite.
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Ward's® Schist (Mica)
Supplier: Avantor
Foliated biotite, coarse, silvery gray with quartz-feldspar bands.
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Ward's® Gneiss (Pink Banded)
Supplier: Avantor
Pink and gray bands, with biotite; shows good foliation.
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Ward's® Marble (Coarse White)
Supplier: Avantor
Gray to white, coarse crystalline, carbonate rock.