 | | Journal (article/letter/editorial) | | I98l A pyrope-spinel(alkremite) xenolith from Moses Rock Dike: first known North American occurrence EreNe...alkremitexenolith from MosesRock Dike, San Juan County, Utah, a kimberlite pipe. Primary garnet and spinel...secondaryminslals that account for lessthan 5 percent of the rock. The presenceof ironbearing kornerupine in the secondaryminslnl...xenolith from Moses Rock Dike. a kimfsdils pipe on the southeasternedge of Monument Valley, Utah (McGsfshin...garnet-spinel"alkremite" (a mnemonicname of Russian origin for a rock enriched in Al, Si, and Mg (Pooomslsnko, 1975)) |  | | Journal (article/letter/editorial) | | 1329 Arizona Economic geology Aluminum, Maricopa county, Wickenberg (Sheridan, Michael F , et al.) tt-t2...(Mclean, W. John, er a/.) 7-E 1103 Hemihedrite,Pinal county, Florencemine, Maricopacounty, Wickenburg,Rat Tail...a/.) 7-8 1088 Kinoite, SantaRita mountains,Pima county (Anthony, John W., er a/.) 5-6 7O9 Phoenicochroite...and steam in Sl-units 9'10 1822 (Schmidt, Ernst.) Rock and mineral analysis 7-E 1453 (Maxwell, J. A.) ...Barros, er a/.) 1.2 224 Breccia Intrusive Utah, San Juan county, MosesRock dike, kimberlite (McGetchin, |  | | Report (chapter) | | crust and upper mantle xenoliths from Moses Rock Diatreme, Utah, has led to the discovery of evidence...fragment of the Farollan plate. Introduction Moses Rock Diatreme (Fig. 1) is a 6 km long fissure eruption...There are two contemporaneous Tertiary volcanic rock types occurring on the Colorado Plateau; a) Diatreme...microbreccia (SUM); a complex breccia of comminuted wall-rock and ultramafic material, held together by a fine...Park (Roden 1977) and Moses Rock (this study). The crystallization ages for these rock-types determined by |  | | Journal (article/letter/editorial) | | garnet-pyroxenite xenolith from the diatreme at Moses Rock, Utah, document storage and transport of water and...pyroxenes was caused by growth in chlorite-dominated rock. Derivation from garnet lherzolite is established...contacts between garnet peridotite and other mantle rock in response to fluid flow. Pressures _> 2.2 GPa...Sciences, University of Texas, Austin, TX 78712, USA Editorial responsibility: 1.S.E. Carmichael ciated...pyroxenite included in the Moses Rock diatreme on the Colorado Plateau. Moses Rock (37~ 110o44' W) is in southernmost |  | | Report (issue) | | CALITI ES OF UTAH by Kenneth C. Bullock UTAH GEOLOGICAL AND MINERAL SURVEY a division of the UTAH DEPARTMENT...JANUARY 1981 MINERALS AND MINERAL LOCALITIES OF UTAH by Kenneth C. Bullock Nature displays her most...State of Utah. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 County Listings.... . . . . . . 1 Chapter II. Mining Districts of Utah . . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . 4 Mineral Localities Listed by County . . . . . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | lamellae of ilmenite, picroilmenite (geikielite), and corundum; these are documented for the first time in diamond-associated...diamondiferous eclogites, including kyanite- and corundum-bearing eclogites from kimberlites (Sobolev et...in all types of eclogites, including ilmenite-, corundum-, kyanite-, and coesite-bearing samples that may...rutile-diamond intergrowths were observed, garnet-pyroxene rock (Sobolev and Shatsky, 1990), and coesite-bearing...Victor mine (sample RV-15) containing oriented corundum (dark) and ilmenite (light) sigmoidal rods, general |  | | Book (volume) | | A Location Guide for Rock Hounds in the United States SOUTH DAKOTA This northwestern Great Plains state...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes, stream beds...438 A Location Guide for Rock Hounds in the United States CUSTER COUNTY AREA: The November Mine, 1 |  | | Journal (article/letter/editorial) | | Mineral inclusions and coexisting minerals of gem corundum from the Thailand area analysed by SEM-EDS in...could have crystallized in high-pressure metamorphic rock of ultramafic/ mafic composition. In contrast, Thai...crystallized in high-grade metamorphic (gneissic) rock or from magmas of highly alkaline composition, located...Key-words: mineral, inclusion, chemistry, SEM-EDS, corundum, ruby, sapphire, Thailand, origin. 1. Introduction...stage. However, corundum is known as inclusions in diamond (Hutchison et al., 2004). Corundum from basaltic |  | | Book (volume) | | Ohio OHIO Only Paleozoic rock formations underlie Ohio’s Pleistocene surface debris and Quaternary soils...ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...areas of drainage in 336 A Location Guide for Rock Hounds in the Untied States townships of Franklin...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE |  | | Book (volume) | | Ohio OHIO Only Paleozoic rock formations underlie Ohio’s Pleistocene surface debris and Quaternary soils...ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...areas of drainage in 336 A Location Guide for Rock Hounds in the Untied States townships of Franklin...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE |  | | Journal (article/letter/editorial) | | online 11 January 2012 Keywords: Garnet peridotite Corundum Ultrahigh-pressure metamorphism REE partitioning...(2011) reported trace-element data for minerals in corundum-bearing garnet-clinopyroxenite from the northern...based on the co-existence of spinel, garnet and corundum (Abbott et al., 2005, 2007). The paper by Gazel...by Hattori et al. (2010a), who proposed that the rock is a metamorphosed ultramafic cumulate that originally...to further discredit a possible LP origin of the rock. The main premise of the paper by Gazel et al. (2011) |  | | Report (chapter) | | Bryand Global Sciences Center, Orono, ME 04469-5790, USA 3 National Institute of Polar Research, 1-9-10...University of New Mexico, Albuquerque, NM 87131-0001, USA 5 Department of Earth and Planetary Sciences, Graduate...Lützow-Holm Complex, East Antarctica, where two ruby corundum (0.22–0.34 wt% Cr2O3)–plagioclase lenses are found...(.An34) þ sapphirine + spinel ! kornerupine þ corundum (ruby) þ plagioclase (,An82) + (fluid or melt)...(Na, K, + Si in fluid) ! tourmaline þ biotite þ corundum (sapphire) + magnesite + andalusite þ (Ca in fluid) |  | | Journal (article/letter/editorial) | | Brookins, D. G. Metastibnite from The Geysers, Sonoma county, California Brown, F. H. Zoning in some volcanic...Chile Clark, Alan H. Tungstenian wulfenites, Mina San Samuel, Cachiyuyo de Llampos, Chile Clark, Joan R...beta-Be(OH)1, from the Rode Ranch pegmatite' Llano county, Texas Einaudi. Marco T. An iron-sensitive stain...rich minerals frorn rhyolite in the Thomas range, Utah Frondet, Clifford. Colloform hydrothermal muscovite...u d y of pentlandite Huang, W. H. Dissolution of rock-forming silicate minerals in organic acids; simulated |  | | Journal (article/letter/editorial) | | 25%) and violet prismatic corundum (3 mm, 5l}Vo,lamellar twinning). The corundum forms a lineated Samples...corunBellsbank dum grains. Alkremites F and G lack corundum, and are SpecimenBDl830 (thin sectionsA and B)...euhedral garnets(5 mm). Marginal inclusions of corundum (0.5 garnets(5 mm) and rare spinel outlined by...or subhedral spinel, and of euhedralprismatic corundum, suggests an igneousorigin. The spinelrims around...not have formed by subsolidusreaction between corundum and the adjacentgarnet. Although somewhatambiguous |  | | Journal (article/letter/editorial) | | (including diamondcontaining, with kyanite or corundum) is characteristic of the pipes in the Roberts...E. A. , 1966, ECLOGITE XENOLITHS IN THE ALKALIC -ROCK DIATREMES IN PAMIR: AN SSSR Doklady, v. 169, no...KIMBERLITE AND RELATED ROCKS FROM THE MOSES ROCK DIKE, SAN JUAN COUNTY, UTAH: Amer. Mineralogist, v. 55, no |  | | Report (volume) | | ............................................... Utah...................................................about 1,250,000 barrels. The production of natural rock cement was five times the combined production and...than 86,000,000 barrels. The production of natural rock cement and the imports of foreign cement are so...Compendium of the mineral resources of Arkansas, Little Rock Board of Trade Bulletin, 1912. Eakle, A. S., Minerals...Nashville, Tenn. California____.Mr. William H. Storms, San Francisco. Prof. A. F. Rogers, Stanford University |  | Dymshits, Anna M., Dorogokupets, Peter I., Sharygin, Igor S., Litasov, Konstantin D., Shatskiy, Anton, Rashchenko, Sergey V., Ohtani, Eiji, Suzuki, Akio, Higo, Yuji (2016) Thermoelastic properties of chromium oxide Cr2O3 (eskolaite) at high pressures and temperatures. Physics and Chemistry of Minerals, 43 (6) 447-458 doi:10.1007/s00269-016-0808-7 | Journal (article/letter/editorial) | | be stable in this pressure range and adopts the corundum-type structure. Using obtained thermoelastic parameters...Cr-omphacitite xenolith from the Moses Rock ultramafic diatreme (Utah, USA) (Schulze et al. 2014). Cr2O3...Chromium oxide such as Al2O3 and Fe2O3 adopts the corundum-type crystal structure with space group R3̄c at...spectroscopy suggested structural distortions in the corundum lattice above 13–15 GPa (Mougin et al. 2001; Shim...calculations, a pressure-induced phase transition of the corundum type into the Rh2O3 (II)-type in Cr2O3 may occur |  | | Book (edition) | | MARIN COUNTY FREE LIBRARY 3 1111 00289 4184 \ I s Fifth Revised Edition A complete, state-by-state...Easy-to-understand instructions for recognizing rock formations; glossary. How to identify gem minerals...is a precise explanation of h< to recognize the rock formation* which gems occur. The tabular Gem ... contents fun to hunt for gems 1. It's 2. How 3. Rock formations 4. How 5. Characteristics of important...that comes from opening a nodule or a pocket in rock and being the first to see a sparkling crystal fresh |  | | Journal (article/letter/editorial) | | garnet + spine1 (alkremite), corundum + garnet (corganite) and corundum + garnet + spine1 (corgaspinite)...K-pargasite, fassaitic pyroxene and secondary spinel. Bulk-rock major elements are depleted in SiOr and enriched... 1979; EXLEYef al., 1983) and the Moses Rock kimberlite dike, Utah (PADOVANI and TRACY, 1981). In a recent...modal amounts of corundum. MAZZONE and HAGGERTY (1989) coined the terms corganite (corundum + garnet) and...and corgaspinite (corundum + garnet + spinel) for these assemblages which, although chemically similar |  | | Book (volume) | | A Location Guide for Rock Hounds in the United States Collected By: Robert C. Beste, PG 1996 Second...Second Edition A Location Guide for Rock Hounds in the United States Published by Hobbit Press 2435 Union...63125 December, 1996 ii A Location Guide for Rock Hounds in the United States Table of Contents Page...................333 iii A Location Guide for Rock Hounds in the United States Ohio ............................................................387 Utah................................................ |  | | Book (volume) | | A Location Guide for Rock Hounds in the United States Collected By: Robert C. Beste, PG 2005 Third Edition...Edition A Location Guide for Rock Hounds in the United States Published by Hobbit Press 2435 Union...63125 December, 1996 ii A Location Guide for Rock Hounds in the United States Table of Contents Page...................333 iii A Location Guide for Rock Hounds in the United States Page Ohio .......................................................387 Utah................................................ |  | | Book (volume) | | that data up to the end of 1974. John Sinkankas San Diego, California July, 1975 JOHWSTUPAW.N19,901...commerce. Coarser gemstones, or those which are rock-like in character or abundance, are treated in still...region; the Southern Onyx and Marble Company of San Diego, California, furnished information and a photograph...supplied by Dowse’s Agate Shop, Salt Lake City, Utah, by William J. Bingham of St. Paul, Minnesota, by...of the Kobuk jade locality. Descriptions of San Diego County, California, gemstones and the mines in which |  | | Book (volume) | | A Location Guide for Rock Hounds in the United States Collected By: Robert C. Beste, PG 2014 Fourth...Fourth Edition A Location Guide for Rock Hounds in the United States Published by Hobbit Press 2435 Union...printing December, 1996 ii A Location Guide for Rock Hounds in the United States Table of Contents Page...................389 iii A Location Guide for Rock Hounds in the United States Page Ohio .......................................................452 Utah ............................................... |  | | Journal (article/letter/editorial) | | subsequent independent depth information from that rock body (Bozhilov et al. 1999) and others (e.g., van...consisted of natural mineral powders [66 vol% olivine (San Carlos), 8 vol% each of Cpx, Opx, and Grt (all from...comparison with a control grain of olivine from San Carlos, AZ, previously analyzed by WDS microanalysis...size for analysis and line scans was about 4 nm. San Carlos olivine was used as standard to determine...metastable phase. For example, nucleation of TiO2 in corundum at atmospheric pressure initially produces the |  | | Journal (article/letter/editorial) | | com/locate/lithos Corundum inclusions in diamonds—discriminatory criteria and a $ corundum compositional...Planetary Laboratory, University of Arizona, Tucson, AZ, USA Research School of Earth Sciences, Australian National...online 1 June 2004 Abstract Mineral inclusions of corundum are reported from diamonds from alluvial deposits...diamond and expand on the database of ruby and white corundum inclusions. Ruby inclusions are found to occur...f 770 km. Mineral associations involving other corundum inclusions were not observed; hence, their depth |
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