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Albert O. Ray Proprietor, Del Rey Agates Speaker · Exhibitor “The Heart of Chihuahua”

With pride in his home state of Chihuahua Mexico matched only by his desire to share it, Albert O. Ray is effusive in his praise for northwestern Mexico and its famed agates. “Alberto,” as his friends know him, owns several important agate, jasper, and thunder egg claims in Chihuahua. He works tirelessly with the dedicated …

Albert O. Ray Proprietor, Del Rey Agates Speaker · Exhibitor “The Heart of Chihuahua” Leer más »

Dennis Beals Proprietor, XTAL Speaker · Exhibitor “Veracruz: Crystals and Fish”

Veracruz amethyst first appeared on international mineral markets in 1964. For years specimens were labeled “Las Vigas” for the town where they were sold, but the mines for these well-known crystals are actually located across the canyon in remote Piedra Parada. The district is located in the eastern part of Mexico, in the state of …

Dennis Beals Proprietor, XTAL Speaker · Exhibitor “Veracruz: Crystals and Fish” Leer más »

Dr. Virgil Lueth Mineralogist, State of New Mexico Speaker: “Color in Smithsonite”

Most smithsonite is formed during the weathering of ore (zinc) deposits. Reagent-grade zinc carbonate (smithsonite) is white, thus pure smithsonite is white to gray or colorless. And so, in a manner of speaking, colorful, collectible smithsonite is either impure or somehow defective. And while the range of color in this mineral has been known for …

Dr. Virgil Lueth Mineralogist, State of New Mexico Speaker: “Color in Smithsonite” Leer más »

Jack Crawford Mining Geologist, Mineral Dealer Speaker: “The Boleo Copper District”

The Boleo copper district surrounds the town of Santa Rosalía, which is situated about midway down the Baja Peninsula on the Gulf side. The copper deposits were discovered by a rancher in 1868 and were developed and mined under harsh conditions by the French-owned La Compagnie du Boléo. Miners drove 588 kilometers of underground workings, …

Jack Crawford Mining Geologist, Mineral Dealer Speaker: “The Boleo Copper District” Leer más »

Evan A. Jones Proprietor, Unique Minerals, Inc. Speaker: “Minerals of Milpillas”

In 2006 Milpillas, a new underground copper mine operated by Industrias Peñoles, opened in Sonora, Mexico. Within a year, finely crystallized specimens of azurite and malachite pseudomorphs after azurite began to appear on the collector market. While the quality of these specimens was very good, they were only a harbinger of what was to come. …

Evan A. Jones Proprietor, Unique Minerals, Inc. Speaker: “Minerals of Milpillas” Leer más »

Thomas P. Moore Editor and Author, The Mineralogical Record Speaker: “The Famous Ojuela Mine”

Discovered by the Spanish in 1598, the Ojuela copper-silver-gold mine is among Mexico’s greatest mineral localities and is surely its most beloved. But it was not until the 1946 discovery of a veritable grotto of adamite that the locality garnered the attention of collectors. The 117 mineral species now known from the deposit include the …

Thomas P. Moore Editor and Author, The Mineralogical Record Speaker: “The Famous Ojuela Mine” Leer más »

Jeffrey Scovil Photographer, Scovil Photography Speaker: “Photo Tour of Mexican Minerals”

For nearly three decades, Jeff Scovil has been photographing minerals, gems and other earth science materials full time. Since the 1990s and after publishing his 1996 book Photographing Minerals, Fossils and Lapidary Materials, Jeff has been the acknowledged world-leader in the highly specialized market of mineral photography. Jeff’s exceptional work has been published in numerous …

Jeffrey Scovil Photographer, Scovil Photography Speaker: “Photo Tour of Mexican Minerals” Leer más »

Brad L. Cross Hydrogeologist Speaker · Exhibitor “The Mexican Agate Story”

The agates of Mexico are among the most colorful and beautiful in the world. The deposits are found beginning about 75 miles south of the U.S.–Mexico border, in the state of Chihuahua and south, on an intermittent basis, through the states of Durango, Sonora, Coahuila, Zacatecas, and on to several of Mexico’s most southern states. …

Brad L. Cross Hydrogeologist Speaker · Exhibitor “The Mexican Agate Story” Leer más »

Dr. Peter K. M. Megaw co-founder MAG Silver Corporation Speaker · Exhibitor “Carbonate Replacement Deposits of Mexico: Why They & Their Relatives Can’t Help Being Major Specimen Producers”

Carbonate Replacement Deposits (CRDs) in Mexico include major specimen-producing districts such as Santa Eulalia, Ojuela, Naica, San Pedro Corralitos, Concepción del Oro, Los Lamentos, and Charcas. The worldwide CRD clan includes deposits in the Colorado Mineral Belt (Aspen, Leadville, Gilman); The Arizona-Sonora Porphyry Belt (Bisbee, Milpillas, Glove); Siberia (Dal’negorsk); Europe (Madan, Trepča, Lavrion); Asia (Yaoganxian, …

Dr. Peter K. M. Megaw co-founder MAG Silver Corporation Speaker · Exhibitor “Carbonate Replacement Deposits of Mexico: Why They & Their Relatives Can’t Help Being Major Specimen Producers” Leer más »