Photos of the principal gemstones produced in the United States, including an introduction to historical and other background information for each one.

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Concepts

gems, quartz

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Additional Tags

california tourmaline, feldspar, garnet, gemstone production, gemstones, jewels, natural gemstones, opal, pearl, sapphires, simulant gemstones, synthetic gemstones, turquoise, us geological survey, usgs

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Classroom Considerations

Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)

View 8,264 other resources for 9th - 10th Grade Earth Science