 | | Journal (article/letter/editorial) | | the Ce- and AsO4-dominant member of the mixite group. Name: Reflects the relationship to the other members... about 250 km east of Verkhoyansk, Republic of Sakha–Yakutia, Russian Federation. The exact locality...presumably similar to other members of the hulsite group. Optical data: Biaxial (+), ' 1.78, 1.782 (calc...to other species: It is a member of the hulsite group. Name: Reflects the composition and relationship...of the hulsite group, in kotoite marble from east of Verkhoyansk, Sakha–Yakutia, Russia. European Journal |  | | Book (edition) | | to the chemical formula, allegiance to a mineral group, symmetry and crystal structure as well as the strongest...chemical formula, structure (crystal system, space group, and unit cell dimensions), and at least some other...site occupancy. The Sb members of the tennantite group (2.G) will serve as a good example: tetrahedrite...registered in this book (e.g. in the amphibole group). For more detailed information see "Dana's System...vilayet (Turkey), region (Chile), kray and oblast (Russia). The country names are always included in text |  | | Book | | Miguel Hortiguela, LPPO Illustrations: Crowle Art Group Printed in China The publisher gratefully acknowledges...ofjust a few minerals; quartz and the feldspar group are the most abundant processes — called biominerals...these. The other numbers and letters in the space-group formula refer to other rotations and translations...means “primitive” in a space group). Pyrite crystallizes in the space group P43, and its crystal form is...atom in the “body” of this cube. An Jin the space-group formula means that it is body-centered. An example |  | | Book (edition) | | (Canada), Henry L. Barwood (USA). Dmitriy Belakovskiy (Russia). Fabio Bellatreccia (ltaly). Vlado Bennanec (Croatia)...(Canada), Anthony R. Kampf (USA). Pave! M. Kartashov (Russia). Sven Karnp-Moller (Denmark). Akira Kato (Japan)...Parodi (France). Marco Pa ero (ltaly). Igor Pekov (Russia), atale Perchiazzi (Italy). Ole V. Petersen (Denmark)...Minerals that are listed as belonging to the same group are similarly closely comparable in composition...Mountains,southcmUral Mountains,Russia,DANS 142, 181-184(sir.) Aescl1yni1e group 0 Aeschynite-(Nd),(Nd,Ce |  | | Book | | (Pekov, 2000). ASIA PAKISTAN FORMER SOVIBT UNION RUSSIA Dodo deposit near Saranpaul, Subpolar Urals, Tyumen...columnar crystals of hedenbergite. Around 1960. a group of collectors visited the mine. then temporarily...pale pink to transparent-colorlesscrystab of apophyllite reaching 5 cm emerged in spring 2001 from the...Martin mjne, and sparingly associated with the apophyllite crystaJs are sharp, lustrous, wedge-terminated... Orlandi and Vezzoni, 2013 ). A beautiful 8-cm group of ilvaite crystals spotted with tiny crystal!> |  | | Book | | . . . . . . . . . . . . . . . . . . . Calcite Group, 3̄2/m . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . Aragonite Group, 2/m2/m2/m. . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . Dolomite Group. . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . Azurite-Malachite Group. . . . . . . . . . . . . . . . . . . . . . . . ...different directions (. Fig. 1.3). . Fig. 1.1 Group of quartz crystals, Arkansas, USA, approximately |  | | Book | | the individuals who made crystallographic space-group, and references to the the discoveries, and scientists...classifications were less than successful, and as a distinct group of minerals and proposed the basic often confusing...to name the new mineral in honor of a person or group, to identify the locality where the mineral was...descriptions are also in bold face. Some commonly used group names and series names are given in plain face....orthoclase, but amethystine for amethyst. Neither group. If ambiguities or options exist for the charac- |  | | Book (edition) | | Chrysoberyl Spinel Topaz Tourmaline The Garnets Feldspar Group Zircon Peridot 69 92 117 150 167 171 175 185 195...book would be more sensibly shared out among a group of authors/gemmologists, each member tackling his...Edition being extracted from ‘Gems of the Silica Group’ to form a separate chapter. I have also reintroduced...citrine and amethyst, which are now produced in Russia and Japan on a commercial scale. Alteration in...some reason, the stones are better placed in a group forming a small subchapter. In the technical section |
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