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clay+minerals


371  results were found
Specimens

Specimens are available for use in a wide variety of organic and inorganic testing procedures. Organic samples can be utilized for dissection purposes or studying whole preserved or life specimens, with practical examples in cellular biology or the internal structures of whole organs and complex multicellular systems. Rock specimens are useful for studying textures, grain sizes, and other features brought about by pressure, temperature, and other natural forces, offering a glimpse into the Earth’s geological history.


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Description:   Apatite is a gemmy blue phosphate mineral, mohs hardness 5.
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Description:   Pink/grey marble colored metamorphosed carbonate rock.
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Description:   Scoria is a dark-colored rock formed from lava with a high gas content.
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Description:   Gray metamorphosed shale showing "slaty cleavage".
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Description:   Bituminous rich black shale for hands-on investigations.
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Description:   Fools gold Brassy color which leaves a black streak.
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Description:   Obsidian is hard black colored, volcanic glass.
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Description:   Massive white quartz with a moh's hardness 7.
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Description:   Gray to white metamorphosed carbonate rock.
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Description:   Red clastic rock composed of sand sized particles and hematite.
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Description:   Pumice is light colored glassy rock that floats in water.
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Description:   Limestone is a gray calcium carbonate that will fizz with dilute HCl.
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Description:   Quartzite is hard, non-foliated rock formed from metamorphosed quartz sandstones.
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Description:   A textbook example of pure crystalline carbon which is extermely soft.
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Description:   Perfect demonstration of cubic crystalline structure. White in color, varies from clear to opqaue.
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Description:   Massive sedimentary gypsum with a moh's hardness 2..
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