 | | Journal (article/letter/editorial) | | Albian (Uppermost Lower Cretaceous) Sands of Miechów Synclinorium, Southern Poland Jakub Kotowski * ...of Warsaw, Żwirki i Wigury 93, 02-089 Warszawa, Poland; knejbert@uw.edu.pl (K.N.); dolszews@uw.edu.pl...to 0.9 apfu). Detrital tourmalines are mainly dravite with a prevalent schorl end-member with average...provenance; Bohemian Massif; Miechów Synclinorium; Poland 1. Introduction In the history of the Earth, the...Szczecin–Miechów Synclinorium [3], is located in southern Poland (Figure 1). That area, during the Middle and Late |  | Owen, J. Victor, Hanley, Jacob J., Kerr, Mitchell J., Stimson, Matthew, Boucher, Brandon (2019) Geochemistry of pink corundum-bearing feldspathic gneiss, Frenchvale quarry, Cape Breton Island, Canada: metamorphism of albitised, Fe-poor clastic rocks. Mineralogical Magazine, 83 (2) 249-260 doi:10.1180/mgm.2018.165 | Journal (article/letter/editorial) | | corundum-bearing feldspathic gneiss, Frenchvale Quarry, Cape Breton Island: metamorphism of albitized...2018.165. Abstract Frenchvale Quarry, once mined for dolomitic marble, contains pink corundum-bearing...associated with carbonate platformal rocks (now marble), corundum is confined to the feldspathic rocks...cutting dolomitic marble (Pêcher et al., 2002), but elsewhere, ruby occurs in calcitebearing marble associated...feldspathic gneiss associated with dolomitic marble is exposed in a 0.6 km long quarry near Frenchvale, Cape Breton |  | | Journal (article/letter/editorial) | | distribution of Cr at grain scale. Tourmaline is Na-rich dravite, with average Mg/(Mg+Fe) ratios of 0.83 and 0.63...and Cr contents of 0.32 and 0.18 a.p.f.u., in dolomitic and ankeritic marbles, respectively. Tourmaline...concentrations of Zn (av. 0.01 a.p.f.u.) and in ankeritic marble it also contains Ni (av. 0.04 a.p.f.u.). Zn-rich...138, 0.115 and 0.267 a.p.f.u., respectively, in dolomitic marbles, and 0.103, 0.078, 0.065 and 0.185 a.p...solid solutions between endmembers uvite, schorl, dravite and elbaite) in the subsystem Ca-Fe-Mg-Li, in which |  | | Report (volume) | | Rocks in the Grenville Complex of St. Lawrence County, New York U.S. GEOLOGICAL SURVEY BULLETIN 1626-C...Rocks in the Grenville Complex of St. Lawrence County, New York By C. ERVIN BROWN and ROBERT A. AYUSO...cited C31 FIGURES 1. Index map of St. Lawrence County, N.Y. C2 2. Generalized geologic map showing sample...Rocks in the Grenville Complex of St. Lawrence County, New York By C. Ervin Brown and Robert A. Ayuso...age north of Gouverneur, N.Y., contain abundant dravite-uvite (magnesian tourmaline). These rocks, more |  | | Catalog/List | | slightly glassy granular mass. Crestmore_Riverside County California USA 5x4 £15 7 ASTROPHYLLITE five golden...of minute Astrophyllite. St Peters Dome. El Paso county Colorado USA 5x4.5 £15 9 SERANDITE small pink-orange...nodule, polished on one side 3.5 x3cm Keweenaw County Michigan USA £25 17 METASTIBNITE thin red coating...hydrocarbon USA 3.5 x3.5 £8 Fort Duchesne Uintah County Utah 20 MALACHITE a polished all over piece ,...intergrown crystal sections about 8x3cm Mono Lake, Mono County, California USA £8 -~ -·.- 66 BRUCITE pure yellow |  | | Catalog/List | | metallic pebble polished on one side 3.5 x3cm Keweenaw County Michigan USA £25 - 4 TALC pure pink massive about...BalmatEdwards Zinc mining district, St Lawrence County ,New York, USA £7 14 EPIDIDYMITE pure white-grey...matrix .Overall size about 1.3cm x 8mm Merehead quarry, Mendips £8 3 43 PURPURITE solid mauve mass...intergrown crystal sections about 8x3cm Mono Lake, Mono County, California USA £12 -"' .__... .. , . • i4:~-...fibrous in 3cm x 2cm Mangruvan, Lindesberg, Orebro County Sweden £8 B) 1.5cm £4 69 PARACELSIAN white cleavages |  | | Journal (article/letter/editorial) | | Lawrence County. Students of mineralogy recognize the international reputation of St. Lawrence County for...any edition, re veals frequent mention of the County as a place where certain minerals are found. Most...The mineral collecting sites of St. Law rence County are of three general types: 1 ) those of metamorphic...and physiographic provinces of northern New York (lower map). Upper map shows the relationship between the...diopside (Ca Mg ( S i 0 ) ) often occurs in dolomitic marble (Ca Mg ( C 0 ) ) along contacts with silicate |  | | Catalog/List | | magnetite with minor black Ludwigite fibres. Old marble quarry Kilchist Skye 4x4 £7 29 GOETHITE quite rich...large and smaller radiations on slate High Down Quarry Devon 5x2.5 £10 4 53 TILASITE rich pinkish massive...of minute Astrophyllite. St Peters Dome. El Paso county Colorado USA 5x4.5 £15 j i 60 SERANDITE small...on the top surface 4x3cm Succor Creek, Malheur County Oregon USA £12 74 ARAGONITE Crystallised nodule...intergrown crystal sections about 8x3cm Mono Lake, Mono County, California USA £8 81 BRUCITE pure yellow to colourless |  | | Report (issue) | | DEPARTMENT OF MINES BUILDING STONES OF ONTARIO PART III MARBLE By D. F. HEWITT INDUSTRIAL MINERAL REPORT NO...parts: Part T II III IV V Introduction Limestone Marble Sandstone Granite Industrial Mineral Report No...acceptable. BUILDING STONES OF ONTARIO PART III: MARBLE TABLE OF CONTENTS Page Introduction ................... Ontario Marble Deposits ................................ Haliburton County ..................... Peterborough County .............................*. 16 l? 18 19 Hastings County ............... |  | | Catalog/List | | mass of small crystals with magnification) Malad Quarry. Malad, Mumbai district Maharashtra India 7x4 £30...fibrous in 3cm x 2cm Mangruvan, Lindesberg, Orebro County Sweden £8 B) 1.5cm £4 32 MANGAN DIASPORE , dark...Verbano-Cusio Ossola Piedmont Italy 5x7cm £15 Finero Quarry, 39 SEPTARIANNODULE both halves cut and polished...with a crystalline surface. Falun Mine, Dalama County Sweden 1.5cm £10 the type location . 4 7 DMISTEINBERGITE... Domeykite (Cu As) and Native Copper, Keweenaw County Michigan USA 3.5x3 £20 53 EPIDOTE Sr obvious pinkish |  | | Journal (article/letter/editorial) | | associated with sulphide and oxide mineralizations. The dravite components in these tourmalines are proportional...Lottermoser and Plimer 1987; Gallagher and Kennan 1992). Dravite-rich tourmaline compositions are typically associated...sulphides (Slack 1982), whereas both schorl-rich and dravite-rich compositions are reported from the Broken...chert intercalations are d o m i n a n t in the lower parts of these basins, whereas metatuffites and...parts. Sub-economic metal enrichments occur in the marble-chert sequences and range from ironmanganese oxide |  | Belley, P. M., Grice, J. D., Fayek, M., Kowalski, P. M., Grew, E. S. (2014) A NEW OCCURRENCE OF THE BOROSILICATE SERENDIBITE IN TOURMALINE-BEARING CALC-SILICATE ROCKS, PORTAGE-DU-FORT MARBLE, GRENVILLE PROVINCE, QUEBEC: EVOLUTION OF BORON ISOTOPE AND TOURMALINE COMPOSITIONS IN A METAMORPHIC CONTEXT. The Canadian Mineralogist, 52 (4) 595-616 doi:10.3749/canmin.1400034 | Journal (article/letter/editorial) | | TOURMALINEBEARING CALC-SILICATE ROCKS, PORTAGE-DU-FORT MARBLE, GRENVILLE PROVINCE, QUÉBEC: EVOLUTION OF BORON...metamorphic serendibite (δ11B = +4.3 ± 1.7‰) is lower than that of prograde tourmaline (δ11B = +10.6 ±...source. Keywords: serendibite, tourmaline, uvite, dravite, calc-silicate rock, boron isotopes, metamorphism...discovered in the Portage-du-Fort area, Pontiac Regional County Municipality, Québec by mineral collector Mike...hosted in marble, or in metasomatite between a silica-undersaturated rock (commonly marble) and a more |  | | Report (volume) | | ~ ' ( t.' New Talc Deposit in St. Lawrence County New York By C. ERVIN BROWN CONTRIBUTIONS TO ECONOMIC...uartzose calcitic marble -------------------------------Silicated dolomitic marble -----------------...quartzite ------------------Interlayered silicated marble and quartzite ----------------Igneous rocks --...vvestern part of De Kalb Tovvnship, St. Lavvrence County, N.Y _____ In pocket FIGURE 1. Index map of Nevv...Nevv York State shovving St. Lavvrence County and the area of this report ___________________ D3 2. Diagrammatic |  | | Journal (article/letter/editorial) | | stages belongs to the alkali group and ranges from dravite to schorl in composition. In-situ B-isotope analyses...regionally metamorphosed SC R to greenschist or lower amphibolite facies with a peak temperature of ~500...albitized quartz porphyries, occur locally within the lower part of the Dahongshan Group (Fig. 2). Precise isotopic...between meta-tuffaceous rocks (mica schist) and dolomitic marble (Figs. 3C-D), consist of magnetite, chalcopyrite...not corrected for pressure and are expected to be lower than the trapping temperatures. The temperatures |  | | Journal (article/letter/editorial) | | composition, dominated by amphibole-bearing dolomitic marble and albite-rich quartzo-feldspathic rocks...development of scapolite-bearing assemblages in dolomite marble, occurrence of tourmaline-rich mineralized rocks...assemblage (the latter being represented by dolomitic marble and crystalline limestone) and a dominant...(post-Aravalli) thermal perturbations. The older, dolomitic marble unit occurring at Jhamarkotra (20 km SE of...hosts stromatolitic rock phosphate. The younger, dolomitic succession is represented by Zawar Mines sequence |  | | Journal (article/letter/editorial) | | amblygonite-montebrasite. Its lithium content is comparably lower. Consequently, its role as a lithium carrier has...rocks such as gneiss, serpentinite, dolomitic and calcitic marble, Fe-rich skarn, and pyroxene gneiss...chemical composition of tourmaline and garnet. Dravite, cordierite, diopside, tremolite, magnetite and...some pegmatites penetrating serpentinite, calcitic marble and Fe-rich skarn. Reaction rims composed of anthophyllite...pegmatite along the contacts with calcitic and dolomitic marble (Bli~nfi). The elbaite pegmatites commonly |  | Hazarika, Pranjit, Bhuyan, Niraj, Upadhyay, Dewashish, Abhinay, Kumar, Singh, N.N. (2019) The nature and sources of ore-forming fluids in the Bhukia gold deposit, Western India: constraints from chemical and boron isotopic composition of tourmaline. Lithos, 350. 105227 doi:10.1016/j.lithos.2019.105227 | Journal (article/letter/editorial) | | facies carbonate-pelitic units represented by dolomitic marble, crystalline 86 limestone, calc-silicate...(Deol et al., 2012; 87 Golani et al., 2002). The lower unit of the Aravalli succession just above the BGC-I...mineralization is structurally controlled and hosted in dolomitic marble, quartz-albite and 108 calc-silicate rocks...albitized calc-silicate rocks 120 within dolomitic marble, (2) pyrrhotite ± arsenopyrite ± pyrite bands...associated with gold mineralization include dolomitic marble, 128 calc-silicate rocks and quartz-albite |  | Ertl, Andreas, Topa, Dan, Giester, Gerald, Rossman, George R., Tillmanns, Ekkehart, Konzett, Jürgen (2019) Sr-bearing high-pressure tourmaline from the Kreuzeck Mountains, Eastern Alps, Austria. European Journal of Mineralogy, 31 (4) 791-798 doi:10.1127/ejm/2019/0031-2863 | Journal (article/letter/editorial) | | oxidizing conditions. It has a significant oxy-dravite component. A near-rim zone contains 0.6 wt% Cr2O3...influenced by a Sr-bearing marble. Key-words: high-pressure tourmaline; oxy-dravite; Kreuzeck Mountains; Eastern...states, the intensity of the Fe2+ bands in the dravite was compared to the intensity of the Fe2+ bands...electron microprobe. Because the SiO2 content was even lower than in zone 1, we assumed 0.10 apfu [4]B to occur...problematic, but it seems that it belongs to the dravite – oxy-dravite – buergerite series. 5. Discussion and |  | | Journal (article/letter/editorial) | | this trend Fe3þ along a join between ‘‘oxy-dravite’’ [Na(Mg2Al)(Al6)(Si6O18)(BO3)3(OH)3(O)] and povondraite...more magnesian and fall close to the dravite and ‘‘oxy-dravite’’ compositions. These latter tourmaline...X Y3 Z6 T6O18 (BO3)3 V3 W Schorl Dravite ‘‘Oxy-dravite’’* Povondraite Uvite Na Na Na Na Ca Fe2þ...formula for ‘‘oxy-dravite’’ (Hawthorne & Henry, 1999). The parenthetical term ‘‘oxy-dravite’’ denotes the...Fe3+O(Fe2+(OH))1 CaMg(NaAl)1 TiO2(R(OH)2)1 rocks. Schorl, dravite, and uvite are relatively common species that occur |  | Yu, Miao, Feng, Cheng Y., Mao, Jing W., Zhao, Yi M., Li, Da X., Zhu, Yong F. (2017) Multistage Skarn-Related Tourmaline From the Galinge Deposit, Qiman Tagh, Western China: A Fluid Evolution Perspective. The Canadian Mineralogist, 55 (1) 3-19 doi:10.3749/canmin.1600043 | Journal (article/letter/editorial) | | tourmaline composition in both rock types is within the dravite–uvite solid solution. Some TourI crystals show...uvite cores (Gen-1) are overgrown by second-stage dravite rims (Gen-2). Some Tour-I crystals also show overgrowth...extension environment. Partial melting of the thickened lower crust might have contributed to their formation...which is composed of limestone, argillaceous dolomitic limestone, dolomite, chert, sandstone, and basaltic...intrusive contact between the granodiorite and the dolomitic marble, and the IV, V, and VI Ore Domains are distributed |  | | Journal (article/letter/editorial) | | calcsilicate progenitor was probably a impure dolomitic carbonate sediment. Amphibolite-hosted scheelite...stratiform scheelite deposits comprise zoned schorl-dravite and are no different from other tourmalines associated...herein are throughout regionally metamorphosed Lower-Middle Proterozoic calc-silicate horizons which...grained bedded stratiform scheelite is present in marble, regional calc-silicate rocks intimately associated... Tourmalinites comprise recrystallized dravite and/or dravite coplanar with $1 indicating formation befor |  | | Journal (article/letter/editorial) | | (Taughannock Creek) and harzburgitic (Portland Point quarry) affinities. The yellow garnet is grossular. Phlogopite...Roscherite 0 Palerrno, NH V Dunton Quarry, ME Black Mountain, ME Estes Quarry, ME v Martin Prospect, ME 1...in many of the samples. Specimens from the Estes quarry, West Baldwin, Maine, exhibit a considerable range...along a trend within the Morefield mine in Amelia County, Virginia. Brightwell (1999, 2001) analyzed amazonite...calcite, and quartz. DlOPSlDE FROM THE ATWATER QUARRY AREA, WESTFIELD, MASSACHUSETTS.W Shelton', G. W |  | Giuliani, Gaston, Dubessy, Jean, Ohnenstetter, Daniel, Banks, David, Branquet, Yannick, Feneyrol, Julien, Fallick, Anthony E., Martelat, Jean-Emmanuel (2018) The role of evaporites in the formation of gems during metamorphism of carbonate platforms: a review. Mineralium Deposita, 53 (1) 1-20 doi:10.1007/s00126-017-0738-4 | Journal (article/letter/editorial) | | closed system with a low fluid mobility (ruby in marble) in the conditions of the amphibolite to granulite...SO42−, NO3−, BO3− and F− are powerful fluxes which lower the temperature of chloride- and fluoride-rich ionic...Tanzania, Kenya and Madagascar, and lapis-lazuli in marble and/or calc-silicate rocks from Afghanistan (Fig...(Fig. 2a). Emerald mineralisation is hosted in the Lower Cretaceous sedimentary series characterised by a...crystal associated with flakes of phlogopite in a marble matrix, Minh Tien mine, Luc Yen mining district |  | | Journal (article/letter/editorial) | | originated from the same stratigraphic level (Upper Marble unit 6) reveal variation between ore bodies, as...were fluxed by H2S localized primarily in Upper Marble unit 7 (fetid dolomite). Lighter isotopes of Zn...and sulfosalt-rich immiscible melts persisting to lower temperatures. This result is consistent with the...Balmat district is paralleled to the west in the Lower Marble by a belt of pyrite, some of which was mined...and Skinner, 2003), as does thickening of the Lower Marble from the Carthage-Colton line northwesterly |  | | Journal (article/letter/editorial) | | schorl, 20 cm, Minas Gerais, Brazil, and right: dravite, 12 cm, Yinnietharra, Western Australia; (b) foitite...Ledge dike, Little Three mine, Ramona, San Diego County, California. Varieties of elbaite: (c) rubellite...Tourmaline Queen mine (1972), Pala district, San Diego County, California, Jesse Fisher and Joan Kureczka specimen...California, San Diego] at 03:56 02 March 2016 Dravite Schorl Foitite Olenite Elbaite Fluor-liddicoatite...possess euhedral habits. The famous occurrence of dravite (see table) at Yinnietharra, Western Australia |
|
