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File:USDA Mineral Quartz Crystal 93c3951.jpg

USDA_Mineral_Quartz_Crystal_93c3951.jpg(640 × 422 pixels, file size: 58 KB, MIME type: image/jpeg)

Mineral Quartz Crystal

USDA Photo by: Ken Hammond
USDA Image Number: 93cs3951

Public domain This image or file is a work of a United States Department of Agriculture employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

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