| | Journal (issue) | Micro Minerals of the Las Choyas Geodes, Aldama Municipality, Chihuahua, Mexico By Beth Heesacker My...that I invited to vend at our show brought these Las Choyas geodes, among others, to the show along with...Calcite Cryptomelane Goethite Gypsum Hematite Hollandite Hydroxylapatite var. Carbonate-rich Hydroxylapatite | | | Journal (article/letter/editorial) | cattle on Trinidad Carrillo’s Mesteño Ranch in Chihuahua, Mexico. Little did he know that he had just discovered...of the world’s greatest geode deposits. The Las Choyas Geode Deposit Downloaded by [Florida International...International University] at 20:00 23 August 2013 Chihuahua Mexico Figure 1. Quartz with an outstanding calcite... Figure 2. A view of the southern end of the Las Choyas geode deposit. The Carrillo mining camp can be...the Carrillos’ shop, which was brimming with Las Choyas geodes. When asked where the geodes came from | | | Book | agate-filled vesicles at the Rancho Coyamito (Chihuahua, Mexico); (d) finely banded agate from a trachyandesitic...wall-lining (“fortification”) agate from Ojo Laguna (Chihuahua, Mexico); (b) horizontal banding (“Uruguay agate”)...ramsdellite, birnessite, pyrolusite, rancieite, hollandite, cryptomelane/psilomelane, manganite cuprite...thunderegg from the Baker Egg Mine, Deming (New Mexico, USA) with multiple crescent-shaped agate cavities;...peculiarities in agates: (a) agate from Moctezuma, Chihuahua (Mexico) showing a so called “infiltration channel” |
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Las Choyas, Aldama Municipality, Chihuahua, Mexico