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University, 3450 University Street, Montreal, QC, Canada H3A 2A7 Department of Geology, Ahmadu Bello University...episodically, and can yield even more strongly alkaline products than in the first cycle, in spite of the...last 550 m.y. Felsic rocks are present in 864 alkaline and carbonatitic complexes on African soil, and...Malawi, East African Rift The Chilwa Province of alkaline igneous rocks and carbonatites in Malawi and neighboring...that appear at the end stage of the Zomba–Malosa complex are arguably the most spectacular example of the |
| | Journal (article/letter/editorial) |
The two dozen or so minerals in the group are complex, sodium-rich zirconosilicates whose crystal structure...specimens from Kangerdluarssuk, Ilimaussaq alkaline complex, South Greenland, and named the mineral eudialyte...collectors specialize in the interesting minerals of alkaline igneous rocks; collectors in North America are...are most familiar with Mont Saint-Hilaire, Québec, whereas European collectors are more familiar with sites...with the arrival of good supplies from Russia and Canada. Most cutting material contains rich pink to purple |
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O kcha mpt on De von Benallt Mine . Ll eyn ,Wa les 22 ■ BA NNI STERITE Dar k brown ve ni el ts thr oug...short wave . Novy Kosciot, east Poland £ 1 8 1 2. SPHALERITE lustrous brown crystals about 8mm to 1 cm size...small grey crystals around 4mm size with large Sphalerite crystals over an area 5x2.5 inches of chalcopyrite...Magnesiokatophorite deep blueblack . (Kipawa alkaline complex, Sheffield lake Quebec Canada) 3.5 x 1 .5 £ 1 6 46. ROMANCHEITE...green massive in matrix Gaspe Peninsula, Quebec Canada I x ½ £5 l x l £8 60. BOULANGERITE quite rich si |
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bluish-pink-fluorescing agrellite from the Kipawa alkaline complex in Québec, Canada. Brendan and Connie Dunn’s case...multicolored “Fantasy Rocks” from the Ilímaussaq alkaline complex in southwestern Greenland. His talk about...FOMS field trips. This spring’s dig turned up sphalerite, chlorophane-variety fluorite, and a little fluorescent...these minerals are underlain by massive brown sphalerite, and all three are part of a vein assemblage...olive-green, the calcite bright orange-red, and the sphalerite moderately bright orange. Similar but less bright |
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deposit, North Kazakhstan was donated by L.Bulgak. Sphalerite (112 specimens) and galena (98) are on the 3rd...that these sets present a very complete scope of sphalerite and galena varieties over the territories of...368 Kazakhstan 148 Tajikistan 135 Australia 80 Canada 72 Brazil 61 Turkmenistan 60 Ukraine 54 Italy 51...Tajikistan are series of specimens from DaraiPioz alkaline massif, collected by the Museum stuff members...by A.Godovikov in 1965 in Cresmore, Califonia. Canada. Most of the canadian new acquisitions originate |
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bonds or groups of atoms forming covalent bonds – complex anions (e.g. CO32, C2O42, SO42, PO43, SiO44...vibrations of most important coordination polyhedra and complex anionic groups are listed by Miller and Wilkins...zirconoand titanosilicates characterized by very complex and variable crystal-chemical features (Johnsen...been discovered recently in the Kovdor massive of alkaline-ultramafic rocks and carbonatites, Kola peninsula...of high-calcium eudialyte-group minerals from alkaline pegmatites of the Kovdor massif: (1) mogovidite |
| | Book |
Mineralogical Association of Canada Association mineralogique du canada 14 Also in this series Encyclopedia...(1998) J. Delvigne Mineral Species Discovered in Canada and Species Named after Canadians Special Publication...F. Martin c 2019 Mineralogical Association of Canada All rights reserved. No part of this publication...publishers. Printed in Canada on acid-free paper Library and Archives Canada Cataloguing in Publication...(1962-) Published by the Mineralogical Association of Canada ISBN: 978-0-921294-61-0 1. Mont Saint-Hilaire, |
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largely of Precambrian biotite schist (Youngduri Complex), amphibolite, limestone and quartzite (Kubongsan...of single crystals up to 15cm in length and as complex crystal aggregates (Figure 1), faceted stones were...detail. Sample 1 is from the Ngorongoro volcanic complex at Lake Manyara, in north central Tanzania. The...n 1.77 Yellowish Blue Indistinct band: 435 Complex band: 450 — 4.00 Sapphire 12 1.56 Yellowish...Indexing and Geology, University of Toronto, Toronto, Canada least-squares refinement of powder diffraction |
Kipawa alkaline complex, Les Lacs-du-Témiscamingue, Témiscamingue RCM, Abitibi-Témiscamingue, Québec, Canada