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- Porphyritic Granite Specimen, Pack of 6
Porphyritic Granite Specimen, Pack of 6
A specimen of porphyritic igneous rock showing two distinct crystal sizes, the result of magma cooling slowly at first and then quickly. It is used in classroom studies of plutonic petrology.
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- Pack of 6 (PK)
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Other sizes & packs
3 variants in this rangeA specimen of porphyritic igneous rock showing two distinct crystal sizes, the result of magma cooling slowly at first and then quickly. It is used in classroom studies of plutonic petrology.
| Cat. No. | GEO-04-Z12-9000-014 |
|---|---|
| Category | Rocks and Minerals / Igneous Rocks / Intrusive (Plutonic) Igneous Rocks |
| Subject | Earth Science |
| Pack size | Pack of 6 (PK) |
| Shipping weight | 0.50 lbs / 227 gms · 0.227 kg |