 | | Journal (article/letter/editorial) | | new occurrences and discoveries will be used. AUSTRIA Karl Pakleppa of Dusseldorf, West Germany, sent...honey-yellow scolecite crystals from Koschack in Carinthia. The crystals are up to 3 mm long and are on albite...average 2 mm. The crystals resembled those of prehnite and occur in rosettes as well as singly. A check...refrac tive index agrees with published data for prehnite. CANADA Gussen's Minerals of Clearbrook, British...material. Quartz crystals occur at the "exhausted" road cut in Mexico, Maine according to Ray Woodman of Auburn |  | | Book | | found with other high-temperature minerals such as prehnite, pumpellyite, or epidote. Lieber (1978) described...1.5 mOl across, had crystallized with epidote, prehnite, quartz, and pyrite during 20/ ORIGINS OF ZEOLITES...indicator'of high temperature because it is found with prehnite, pumpellyite, and epidote in the lower portions...indicator of temperature. Laumontite associated with prehnite, pumpellyite, and epidote does indicate a high-temperature...zeolites in the cavities, and is associated with prehnite, probably formed at a high temperature, whereas | | | Book | | found with other high-temperature minerals such as prehnite, pumpellyite, or epidote. Lieber (1978) described...1.5 mOl across, had crystallized with epidote, prehnite, quartz, and pyrite during 20/ ORIGINS OF ZEOLITES...indicator'of high temperature because it is found with prehnite, pumpellyite, and epidote in the lower portions...indicator of temperature. Laumontite associated with prehnite, pumpellyite, and epidote does indicate a high-temperature...zeolites in the cavities, and is associated with prehnite, probably formed at a high temperature, whereas |  | | Book (edition) | | dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....near Sobotfn, Moravia, Czech Rep., in skarn at the Sankt Christoph mine, near Breitenbrunn, Saxony, Germany...Grossgreiner Mt., overlooking Zillertal Valley, Tirol, Austria, and at Passo di Vizze, Trentino-Alto Adige, Italy...Sweden, at Franklin. Sussex co.. New Jersey, also at Sankt Andreasberg.Harl Mts., Germany.CM 18. 191. 1980...quartz crystals, all Spain. With scolecite and prehnite in tholeitic dolerite at St.-Pandelon, near Dax |  | | Journal (article/letter/editorial) | | Associated minerals include calcite, quartz, prehnite, danburite, axinite, garnet, and the zeolites...Deerfield, Franklin County, where it occurred with prehnite. Crystals from this locality were so unusually...the Lane quarry, Westfield, Massachusetts; stone cut by Anthony Thomas; Harvard Mineralogical Museum specimen...(Mason 1960); the Erie Railroad cut and tunnel, and the New Jersey Railroad cut, Jersey City; the New York–West...York–West Shore Railroad cut at Weehawken; and the old Snake Hill and Penitentiary quarries at Secaucus. |  | | Journal (issue) | | Mineralogy-Petrology Burgring 7, A-1014 Vienna, Austria ustria has many small occurrences which are mineralogically...public and private collections. A INTRODUCTION Austria can be divided into three principal areas: the...the eastern Alps (covering roughly two-thirds of Austria), and the Tertiary basin which separates them and...size, these minerals are poorly known out side Austria because generally only a few specimens or a single...remark able holmquisite crystals from Koralpe in Carinthia, and so on. We present here a collector’s overview |  | | Journal (article/letter/editorial) | | Consequently, most collectors are familiar with prehnite, typically as pale green botryoidal or reniform...Virginia. Recently, however, extraordinarily fine prehnite specimens have appeared on the collector market...for its most famous locality, Tsumeb. One such prehnite specimen has been nominated for this issue’s Connoisseur’s...Connoisseur’s Choice (see fig.). Prehnite is best known in shades of green that vary from pale to very...it exhibits a vitreous-to-weak pearly luster. Prehnite has cleavages on [ 001 ) and { 110) that are good |  | | Journal (article/letter/editorial) | | marcasite. A major mining district, the Upper Mississippi Valley zinc-lead district, was in these rocks in...and copper minerals were found. Mining in this district ceased in the late 1970s. A branch of the Middle...Keweenaw Peninsula. Many of the minerals (copper, prehnite, laurnontite, and datolite) found in the Upper...magnetite, orthopyroxene (Laybourn 1979). Quarry Road quarry. A water-filled quarry and nearby spoils...quarry exposes Proterozoic dolomitic marble cross-cut by diabase dikes in the NW 114 NW 1/4 sec. 22 T.44N |  | | Journal (article/letter/editorial) | | Gage of California. "The principal rock of the district is granodiorite. The vein is a quartz-filled fissure...only the name of the country, such as Germany or Austria." The clipping showed a picture of the 350 million...found in only three places in the World, Germany, Austria, and Canon City. "Locally, Kessler said, remains...to Rock the day I received your letter. "On the road to Rock (which by the way consists of 4 houses and...is a graveled road, branching off to the right. At a red schoolhouse, you take a road to the left and |  | | Journal (article/letter/editorial) | | omitted from locality information. Where lot and district numbers are given, it is necessary to use topographic...the photographs. Baldwin County Milledgeville district—between the State Sanitarium and the Oconee River:...east of Commerce on S.R. 59, and 0.8 km off Browns Road: beryl (Furcron, 1959). Hills property—near Commerce:...Commerce: ferrocolumbite (Cook, 1978). Lula district—Standridge property, about 7.0 km east of Lula: kyanite...(chryso lite, olivine) (Teague, 1956). Jefferson district—9.7 km southwest of Jefferson on S.R. 11, northwest |  | | Journal (article/letter/editorial) | | January 2015 An Occurrence of Prehnite in the Red Mountain Mining District Ouray County, Colorado AN UNUSUAL...UNUSUAL OCCURRENCE of prehnite was discovered at the Belle of the West claim in the summer of 1992 by...by the author and Ruth Morton. The prehnite occurs in vugs as well-developed microcrystals associated with...limestone and volcanic flows. Until this discovery, prehnite had been reported from only two localities in...“Catalogue of the Minerals Found in Colorado” listed prehnite as occurring in the mines near Fairplay. Later |  | | Journal (article/letter/editorial) | | Road-Cut All photos by Steven C. Chamberlain Mineral Downloaded by [Eindhoven Technical University]...Part 5: The Prehnite Occurrence on the Russell-Hermon Road Figure 1 (left). The prehnite occurrence on...Russell-Hermon Road. Figure 2 (above). Map showing the location of the prehnite road cut. STeVeN C. CHAMBeRlAIN...of the mineralization with pink adularia, green prehnite, and gray quartz; 7.5 cm. Kenneth Hollmann collection...Museum specimen 21436. T his fifth article in our road-cut series documents an unusual locality that is atypical |  | | Journal (article/letter/editorial) | | SUMMIT Q U A R R Y and the adjacent Interstate-78 road cut, located in Springfield Township, Union County..."the little green hill" exposed briefly in the road cut in 1973, this unit produced more than 90 percent...map of the Summit quarry and the Interstate-78 road cut. " L G H " on sketch map = Little Green Hill....periods, including (1) saline, (2) quartz, (3) prehnite, (4) zeolite, and (5) calcite. These periods are...followed by apophyllite. In the upper part of zone 4, prehnite becomes very abundant relative to datolite, and |  | | Journal (article/letter/editorial) | | sedimentary rocks; (2) mineralization in fractures that cut across preexisting rocks; and (3) minerals in crystalline...occurrence (e.g., the zinc deposits of the Balmat district). The type of occurrence is indicated at the end...Millerton, Maltby mine: goethite; F. Millerton, road cut on State Rte. 22: tennantite, smithsonite, sphalerite...quartz (flint); S. Hamilton County Long Lake, road cut on State Rte. 30 (44°02'42"N, 74°31'16"W): fluorite...uvite-dravite, scapolite, fluorapatite; C. Newcomb, road cut on State Rte. 28N: uvite-dravite, diopside, edenite |  | | Journal (issue) | | from left: Fluorite, 6.7 cm, from the Weisseck, Austria. Collected by Reinhold Bacher; Reinhold Bacher...and Wilson, 2012) Fluorapatite rosette, with prehnite, 14 cm, from the Centreville quarry, Fairfax,...revealed that this mineralized area contained prehnite balls (exceeding 1 inch in diameter) blackened...the top of this doorway, about 1 foot in, lay a prehnite tube which was nearly horizontal, extending about...crystals) were scattered over the inside of the prehnite tube—it was quite a sight to behold! The small |  | | Journal (article/letter/editorial) | | 13 October 2017 SUMMARY STEVEN C. CHAMBERLAIN Road-Cut Mineral Occurrences of St. Lawrence County, New...by Edley Brown in 2002 from the fluor-dravite road cut. Michael Walter specimen and photo. 556 ROCKS...collected by Edley Brown from the Kents Corners road cut. Steven C. Chamberlain specimen and photo (syncroscopy...collected by Edley Brown from the Kents Corners road cut. Steven C. Chamberlain specimen and photo (syncroscopy...sites; therefore, one might expect that each time a road cut is excavated, interesting min- eral specimens |  | | Journal (article/letter/editorial) | | Specimens could be taken from a 1960s railroad cut and also from mater ial blasted to prepare footings...hexagonal crystals of pyromorphite on quartz, road cut on Route 25 in Trumbull; field of view 4 mm. ment...the occasional appearance of micromaterial i n new road cuts, etc. A number of specimens from such localities...has been found in probably dozens o f Connecticut road cuts. A good example is the very dark blue, almost...blue, sharply tapered, 1mm crystal of anatase, road cut in Watertown. anatase and brookite. O f these |  | | Journal (article/letter/editorial) | | MINERALS OF THE ELLIS STREET EXTENSION ROAD CUT Downloaded by [Athabasca University] at 07:00 13 June...Street Extension was constructed in 1973–75, its road cut produced numerous well-crystallized specimens...quartz, datolite, and barite, among others. The road cut exposed basalts with mineralized gas cavities...University] at 07:00 13 June 2016 LOCATION The road cut is south of the intersection of Ellis Street and...Survey 7.5-minute geologic map GQ-494 (1966). The cut is easily reached via Route 72 from the south or |  | Benkó, Zsolt, Mogessie, Aberra, Molnár, Ferenc, Krenn, Kurt, Poulson, Simon R., Hauck, Steven, Severson, Mark, Arehart, Greg B. (2015) Hydrothermal alteration and Cu–Ni–PGE mobilization in the charnockitic rocks of the footwall of the South Kawishiwi intrusion, Duluth Complex, USA. Ore Geology Reviews, 67. 170-188 doi:10.1016/j.oregeorev.2014.11.010 | Journal (article/letter/editorial) | | University of Graz, Universitätsplatz 2, 8010 Graz, Austria Geological Survey of Finland, Betonimiehenkuja...by an actinolite + chlorite + cummingtonite + prehnite + pumpellyite + quartz + calcite hydrothermal...by an actinolite + cummingtonite + chlorite + prehnite + pumpellyite + calcite (I–II) + quartz mineral...University of Graz, Universitätsplatz 2, 8010 Graz, Austria. Tel.: +43 36 20 595 9363 (mobile). E-mail addresses:...Cu-mineralization associated with actinolite–chlorite–prehnite–pumpelleyite–calcite alteration assemblage in |  | | Report (issue) | | ......... 3 USGS Reesers Summit No. 2 - Hemlock road site ...... 4 Magnetic susceptibility investigations...sheet, the York Haven locality, the Reesers Summit road cut exposures of ferrogabbro, and the location of...1/2-minute quadrangle (fig. Al). The cores were cut at two sites on either side of Interstate Route 83...border fault, whereas the other margins of the sheet cut across the bedding of the Triassic strata at steep...REESERS SUMMIT 1-83 NORTHEAST ROADCUT EXPOSURE The road cut exposes approximately the upper-half of the 2050 |  | | Report (issue) | | . . . . . . . . . . . . . . . The Bay d'Espoir Road . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . Picrolite , Baie Verte Road . . . . . . . . . . . . . . . . . . . . . . . ....celestite, quartz crystals, beryl, scheelite, prehnite and manganese mineral s . For the gem-cutter or...quartz en cristaux, le beryl, la scheelite, la prehnite et les mineraux manganesiens. Pour le lapidaire...and are designed for use with official provincial road maps. Locality maps are included for deposits that |  | | Book | | Oronto Group a.. 3: co w C: _J 0 0 Marquette Iron District, Baraga and Marquette Counties diabase dikes...Dickinson and Iron Counties, with a small outlying district near Florence, Wisconsin (Figure 8). The discovery...fissure lodes of the Lake Superior native copper district in the Keweenaw, hydrothermal vein-type deposits...the world-renowned Lake Superior native copper district that stretches from Ontonagon County northward...as a basis for stratigraphic correlation in the district. Beds of the senes dip northward at moderate angles |  | | Report (issue) | | of Lucia on Hwy. 1--where the Ferguson-Nacimiento Road starts), and at Arroyo Seco campground; all in the...OUTCROPS Directions to locality @: Take the Rio Road turnoff from California Highway 1. After 0.6 mi...goes through a road cut in granitic rock on Soberanes Point. Just south of the road cut is a small pull...pull -off spot on the west side of the road. From here a trail leads down to the shoreline at the south...the west side of the road for Garrapata Beach, less than 5 minutes west of the road. This is a very nice |  | | Journal (issue) | | PUBLISHED MONTHLY 1938 CONTENTS FOR MAY, 1938 PREHNITE • • • • • • • • • • • • • • • ...131 PREHNITE One of the loveliest of green minerals which always excites admiration is prehnite. It must...green, as prehnite is also found in a gray, white, yellowish and even a bluish color. Prehnite is an old...found it at Cape of Good Hope in South Africa. Prehnite is now a common mineral at many localities. Very...asbestos. In the United States an early locality for prehnite was near Farmington, about 10 miles west of Hartford |  | | Journal (article/letter/editorial) | | see a thin seam about 1" thick running through a road cut and then a couple of feet of red clay then another...and hematite are to be found on most any county road south of Montgomery (Montgomery Co.), Ala., off...the long wave. The material is found in a large road cut on Grizzly Peak Blvd. directly under the Grizzly...months ago about the hollow quartz from this same road cut, however I never saw anything about it or any...other decaying matter. The mine itself is just a cut in the rock, but the vein runs alono the brook for |
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