7076844
Eisco™ Basalt Specimen
Basalt is formed quickly from an iron-rich magma and exhibits a dark color and small crystal size.
Manufacturer: Fischer Scientific
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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