Échantillons
Des spécimens sont disponibles pour une grande variété de procédures de test organiques et inorganiques. Les échantillons organiques peuvent être utilisés pour la dissection ou l’étude de spécimens entiers, vivants ou conservés, avec des exemples pratiques en biologie cellulaire ou dans l’analyse de la structure interne d’organes et de systèmes multicellulaires complexes. Les spécimens de roche permettent l’étude des textures, des tailles de grains et d’autres caractéristiques influencées par la pression, la température et d’autres forces naturelles, offrant un aperçu de l’histoire géologique de la Terre.
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® Anorthite
Feldspar group; calcium end member plagioclase crystals in pyroxene matrix.
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Ward's® Anorthoclase
When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.
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Ward's® Apatite (Massive)
Blue fluorapatite, pure crystalline, Moh's hardness of 5.
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Ward's® Enstatite
When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.
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Ward's® Kyanite
When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.
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Ward's® Microcline (Pink)
Feldspar group; pink cleavages showing perthitic texture, common potassium feldspar, Mohs’ hardness of 6.
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Ward's® Muscovite
When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.
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Nepheline
Our excellent series of standard thin sections features important and interesting rock-forming mineral types most often found in field samples.
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Ward's® Diopside
When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.
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Ward's® Tourmaline
When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.
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Ward's® Quartz (Milky)
White, massive, coarse crystalline vein, Mohs’ hardness of 7.