20 Results for: "WardsSci000450"
Ward's® Gabbro (Hornblende)
Supplier: Avantor
Dark gray, with hornblende as the dominant mafic mineral.
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Ward's® Snowflake Obsidian (Cristobalite), Student Specimens
Supplier: Avantor
Volcanic glass with snowflakes embedded throughout.
Expand 1 Items
Ward's® Obsidian (Brown and Black)
Supplier: Avantor
Banded volcanic glass.
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Ward's® Granite (Gray)
Supplier: Avantor
Fine to medium-grained with biotite.
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Ward's® Basalt (Vesicular)
Supplier: Avantor
Dark gray with abundant gas pocket vesicles.
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Ward's® Peridotite (Coarse-Grained)
Supplier: Avantor
Dark gray, composed mostly of pyroxene and olivine.
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Ward's® Basalt (Flood)
Supplier: Avantor
Classic, dark; from the Columbia Plateau.
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Ward's® Gabbro
Supplier: Avantor
Coarse-grained plagioclase and pyroxene with some olivine.
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Ward's® Pegmatite
Supplier: Avantor
Classic, very coarse-grained igneous texture.
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Ward's® Andesite (Hornblende)
Supplier: Avantor
Abundant small black phenocrysts in a gray to brown matrix.
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Ward's® Diorite
Supplier: Avantor
Coarse, “salt and pepper”: dark pyroxene and light andesine.
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Ward's® Rhyolite (Pink)
Supplier: Avantor
Pale pink felsite, with small sanidine phenocrysts.
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Ward's® Scoria
Supplier: Avantor
Gray-to-brown basaltic, with over 50% vesicles.
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Ward's® Andesite (Porphyry)
Supplier: Avantor
Gray andesite with large, blocky hornblende phenocrysts.
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Granite (Porphyritic)
Supplier: Avantor
Coarse-grained, with microcline, biotite and horblende phenocrysts.
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Pumice (Light Gray)
Supplier: Avantor
Glassy; most specimens float in water.
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Ward's® Obsidian
Supplier: Avantor
Shiny black volcanic glass showing conchoidal fracture and some spherulites.
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: VWR International
: VWR International
: VWR International
: VWR International
: VWR International
: VWR International
: VWR International
: VWR International
: VWR International