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Eisco Syenite Specimen, 3cm in size

  • Syenite sample approximately 1" (3cm) in size
  • Igneous rock comprised primarily of feldspar
  • Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements
  • Phaneritic, very felsic rock
  • Specimen comes in clear labeled and barcoded bag for ideal storage


Syenite is a variety of felsic igneous rock heavily composed of feldspar. Though formed similarly to granite, the higher aluminum content of syenite indicates a more evolved magma. This sample can be used to great effect in classes regarding igneous petrology and volcanology, and is a good sample to include in identification exercises. Each sample is approximately 1" long and comes in a labeled plastic bag.

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