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Eisco™ Basalt Specimen
Basalt is formed quickly from an iron-rich magma and exhibits a dark color and small crystal size.
$9.70 - $9.70
Description
- Aphanitic volcanic rock forms from effusive eruptions, such as shield volcanoes of Hawaii, or deep ocean floor
- For use in introduction to igneous rock classification and identification
- Correlates well to Next Generation Science Standards Evidence Statements
- Students can recreate cooling history of this sample based on texture and abundance of phenocrysts
- Example of aphanitic igneous rock