Recently added articles from The Mineralogical Record:
The American Mineral Treasures exhibition: Tucson Gem & mineral show 2008.
May 01, 2008; Wilson, Wendell E. ... The 2008 Tucson Show exhibits--what can we say? Close to 50 showcases featured the best specimens from the greatest localities in the U.S., borrowed from museums and private collections across the country. There was an electricity and a feeling of excitement in the air that we had never ...
Epidote and associated minerals from Green Monster Mountain, Prince of Wales Island, Alaska.(Brief article)
May 01, 2008; Toland, Douglas C. ... World-class epidote crystals were first found on Green Monster Mountain, Alaska, by hardy prospectors looking for copper in the early 1900s. The epidote specimens occur within a skarn complex on privately owned patented mining claims which cover the mountain's top, upper sides and ridges ....
Dioptase, cerussite and other minerals from the Mammoth-St. Anthony mine, Tiger, Pinal County, Arizona.(Brief article)
May 01, 2008; Presmyk, Les ... The Mammoth-St. Anthony mine at Tiger has produced not only large amounts of gold, molybdenum and copper but also more than 90 different mineral species since Frank Schultz staked the first claims in 1879. The mine began as several separate workings that ultimately were consolidated, but ...
Wulfenite and associated minerals from the Old Yuma mine, Pima County, Arizona.(Brief article)
May 01, 2008; Wilson, Wendell E. ... The Old Yuma mine is located in the Tucson Mountains of Pima County, Arizona, about 14 kilometers by road northwest of the Tucson city limits. The mine has produced North America's best vanadinite specimens and is also well known for some of Arizona's largest and finest yellow wulfenite ...
Azurite, malachite and associated minerals from the Morenci Mine, greenlee county, Arizona.(Brief article)
May 01, 2008; Esbenshade, Stan ... The Morenci Mine is located in east-central Arizona near the boundary with New Mexico. Copper deposits were discovered there in 1865 and the first claims were staked in 1872. Serious mining to exploit the rich near-surface copper carbonate veins began shortly thereafter. Morenci eventually ...
Wulfenite and associated minerals from the Glove mine, Santa Cruz County, Arizona.(Brief article)
May 01, 2008 ... The Glove mine is located in the western foothills of the Santa Rita Mountains, in Santa Cruz County, Arizona, about 40 miles south of Tucson. It is one of Arizona's most famous wulfenite localities, yielding large crystals and clusters in a variety of habits and colors. The first claims ...
Copper and associated minerals from the Ray mine, Pinal County, Arizona.(Brief article)
May 01, 2008; Jones, Robert W. ... The Ray copper mine in Pinal County, Arizona exploits a low-grade copper porphyry deposit underlain in part by a thick zone of copper sulfides. The deposit was first worked by local Native Americans, then by United States Army personnel sent to subdue them. Once the domestic situation was ...
Azurite, malachite and associated minerals from Bisbee, cochise county, Arizona.(Brief article)
May 01, 2008; Graeme, Richard ... For the better part of a century, the ore deposits at Bisbee, Arizona, discovered by an Army scout in 1877, were world-class. They have produced millions of tons of copper, large tonnages of zinc, lead and manganese, and millions of ounces of gold and silver. Despite this immense wealth, ...
Wulfenite and associated minerals from the Red Cloud mine, La Paz County, Arizona.(Brief article)
May 01, 2008; Wilson, Wendell E. ... Wulfenite specimens from the Red Cloud mine in the Silver District of La Paz County, Arizona are widely regarded as the world's most desirable examples of the species. Top-quality crystals over 5 centimeters in size are rare, but fine specimens have been reaching the market sporadically ...
Diamonds from the Crater of Diamonds, Pike County, Arkansas.(Brief article)
May 01, 2008; Howard, Michael.J ... Crater of Diamonds, located southeast of Murfreesboro in Pike County, Arkansas, has a rich 100-year history of diamond mining. The early 1900s saw several attempts to mine the property commercially. From 1952 to 1971 the land was a privately held tourist attraction, but it has since become ...
Quartz and associated minerals from Hot Springs, Arkansas.(Brief article)
May 01, 2008; Frazier, Si ... Fine Arkansas quartz crystals of captivating luster, clarity and sharpness have been collected and traded as specimens since the mid-19th century, and before that were esteemed by the early Native Americans of the region. Arkansas quartz crystals have been responsible for stimulating in ...
Tourmaline and associated minerals from the Himalaya mine, Mesa Grande, San Diego County, California.(Brief article)
May 01, 2008; McLean, John ... The Himalaya dike system in the Mesa Grande district of San Diego County, California consists of several relatively thin and remarkably continuous pegmatites that crop out along the east and north flanks of Gem Hill. The Himalaya mine is the northernmost and historically the most ...
California gold and associated minerals from the Colorado Quartz/Mockingbird, Red Ledge and Eagle's Nest mines.(Brief article)
May 01, 2008; Leicht, Wayne C. ... California's crystallized gold tends to come from small near-surface lode deposits referred to as "pocket mines." Oddly enough, most of these occurrences are not in the famous Mother Lode region, but rather are located in either the East Belt or in an area north of the Mother Lode that is ...
Benitoite, neptunite and associated minerals from the Benitoite Gem mine, San Benito County, California.(Brief article)
May 01, 2008; Gray, Michael ... The Benitoite Gem mine is located in the Coast Range Mountains in San Benito County, north of the town of Coalinga. The first specimens of benitoite and neptunite were found in 1907, and extensive tunneling took place for several years to extract benitoite gemstone rough. The mine, known ...
Tourmaline, beryl and other pegmatite minerals from the peninsular ranges, Southern California.(Brief article)
May 01, 2008; Fisher, Jesse ... The gem and rare-element-bearing pegmatites of southern California have been the most prolific source of elbaite, morganite beryl, kunzite spodumene, and other pegmatite minerals in North America since their discovery over 100 years ago. The province ranks among the major gem and ...
Tourmaline and associated minerals from the Tourmaline Queen mine, Pala, San Diego County, California.(Brief article)
May 01, 2008; Larson, William ... The Tourmaline Queen mine, located on the northeast slope of Queen Mountain in San Diego County, California, is among the most well-known tourmaline-producing pegmatites in the world. It was originally staked as a quartz claim by Frank Salmons and others in 1903, and within a few years had ...
Colorado gold from the Dixie mine, Ground Hog mine and Farncomb Hill, Breckenridge.(Brief article)
May 01, 2008; Raines, Ed ... A number of Colorado localities have produced exceptional crystallized gold specimens. Among the most notable are the Dixie mine on Ute Creek, in the Chicago Creek mining district of Clear Creek County (famous for leaf gold and wire gold); the Ground Hog mine in the Gilman mining district ...
Aquamarine and associated minerals from Mount Antero, Chaffee County, Colorado.(Brief article)
May 01, 2008; Jacobson, Mark ... At 14,269 feet, Mount Antero in Chaffee County, Colorado is the highest known mineral locality in the United States. Nelson ("Nels") Wanemaker and J. C. H. Grabill first found aquamarine crystals on Mount Antero in July of 1881. Ever since then, intrepid collectors have been finding ...
Colorado Barite and associated minerals from Weld and Mesa counties and southeastern Colorado.(Brief article)
May 01, 2008; Kile, Daniel ... Of the many localities for barite in Colorado, three have yielded specimens of world-class caliber. Perhaps the most famous occurrence, known since 1892, is at Stoneham, a small town in Weld County on the high plains of northeastern Colorado. The spectacular groups of blue crystals, often ...
Rhodochrosite and associated minerals from the Sweet Home mine, Alma, Colorado.(Brief article)
May 01, 2008; Lees, Bryan K ... Discovered in 1873 and developed for its silver ore, the Sweet Home mine near Alma, Colorado is today known for its strikingly beautiful red rhodochrosite crystals, acknowledged as the world's finest. For over 90 years, the mine was intermittently worked with moderate success as a silver ...