Specialty 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® Fulgurite
Supplier: Avantor
Unusual glassy tubes of fused sand produced by lightning strikes in desert sediments. Average size: 1.5"- 2".
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Ward's® Porphyry
Supplier: Avantor
Shows porphyritic texture in a fine dark matrix abundant large feldspar phenocrysts. Hand specimen.
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Ulexite (TV Stone)
Supplier: Avantor
Cut and finished samples with fiberoptic samples.
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Ward's® Cross-bedded Sandstone
Supplier: Avantor
Sawn and lacquered slab showing thinly bedded truncated layers in a well-cemented sandstone. Large hand specimen.
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Ward's® Stretch Pebble Conglomerate
Supplier: Avantor
Deformed pebbles in a metamorphased conglomerate. Large sawed and lacquered specimen.
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Ward's® Mantle Xenolith
Supplier: Avantor
Glossy green dunite (olivine) inclusion in non-genetically related basalt. Average size: 3" x 4".
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Ripple Marks
Supplier: Avantor
Clearly preserved ripple marks in bedded sedimentary rock. Average slab size: 6 x 8".
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Ward's® GEO-Logic Types of Fossilization Topic Set
Supplier: Avantor
Define and compare ways organisms have been preserved.
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Schist (Mica Garnet)
Supplier: Avantor
Silvery, paragranite and muscovite-rich with medium garnet crystals.
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Algal Stromatolite (Cynobacteria) (PreCambrian)
Supplier: Avantor
Beautifully polished and distinctive slabs or rare 2.3 billion year old fossil stromatolites. Well defined growth structures in matrix.
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Pocket Hardness Points Set
Supplier: Avantor
Students determine a mineral's hardness between five and 10 on Mohs' scale.
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