| OCR Text |
Show 9 nonmetallic minerals and construction materials that have been considered and investigated. Metallic minerals Copper and silver in sandstone Copper in Unaweep Canyon wGold, silver and copper In the Cebolla area iron Mangane se Molybdenite placer deposits with gold Titanium *Vanadium in the Southwestern Colorado area and the Rifle Creek area Vanadium in the Coal Creek area Zinc, gold, silver and copper in the Rifle Creek area Nonmetallic minerals Feldspar Gilsonite Nitrate Salt *Sulfur *Vermiculite Construction materials Building stone Clay Gypsum Limestone *Sand and gravel The mineral occurences that have a value, indicated by an asterisk in the foregoing tabulation, are (1) vanadium in the Southwestern Colorado area and the Rifle Creek area, (2) the gold-silver-copper deposits on Cebolla Creek, (3) sulfur, (4) vermiculite, and (5) sand and gravel. These deposits are described separately. The deposits that do not have value are described briefly below, with an explanation |
