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RAW PORPHYRITIC GRANITE
1" Igneous Rock Specimen
Granite forms slowly in shallow or evolved magma chambers, and is also commonly found as magmatic intrusions in the crust. The large crystals are indicative of a slow cooling rate, and make mineral identification simple. Excellent for classroom mineral study and identification. A must-have sample when discussing rock types, the rock cycle, and the formation, classification, and identification of igneous rocks.
Selected & Locally Processed by a Geologist.
Each and every specimen is selected and hand processed by an actual geologist, ensuring that each sample exhibits defining features. Our rocks & minerals are sourced from a variety of locations around the world and processed by hand in Victor, NY.
Technical Support
Always feel free to reach out to our team of scientists and geologists for additional information, or to assist you with any questions regarding our rock and mineral samples.
- A must-have sample when discussing rock types, the rock cycle, and formation
- Ideal for identification & classification exercises
- Available in single, 6 pack and 12 pack sizes
- Excellent for any geology classroom
James Jozaites
Reviewed in the United States on November 15, 2020
Nice
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