Eisco™ Andesite Specimen
Andesite Specimen for introduction to igneous rock classification and identifying minerals within igneous rocks.
Manufacturer: Eisco™ ESNG0040PK10
- Abundant phenocrysts in fine-grained matrix offer great demonstration of igneous porphyry
- For use in classroom identification labs and exercises
- Correlates well to Next Generation Science Standards Evidence Statements
- Texture and chemistry variation are useful for students learning about differing cooling rates
- The fine-grained felsic matrix contains larger, identifiable hornblende crystals, indicating two different rates of cooling
- Example of porphyry in igneous rocks
|Igneous Rock, Andesite|
|2 to 3 cm|
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