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- Mammoth mine, Jeff Davis Co., Texas, United States
- SmCabinet 9x6x6cm
- Special Info
The matrix is somekind of volcanic tuft or myrolitic rhyolite, but lining the vugs are scattered sprays of glassy yellow Uranophane to 1mm. These are magnificent crystals. Also, although not shown in the photos are lighter yellow smallr sprays of Haiweeite.