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
Trachybasalt
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Rock Class
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Rock Group
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Rock Description
A porphyritic trachybasalt composed of pinkish grey phenocrysts (2mm to 1 cm) in an aphanitic darkgrey nearly black matrix. Previously called Andesite and Diorite Porphyry.
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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
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Town