 | | Journal (article/letter/editorial) | | Department of Geology Auburn Universit Rutile=Included Quartz Downloaded by [McGill University Library] at 05:41...issueâs Connoisseurâs Choice. The specimen, rutilated quartz from Waterbury, Vermont (see fig.), is interesting...that is in considerable demand by collectors. Rutilated quartz is also a popular gem material, having been...cabochons, spheres, and other ornamental devices. Rutilated quartz is known by a number of names that include...(loveâs arrow), and Venusâ hair stone. The host quartz may be colorless, smoky, or amethystine and occurs |  | | Journal (article/letter/editorial) | | beautiful, transparent, faceted gem stones of rose quartz from Brazil, weighing 73.50 carats and 17.50 carats...supplied him. They now enhance the quartz gems. A synthetic quartz crystal of 118.8 grams was received...Murray Hill, New Jersey, presented a large synthetic quartz crystal weighing 467 grams to the synthetic mineral...group of rose quartz crystals from Minas Gerais, Brazil, now to be seen in the quartz cases of the TiffanyMorgan...6.10 carats respectively, from Santa Cruz, Sonora, Mexico, and an excellent kornerupine of 7.45 carats |  | | Journal (article/letter/editorial) | | and fluorite, Blanchard mine, Socorro County, New Mexico. Peter J. Modreski photo. MarchlApril: Wulfenite...May/June: Legrandite, Ojuela mine, Mapimi, Durango, Mexico. Houston Museum of Natural Science specimen, Harold...Rhodochrosite with tetrahedrite, chalcopyrite, and quartz, Sweet Home mine, Alma, Park County, Colorado....Arem, J. E., see Media Reviews Arizona, Arizona-Sonora Desert Museum, Tucson, 34-38; Bisbee Mining & Historical...Arsenopyrite, Arkansas, 135 Arsentsumebite, New Mexico, 67 Art, see Robinson, S.; Sicree, A. A. Artinite |  | | Journal (article/letter/editorial) | | attractions for the mineral collector. The Arizona-Sonora Desert Museum (2021 N. Kinney Rd.) is sponsoring...for purchase will be an array of minerals from Mexico and gems and fossils from around the world. In...was devoted to preserving the mineral heritage of Mexico. There is an admission charge; hours are 9-5 Monday...from a near-flawless, transparent Brazilian rutilated quartz crystal and took seven years to complete....minerah quadrangle include a 3.5-ton piece of rose quartz from Quadeville as well as oversized samples of |  | | Catalog/List | | ¡¡¡¡ 36 2 Fl/R ALABANDITE Manganese sulfide Mexico Puebla, Mina Preciosa Sangue de Cristo ~rly pure...White xlline with cymatolite, good study ... New Mexico Taos County, near Dixon Nearly pure white xlline...aggregates in magnetite with stilpnomelane, penninite, quartz ... HASTINGSITE Iran calcium sodium potassium alumino-silicate...Bory Pink crystals with lepidolite and quartz ....... Mexico Baja California, San Juan Bautista Pure...South Dakota Rapid City Brownish-pink mass with quartz and mica ..... CHIASTOLITE California Madera County |  | | Show/Event (guide) | | which the Spaniards spelled as âTucson.â In 1821 Mexico won independence from Spain and hoisted a new flag...southernmost portion of the state was purchased from Mexico in 1853, bring ing to an end three centuries of...call 791-2929 for reservations. Museums Arizona-Sonora Desert Museum World renowned for its desert-habitat...men. Located just a few minutes from the Arizona-Sonora Desert Museum. (883-0100) Restaurants Italian...quite dis tinct from that found in Texas, New Mexico and California. Oriental A favorite among the |  | | Journal (article/letter/editorial) | | this final section are separate discussions of quartz, the feldspars, the micas, cookite, schorl, and...commodities, with separate sections on garnet, rose quartz, scapolite, kunzite, and topaz pegmatites. Each...25-inch in McMahanâs book). Other terms such as rutilated quartz, on page 20, seem misplaced and are confusing...Mexican states of Aguascalientes, Chihuahua, Durango, Sonora, and Zacatecas are shown with, not surprisingly... rhodochrosite stalactites from Argentina, and quartz varieties with rutile, epidote, and âsageniteâ |  | | Journal (article/letter/editorial) | | Producers, Bruno Martinez 130 Nte., Durango, Dgo., Mexico, currently advertising very fine agate material...N E W T E L L U R I U M MINERALS Moctezuma, Sonora Mexico SPIROFFITE ( M n ; Z n h T e a O , occurs as...pale brown tabular cleavage plates imbedded in quartz; some associated w i t h denningite, t e l l u...0 Âť . It is found as green cleavable masses in quartz. Associated minerals may be tellurite, s p i r... 0 0 . TELLURITE TeOi Fine orange crystals o n quartz generally associated w i t h minor amounts of the |  | | Journal (article/letter/editorial) | | alteration are dominated by magnetite + rutilated (i.e., rutile-bearing) quartz and were partially replaced by...by later pyrite, clear quartz, carbonate minerals, chlorite, clay, and chalcopyrite. Almost all magnetite...Homogenization temperatures of fluid inclusions in clear quartz associated with Au-Cu-Ag mineralization suggest...to minor amounts (less than 5 vol %) of rounded quartz, K-feldspar megacrysts with rapakivi textures,...specimens) and lesser amounts of plagioclase and quartz. Intrusion breccia makes up the majority of the |  | | Journal (issue) | | Sulfur Crystals, San Felipe, Baja California, Mexico Brilliant canary-yellow crystals averaging size...00, 2x2 $1.50, 2x3 $2.25. Chalcopyrite Xls on Quartz, XIs Concepcion Del Oro, Zacatecas, Mex. Brassy...crystals of ,/j" to j/2" size perched on translucent quartz crystals. Choice cabinet display pieces. 1x2 .75...Locality. Smithsonite, Concepcion Del Oro, Zacatecas, Mexico Unusual chocolate-brown botryoidal groupings. About...Cuprian-Austinite Crystals, Mina Ojuela, Mapimi, Durango, Mexico One of the rarer ones from Mapimi. Consists of |  | | Catalog/List | | âclassicâ Rhodochrosite with associated Pyrite and Quartz from the Sweet Home Mine in Colorado An unusually... Smithsonite from the iconic Kelly Mine in New Mexico A âgemâ quality specimen Tanzanite crystal in matrix...Iron. When Gold occurs with a matrix rock like Quartz, a Specific Gravity test is often performed to...exquisite formations often atop matrix rock like Quartz. Gold nuggets are typically valued at some multiple...t) and displays only a minimal amount of visible Quartz on the surface. Natural processes have smoothed |  | | Book | | Marcasite 46 Proustite Azurite 50 Galena Quartz 58 102 106 Copper 54 90 94 Pyrite Malachite...lections. Other occurrences in Japan, aoe nd 13 Mexico provide fine but less impressive specimens of bournonite... and Freiburg, in Saxony, Germany. Guanajuato, Mexico, and Colquechaca, Bolivia, have produced perhaps...Germany, and Mexico; pyrite from Elba; pyrrhotite from Mexico; arsenopyrite from Germany and Mexico; chalcocite...light-purple crystal groups of fluorite from Naica, Mexico, are becoming highly regarded but are still not |  | | Journal (article/letter/editorial) | | paper of the evening was by J. F. Kemp on The great Quartz Vein at Lantern Hill, near Mystic, Conn.' The speaker...sea level. This portion is of hard milky white quartz. The southern extension of the vein forms Long...pulverulent quartz, which, however, perfectly preserves the comby structure of the quartz vein. It consists...consists of innumerable interlocking masses of quartz crystals. I t is but slightly iron stained in a few...laminations of the gneiss. I t is one of the largest quartz veins known in the East and is of very pure silica |  | | Journal (issue) | | Spann collection; Tom Spann photo. Fluorite with quartz, 11 cm, from Fujian Province, China. Keith & Diane...Kevorkian collection; Jordan Root photo. Fluorite on quartz, 13 cm, from the Yaogangxian mine, Chenzhou Prefecture...what I found was chert with occasional well-formed quartz crystals. I had an insatiable curiosity to know...5-mm view, from the Ojuela mine, Mapimi, Durango, Mexico (#1001). Michael Michayluk photo. Supplement to...my journey through the mineral world collecting quartz in Arkansas. At the same time I collected fluorescent |  | | Journal (issue) | | of CVD Synthetic Diamonds Cultured Pearls from Mexico X-Ray Fingerprinting of Diamonds THE QUARTERLY...26 Cultured Pearls from the Gulf of California, Mexico Lore Kiefert, Douglas McLaurin Moreno, Enrique...harvested from the Pteria sterna oyster in Guaymas, Sonora, Mexico. 40 X-Ray Fingerprinting Routine for Cut...Herderite update ⢠Large opal doublet ⢠Three rutilated quartz catâs-eyes ⢠Spurrite ⢠Bicolored catâs-eye...with artificial resin ⢠Petroleum inclusions in quartz from Pakistan ⢠New Swarovski triplet loupe ⢠Conference |  | | Catalog/List | | A2 A2 75p 50p ÂŁ1 ÂŁ1 Abbots Cliff, Folkestone Mexico (Barstow) Judkins, Warv,ickshire Llanqwnoq Wales...Arsenooyrite Sphalerite Silver Mines Eire Chihuahua, Mexico (Barstow) Pyrrhottite Somerset Diurleite (Barstow)...Iridescent & gold Goethite Lodestone Limonite Quartz Quartz/Barite Opal Cuprite/Coooer Cassiterite Cassiterite...Hematite Quartz Cuorous Vinston Micaceous Hematite Crednerite Brookite Rose Quartz Hematite Quartz on dolomite...dolomite Quartz Limonite after Pyrite Quartz Pvrolusite Quartz Opal 76A 76G 108G 110S 1E 86E 58F 1198 |  | | Book (edition) | | sand localities in the United States, Canada, and Mexico where gems have been and can be found. This is...4B^ Diamond M Tourmaline ^P Ruby. Sapphire O Quartz crystal ^J^ Garnet __ Azurite, Malachite, Chrysocolla...and Herbert Grand Girard, both of Santa Fe, New Mexico, Ken Kyte of Covington, Louisiana, Merton A. Young...Florida. Still others are to be found in Canada and Mexico. What you cannot collect in person you can often...with respect to one another. gem minerals The quartz gems, such as amethyst, form crystal prisms with |  | | Journal (issue) | | in Vesicular Basalt from ZimapĂĄn, Hidalgo State, Mexico Robert Raymond Coenraads and Alfonso Rosas Zenil...jadeite with copper inclusions ⢠Labradorite from Mexico ⢠Gem news from Mogok, Myanmar ⢠Moonstone from...from Madagascar ⢠Phenomenal fire opal ⢠âSunsetâ quartz from Brazil ⢠Swedish Blue (slag) and Swedish Iron...Tahitian cultured pearls ⢠Treated violetish blue quartz from Brazil ⢠Circular inclusions in a diffusion-treated...of the spectra. Untreated cultured pearls from Mexico and South America may show a GEMS & GEMOLOGY |  | | Catalog/List | | 64 W 64 66 W 66 67 W 67 69 Selenite, Chihuahua, Mexico \Vood, Petrified Iron Pyrite; Leadville, Colorado...Franklin, N. J. Quartz, Blue Rhodonite Copper, Michigan Az.urite, Bisbee, Arizona Quartz Group. Hot Springs...Dundas, Tasmania Quartz Group, Hou1Zhton Co., Michigan Carnotite, Montrose Co., Colorado Quartz var. Agale...Agale, blue, polished, Uruguay Quartz, var. Agate, red, Uruguay STPaltite & Niccolilc, polished slab, CoÂ...England S1ihnite, Crystallizďż˝d with Crystallized Quartz, Japan Gnlena on Ruby Jack. Toplin, Mo. Cinnabar |  | | Journal (article/letter/editorial) | | Apartado 8 0 , San Miguel De A l l e n d e , Gto. Mexico. 1 9 5 9 CATALOGS SENT O N REQUESTâ These list...Manuel chrysocolla, snow flake agate, Socorro, N. Mexico. Rare crystals and specimens, and most any c u...apache tears, snowflake obsidian, jasper, rose quartz, petrified w o o d , golden tigereye, amethyst...snowflake obsidian $ 1 . 0 0 lb. Specimensâdrusy quartz on quartz crystals, 2 x 2 , 75c, sea green f o l i ated...alternating bands of deep purple and w h i t e quartz, $ 3 . 2 5 l b . ; aragonite, takes nice polish |  | | Journal (issue) | | Voynick A Breathtaking Combination Found in Sonora, Mexico By Bob Jones 51 LOOKING BACK 20 EPIDOTE A...BRUNEAU-PATTERN JASPERS Discoveries in Oregon, Idaho and Mexico Field Notes ....................................Covellite with iridescent play-of-colors sitting atop a quartz matrix, West Colusa Mine, Butter Mining District...Catalog and Bid at HA.com/8036 Rhodochrosite with Quartz & Sphalerite Sweet Home Mine (Home Sweet Home Mine...colors. Iridescence also appears in certain forms of quartz. Rock crystal from a locality in Indiaâs Deccan |  | | Journal (issue) | | ................................139 Notes from Mexico by W. D. Panczner ...............................cm tall. Photo by Olaf Medenbach. See Notes from Mexico in this issue for informa tion on the new Mexican...Khedive, and to the west, the Wedge. The ore is quartz, carrying streaks of galena and gray copper (tetrahedrite)...chalcopyrite, chlorite, calcite, epidote, fluorite, milky quartz, pale pink rhodochrosite and manganocalcite. (AES)...into Figure 5. Calcite crystals to 3.8 cm, on quartz, from the 630 Mud drift, 2100 level, Camp Bird |  | | Journal (issue) | | ROCKS AND MMiRALS Mineraloqy RUTILE IN QUARTZ Minas Geraes, Brazil Anthony J. Di Donato Collection...GALENA CRYSTALS, BARITE CRYSTALS, CALCITE CRYSTALS, QUARTZ CRYSTALS ETC. EACH PIECE TRIMMED AND SELECTED FOR...slender, lus trous rutile crystals in colorless quartz. The specimen was found in Minas Geraes, Brazil...terminated crystals. Here the color is nut brown. Quartz xls are not common and of no special interest....Madagascar (ampangabelite, samarskite, dumortierite on quartz, thorianite on calcite, etc.) etc. GEMS (rough) |  | | Book (edition) | | Diamond M Tourmaline fQl Ruby, O Sapphire Quartz crystal 'y^ Garnet â Azu rite, Malachite, Chrysocolla...and Florida. Still others are found in Canada and Mexico. Every state, as a glance at the list of gem locations...from Derbyshire or, perhaps, a pyramid of smoky quartz from Cumberland. The next it may be rock crystal...Talc 6. Orthoclase feldspar 2. Gypsum 7. Quartz 3. Calcite 8. Topaz 4. Fluorite 9. Corundum...faces are placed with respect to one another. The quartz gems, for example, such as amethyst, form crystal |  | | Journal (article/letter/editorial) | | M M Cariboo Mining Division 175. Cariboo Gold Quartz, B.C .............. M .40 Tr M .55 Tr M...Tr M 0.53 Tr Tr Tr W 0.47 Mexico Cananea ............ Sonora.............. M 40 Tr .40 .40...ten sphaleritesfrom the Western United States and Mexico is 0.43 per cent. In contrast,sphaleritesfrom Eastern...These minute inclusionsmay well be rutile. Rutilated quartz is occasionally noted,rutile is presentin...WESTERN CAN.4DA. 335 Limited, and the CaribooGold Quartz Mining Company,Limited, made scholarshipfunds availablefor |
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