Specimen Details
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Collection Names
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Number Of Specimens
1
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Specimen Nature
Form: Hand Specimen(s)
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Rock Name
Pyroxene Andesite
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Rock Class
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Rock Group
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Rock Description
An andesite composed of small, white crystals of plagioclase (most < 2mm length, but some about 1 cm) in a very fine grained, black somewhat glassy matrix with some fine vesicles. Post Tertiary.
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Minerals Present
plagioclase, clinopyroxene, orthopyroxene, opaques.
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Category
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Scientific Group
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Discipline
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Collecting Areas
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Type of Item
Geospatial Information
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Country
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State