Category:Preble Formation

Subcategories

This category has only the following subcategory.

Media in category "Preble Formation"

The following 2 files are in this category, out of 2 total.

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  Realgar & pararealgar & calcite on marble (Middle Eocene mineralization, 39 Ma; Getchell Mine, northern Osgood Mountains, northern Nevada, USA) 1 (18719248190).jpg 2,536 × 1,954; 1.57 MB
  
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  Realgar & pararealgar & calcite on marble (Middle Eocene mineralization, 39 Ma; Getchell Mine, northern Osgood Mountains, northern Nevada, USA) 2 (18909791261).jpg 2,784 × 1,917; 1.06 MB