Guild of Natural Science Illustrators
The GNSI is a 501(c)(3) that connects, provides professional development & networking opportunities to visual science communicators
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- Theophilus Britt Griswold
- Agate Formation Through Volcanism
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Agate mineral formation occurs by way of heated mineral rich water percolating through cavities in volcanic rock layers laid down millions of years ago along the U.S. Oregon coast.
- Collections: Geology