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TV Stone or "Silky Spar" Ulexite sample

Death Valley National Park, National Park Service

Death Valley National Park, National Park Service
Death Valley, CA, United States

Borax was mined in a variety of locations in Death Valley and was found in several forms. Cottonball was found in salt deposits on the valley floor and traveled to market on 20-mule team wagons in the 1880s. Within a decade, purer forms of borax such as ulexite colemanite, kernite, and priceite were being mined and shipped via railroad lines.

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Death Valley National Park, National Park Service

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