Gem resources

Deposits of rare minerals prized for their color, durability, sparkle, and clarity when cut and polished and used as ornaments or jewelry.
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Map showing areas with potential for garnet resources in bedrock and placer in the Blacktail Mountains and the Gravelly, Greenhorn, Ruby, and Snowcrest ranges of southwestern Montana

Geological data in support of mineral resource assessment

Local-area-enhanced, 2.5-meter resolution natural-color and color-infrared satellite-image mosaics of the Nuristan mineral district in Afghanistan

GeoTIFF rendition of locally enhanced ALOS image mosaics for the Haji-Gak mineral district, which has gem, lithium, and cesium deposits.

Local-area-enhanced, 2.5-meter resolution natural-color and color-infrared satellite-image mosaics of the Panjsher Valley mineral district in Afghanistan

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain emerald and silver-iron deposits.