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Échantillons

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.

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Ward's® GEO-Logic Metallic Mineral Resources Set

Ward's® GEO-Logic Metallic Mineral Resources Set

Give Your Students a Lesson in Economics as Well as Geology

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Ward's® Chalcopyrite

Ward's® Chalcopyrite

Good grade, brass-yellow copper ore, massive.

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Ward's® Fluorite (Fluorescent)

Ward's® Fluorite (Fluorescent)

Brown, fluorescent crystals intergrown in dolomite rock.

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Ward's® Hornblende (Cleavage)

Ward's® Hornblende (Cleavage)

Amphibole group; dark greenish black cleavages, somewhat columnar.

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Ward's® Hematite (Red Ochre)

Ward's® Hematite (Red Ochre)

Red, earthy, in natural chunk form; common pigment ore.

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Ward's® Azurite

Ward's® Azurite

Bright blue crystalline veins and coatings in a matrix of mixed copper ore.

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Ward's® Kaolin (Powdered)

Ward's® Kaolin (Powdered)

Pure kaolinite powder, 200 mesh.

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Ward's® Bauxite

Ward's® Bauxite

Classic “peacock” aluminum ore.

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Ward's® Biotite

Ward's® Biotite

Cut black mica cleavage sheets.

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Ward's® Gabbro

Ward's® Gabbro

Coarse-grained plagioclase and pyroxene with some olivine.

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Ward's® Gabbro (Hornblende)

Ward's® Gabbro (Hornblende)

Dark gray, with hornblende as the dominant mafic mineral.

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Ward's® Gneiss (Pink Banded)

Ward's® Gneiss (Pink Banded)

Pink and gray bands, with biotite; shows good foliation.

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Ward's® Granite (Gray)

Ward's® Granite (Gray)

Fine to medium-grained with biotite.

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Ward's® Granite (Pink)

Ward's® Granite (Pink)

Medium-grained with biotite.

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Ward's® Granite (Porphyritic)

Ward's® Granite (Porphyritic)

Coarse-grained, with microcline, biotite and horblende phenocrysts.

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Ward's® Limestone (Travertine)

Ward's® Limestone (Travertine)

Earthy, porous calcareous tufa.

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