 | | Journal (issue) | | Two mining areas in western Montana – Black Pine (Jensen and Nikischer, 2012; Waisman, 1992) and Hecla (Karlstrom...by electron microprobe. Minerals of the jarosite group, specifically plumbojarosite (Pb0.5Fe3(SO4)2(OH)6;...domestically produced tantalum metal. In the 1930’s, microlite was reported to occur in the pegmatite, which...visited the property in 1942 to evaluate the microlite reserves. An extensive investigation followed...the property blocking out extensive reserves of microlite rich ore. Also in 1942, Prof. Montgomery entered |  | | Journal (issue) | | Maureen G., Geology and Mineral Deposits of Pershing County, Nevada, Nevada Bureau of Mines and Geology, Bulletin...iNb 2O8 This is a new mineral of the wodginite group from the La Calandria granitic pegrnatite, Canada...exsolutions of Ta-rich rutile and intergrown with microlite-group minerals. Achalaite has a black color and streak...by analogy with wodginite, is monoclinic, space group C2/c, Z = 4. Refined unit-cell dimensions are a...Achalaite is the first member of the wodginite group with Nb dominant over Ta; it is genetically considered |  | | Journal (article/letter/editorial) | | type locality at Heftet jern in Tørdal, in the county of Telemark, Norway. New data of Scandium-minerals...from the Animikie Red Ace pegmatite in Wisconsin,USA, by Falster et al. (1996); 3) a Sc-arsenate, ScAs04...kristiansenite and rynersonite, as well as stannian microlite, and may be the very rare tantite (Raade et al...thortveitite. And minerals of the pyrochlore-microlite group contains from 1-5 wt. % Sn02, while the scandian...amazonitelepidolite pegmatite in the nearby Høydalen quarry (Oftedal 1943, Kristiansen 1998). The mineralogy |  | Kolitsch, Uwe, Kristiansen, Roy, Raade, Gunnar, Tillmanns, Ekkehart (2010) Heftetjernite, a new scandium mineral from the Heftetjern pegmatite, Tordal, Norway. European Journal of Mineralogy, 22 (2) 309-316 doi:10.1127/0935-1221/2010/0022-1987 | Journal (article/letter/editorial) | | dark greyish brown mineral of the pyrochlore-microlite group, and an unidentified, orange-brown, tabular...crystallises in the wolframite structure type, with space group P2/c and a ¼ 4.784(1), b ¼ 5.693(1), c ¼ 5.120(1)...scandian ixiolite, caesian bazzite, ‘‘scandium microlite’’ (unapproved name, see Jambor & Puziewicz, 1990)...1990) and other scandian members of the pyrochlore group. One of their scandian ixiolites has 18.80 wt% Sc2O3...dark greyish brown mineral of the pyrochlore-microlite group, beside an unidentified, orange-brown, tabular |  | | Book | | Emeralds and Beryls as 157 Beryl Structure, Space Group and Symmetry Elements, Talismans, 95 159 Emeralds...with that of mankind. John Sinkankas San Diego, California October, XIV 1981 ACKNOWLEDGMENTS As may... searches were encouraged University of California, important no and facilitated Scripps Institution...that emeralds et it is called to Tibetan same group directly belongs traceable.” 12 ‘‘were Furthermore...and for it is However, territory coincides Mountains, prehistoric turquoise,” gemstones, region |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Ontario Museum Toronto, Ontario Steven R. Morehead Riverside, CA Donald R. Peacor University of Michigan Ann...classic topaz crystals and members of the tourmaline group that he associated with his memorable trips to Brazil...beryllium phosphate mineral, found at the Nevel quarry an Newry, Maine, was given the name gainesite in...Green River (WY) $10 v.8/#6 California Issue Benitoite, Gold L.A. County Museum, Himalaya mine $10 v |  | Mills, Stuart J., Christy, Andrew G., Rumsey, Mike S., Spratt, John, Bittarello, Erica, Favreau, Georges, Ciriotti, Marco E., Berbain, Christian (2017) Hydroxyferroroméite, a new secondary weathering mineral from Oms, France. European Journal of Mineralogy, 29 (2) 307-314 doi:10.1127/ejm/2017/0029-2594 | Journal (article/letter/editorial) | | Hydroxyferroroméite crystallises in the space group Fd3m with the pyrochlore structure and hence is...is a new Fe2þ-dominant member of the roméite group of the pyrochlore supergroup. It has the unit-cell parameters:...material, by analogy with other members of the roméite group, although large octahedra, if found, might be harder:...contrasts with the situation in the elsmoreite group of the pyrochlore supergroup, where substantial...the preponderant species of preponderant valence group in each site of the structure. However, the variety |  | | Report (issue) | | western extension of the Separation Rapids pegmatite group, NW Ontario F.W. Breaks, A.G. Tindle and S.R. Smith...copper-platinum group element mineral potential of Dana and Crerar townships, River Valley area, Grenville...stratigraphy and copper-platinum group element mineralization of the River Valley intrusion, Dana Township J...hypervelocity impact studies—UNB Impact Geology Group J.G. Spray, A.J. Murphy, J.P. O’Connor, R.G. Scott...and regional humus and till sampling of the River Valley area, east of Sudbury, Ontario N. Tardif 38. Quaternary |  | | Journal (article/letter/editorial) | | . . . . . . . . . . . . . . . . . . . Platinum group elements (PGE) . . . . . . . . . . . . . . . . ...platinum-group-element deposits . . . . . . . . . . . . 6.3. Structure-related platinum-group-element...Sedimentary platinum-group-element deposits . . . . . . . . . . 6.5. Platinum-group-element supply and.... . . 45.1. Chemistry and mineralogy of garnet-group minerals . . . . . . . . 45.2. Magmatic garnet deposits... . . . . . . . . . . . . . . . . . . . Epidote-group minerals . . . . . . . . . . . . . . . . . . . | | | Journal (article/letter/editorial) | | . . . . . . . . . . . . . . . . . . . Platinum group elements (PGE) . . . . . . . . . . . . . . . . ...platinum-group-element deposits . . . . . . . . . . . . 6.3. Structure-related platinum-group-element...Sedimentary platinum-group-element deposits . . . . . . . . . . 6.5. Platinum-group-element supply and.... . . 45.1. Chemistry and mineralogy of garnet-group minerals . . . . . . . . 45.2. Magmatic garnet deposits... . . . . . . . . . . . . . . . . . . . Epidote-group minerals . . . . . . . . . . . . . . . . . . . |  | | Thesis/Dissertation | | 5 Tourmaline from the Little Three pegmatites, USA (Maner & London, 2017). 6 Seawater (Foster et al...Beurlen et al., 2011) and the Oxford County pegmatite field in Maine, USA (e.g., Simmons et al., 2005a). It...mainly rhombohedral, isostructural in the space group R3m. Although, some studies report tourmalines,...Williams et al., 2010). The structure of tourmaline-group minerals consists of six-membered rings of TO4 tetrahedra...investigated pegmatites and host rocks are alkali group tourmalines, namely schorls - Na (Fe2+3) Al6(Si6O18) |  | | Book | | are defined by chemical composition, structural group, and crystal system, with one or two references...Si04) and fayalite (Fe 2 Si0 4 ) (see Olivine Group), group names, such as mica for all the minerals with...pyrite) and also to a group of minerals having the same structure pyrite group). kind of mineralogic...sense that does not refer to a mineral species or group proper, no special designating valid mineral species...2 4 ), a mineral species assigned to the spinel group because of its spinel structure; quartz syenite |
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