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Eisco™ Andesite Specimen

Andesite Specimen for introduction to igneous rock classification and identifying minerals within igneous rocks.

Manufacturer:  Eisco™ ESNG0040PK10

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Catalog No. S26640

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  • 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
0.2 kg
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