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Natrolite from
Pegmatite Peak, Bearpaw Mountains, Hill County, Montana, USA


Locality type:Peak
Classification
Species:Natrolite
Formula:Na2Al2Si3O10 · 2H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Natrolite data
Locality Data:Click here to view Pegmatite Peak, Bearpaw Mountains, Hill County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:282741
Long-form Identifier:1:3:282741:4
GUID (UUID V4):f6cec964-1fc3-4f0d-9976-a5ea412fc527
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
Montana Mineral Locality Index Downloaded by [University of Nebraska, Lincoln] at 20:00 09 April 2015...2015 K NOWN AS THE TREASURE STATE, Montana is rich in mineral and gemstone localities. The state motto...The middle third of the state is known as the Montana alkali province where the sediments have MICHAEL...Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded by [University... the Rocky Mountains, and furthest to the northwest, the belt basin. The Rocky Mountains contain sedimentary
Conference Paper/Abstract
associated alkaline rocks from Gordon Butte, Crazy Mountains (Montana) Roger H. Mitchell (Lakehead University)...Alkaline igneous rocks of central and western Montana (U.S.A.) exhibit a great petrographic diversity...Alkaline parageneses of different provenance from Montana have been shown to contain a variety of rare minerals...Mitchell 1999). Igneous lithologies of the Crazy Mountains area include a subalkaline series (gabbro-diorite-granite)...assemblages from the Gordon Butte area, northern Crazy Mountains. At Gordon Butte, four major intrusive series
Journal (article/letter/editorial)
nepheline-syenite pegmatites at Pegmatite Peak, Bearpaw Mts, Montana A. R. Chakhmouradian and R. H. Mitchell...1999 Summary The pegmatites at Pegmatite Peak (Bearpaw Mts., Montana) crystallized from an evolved fraction...[chevkinite-(Ce)]. Strontiochevkinite from Pegmatite Peak is compositionally similar to the type material...yon Pegmatite Peak, Bearpaw Mrs., Montana Die Pegmatite yon Pegmatite Peak (Bearpaw Mts., Montana) sind...Nb-reicher Mineralien aus. In den Proben von Pegmatite Peak sind drei Hauptphasen in der Entwicklung der
Journal (article/letter/editorial)
alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic...Springer-Verlag 2002 Abstract At Gordon Butte (Crazy Mountains, Montana), agpaitic nepheline±syenite pegmatites intrude...malignites and nepheline microsyenites). All pegmatite veins are composed predominantly of potassium...Alkaline igneous rocks of central and western Montana (USA) exhibit great petrographic diversity, and are...Alkaline parageneses of di€erent provenance from Montana have been shown to contain a variety of rare minerals
Journal (article/letter/editorial)
contents of Na, Nb, and Zr from a hydrothermal natrolite-rich vein cutting kalsilite– nepheline syenite...described by Černý et al. (1995) in a granite pegmatite contains considerably more total Ta plus Nb, but...titanite enriched in Na, Nb, and Zr occur in a natrolite vein cutting leucitenormative kalsilite–nepheline...up to 4 cm in length and embedded in columnar natrolite. The core of the titanite aggregates is composed...titanite cannot be distinguished by eye from the natrolite matrix as they are water-clear and colorless.
Journal (article/letter/editorial)
aenigmatite, alkaline amphiboles, astrophyllite, natrolite, and ferripyrophyllite. Three generations of ...University of Notre Dame, Notre Dame, IN 46556, USA 4 Institute of Problems of Chemical Physics, Russian...Saint-Hilaire in Canada (Wight and Chao 1995), Bearpaw Mountains and Gordon Butte in the United States (Chakhmouradian...major or minor components of hydrothermal and pegmatite associations. The first petrological and mineralogical...al. 2012). Alkaline magmatic activity reached its peak in the Devonian. The largest alkaline complexes
Journal (article/letter/editorial)
fluorapatite in a eudialyte-bearing nepheline syenite pegmatite. The overall compositional variation of these...intime avec une fluorapatite strontifère dans une pegmatite de composition de syénite néphélinique à eudialyte...ideally NaCeSr3(PO4)3F, is known from several pegmatite bodies in northwestern and southeastern Lovozero...phonolites (Table 2). Veins of nepheline syenite pegmatite containing strontium-apatite crosscut urtites...alkali feldspar, magnesio-arfvedsonite, albite, natrolite, aegirine-augite zoned to aegirine, loparite-(Ce)
Journal (article/letter/editorial)
Mont SaintHilaire (Québec, Canada), and Bearpaw Mts. (Montana, USA). The present work also provides new...(as pseudomorphs after loparite), and from a pegmatite at Mt. Kuivchorr (as discrete crystals) by Semenov...Selsurt (Chakhmouradian & Sitnikova, 1999), and a pegmatite vein intersected by the Karnasurt mine (Zadov...confined to interstices, and associated with natrolite and titanite. Compositionally, it is nearly stoichiometric...“sugary” or platy albite, green fibrous aegirine and natrolite in the mineral assemblage (Kostyleva-Labuntsova
Journal (article/letter/editorial)
incompatible and volatile elements in late-magmatic, pegmatite and postmagmatic mineral parageneses. These substitutions...apatite-group minerals at the contacts with analcime and natrolite. Sr-apatite (referred to hereafter as SrAp) crystallized... SrAp-LREE is altered at contacts with later natrolite and an unidentified Ca-Na zeolite (gonnardite?)...). Following extensive development of natrolite at the expense of aluminosilicates in lujavrite, unaltered...replacement of analcime and other aluminosilicates by natrolite, rare Sr-Na-LREE-rich varieties of apatite approaching
Journal (article/letter/editorial)
clinopyroxene (aegirine–hedenbergite), abundant natrolite, an unidentified Ca–Na zeolite(s), and minor calcite...roeblingite (Welin 1968). Banalsite is enclosed by natrolite and Na–Ca zeolite(s) and has been subjected to...ores. The mineral is associated with calcite, natrolite, tephroite, jacobsite, alleghanyite, pyrophanite...analcime, and plagioclase (An20–30). Cancrinite and natrolite are postmagmatic phases. Accessories present include...Nepheline shows incipient replacement by analcime and natrolite (Figs. 3a, b), and has the composition Ne88Ks10Qtz02
Journal (article/letter/editorial)
site of an Fe-rich chevkinite-(Ce) from Mianning County, Sichuan, China, was given 2+ 2+ by Yang et al...inter alia, of perrierite-(Ce) from the Bearpaw Mountains, Montana, U.S.A. (0.35–1.18 apfu; Chakhmouradian...may be an artifact arising from Ti uncorrected for peak interference. Figure 9. La vs.Y plot to show that...described, from a fenitised granite in the Ilmen Mountains, southern Urals, Russia, a phase that they named...cross-cutting a phlogopite-olivine rock in the Ilmen Mountains (Popov et al. 2001). It is an unusual member of
Journal (article/letter/editorial)
analysis of nepheline, feldspar, analcime and natrolite associated with these minerals. CCD single-crystal...other framework sodic aluminosilicates, albite, natrolite, and nepheline (Meier 1960, Ribbe et al. 1969...Britain), and Tony Nikischer (Excalibur Mineral Corp., USA) for providing the stronalsite and banalsite samples...nepheline-syenite pegmatites at Pegmatite Peak, Bearpaw Mts., Montana. Mineral. Petrol. 67, 85-110. Chakhmouradian...Zr-rich pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic
Journal (article/letter/editorial)
masses of pale pink color composed largely of natrolite [confirmed by XRD: a 18.255(9), b 18.60(1), c...amounts, invariably in association with natrolite. Natrolite, edingtonite (Table 8, anal. 1) and muscovite...Previously, Febearing prehnite in association with natrolite, edingtonite and other zeolites had been observed...chamosite; ‡‡ catapleiite and calcium catapleiite; † natrolite, edingtonite and an unidentified Na–Ca–Sr zeolite...Petrographic and chemical characteristics of the Panda Hill carbonatite complex, Tanzania. J. Afr. Earth Sci
Journal (article/letter/editorial)
nepheline- IP feldspar grain boundaries, and natrolite has locally replaced nepheline and / or sodalite...boundary zone of a pegmatite vein and MA MEPB37C from the core of the same pegmatite. The most abundant...designated Amph2 (Fig. 2a, b, c, d). In CE P the pegmatite, minor amounts of amphibole similar to Amph2 in...mineral) were used. Counting time was 10 to 30 s on peak (and half-time on each of the 2 background positions)...were used. Counting times varied from 13 seconds on peak and 6.5 seconds on the two background positions
Book
Buffalo, New York 14205 66 Leek Crescent Richmond Hill, Ontario L4B 1H1 Design and Layout: Joseph Gisini/PageWave...139) Page 248: Quartz (amethyst variety), Erongo Mountains, Namibia * 5 x 6 x 3 cm Page 251: Calcite, Irai...Serbia ¢ tixex7 cm LEFT: Fluorite, Taihang Shan Mountains, Hebei, China * (Sexes selem 10 | MINERALS:...considered to be minerals. Microcline, Crystal Peak, Colorado, USA * 12 x 9x 5 om MINERALS: PRODUCTS OF A...a fracture, producing such forms as aegirine pegmatite. As well, hot hydrothermal fluids often carry
 
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