 | | Journal (article/letter/editorial) | | Brno 616 00 Czech Republic krejsek.stepan@seznam.cz Apatite Figure 1. Maps of Dolní Bory, prepared by... from DOLNÍ BORY Czech Republic Figure 2. Zoned crystal of apatite, 4 × 3.5 cm, Dolní Bory–Hatě. National...for pegmatite deposits with excellent finds of quartz, schorl, feldspars, and other less common minerals...cavities. Strážek Moldanubicum is the most famous region, with hundreds of already explored pegmatites and...unexplored ones. Dolní Bory, a small village situated approximately in the center of this region, is 236 ROCKS |  | | Journal (issue) | | branch ‘pearl’ from a giant clam|Quartz beads imitating tourmalinated quartz p. 103 ARTICLES Feature Articles...Wang 148 Gem-quality Sekaninaite from the Czech Republic By Radek Hanus, Ivana Kusá and Jana Kasíková...Association, Idar-Oberstein; Jaroslav Hyršl, Prague, Czech Republic; Brian Jackson, National Museums Scotland,...sales for 2015 compared to 2014. Consumer demand rose 2%, but sales (in US$) declined 2% due to the strength...tourmaline or other gem minerals known from the Mahenge region. Hashmi saw only a few of the ‘Mahenge malaya’ |  | | Journal (article/letter/editorial) | | behavior of niobian rutile from the Písek region, Czech Republic: a model for exsolution in W- and Fe2+>>Fe3+-rich...Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic; mnovak@sci.muni.cz * Corresponding author...pegmatites at Písek and Údraž, southern Bohemia, Czech Republic. Crystals, up to 3×1 cm in size, consist of...rutile from the Písek pegmatite district in southern Bohemia, Czech Republic, where this mineral was traditionally...rutile and its exsolution product from the Písek district are significantly enriched in W, much over and |  | | Journal (article/letter/editorial) | | yellow beryl crystals, garnet, lepidolite, and rose quartz (Jones 1959, B. Wilson, pers. commun., H. Hyder...the regional geology and tectonic history of the region (e.g., Craig 1966, Vanderhaeghe et al. 1999, Johnston...mineral assemblage common to pegmatites in the area (quartz + feldspar ± tourmaline ± mica). On the other hand...mineral assemblages with medium-grained feldspars, quartz, and biotite (± amphibole, chlorite). Individual...multi-colored tourmaline (Table 4). Rose quartz is sometimes a constituent of the quartz core. Mineralogy Tourmaline |  | | Journal (article/letter/editorial) | | Mauthner, Terri Ottaway • Apatite from Dolní Bory, Czech Republic —Štepán Krejsek • Connoisseur’s Choice:...Rakovan • Star Rose Quartz —John S. White • Marriage of Science and Art: Creating Quartz Specimens in |  | | Journal (issue) | | e from Madagascar|Lalique quartz pendant in polarized light|Faceted quartz with petroleum inclusions...inclusions from Pakistan|Quartz slabs from Inner Mongolia|Sphalerite inclusions in quartz|Ruby from Liberia|Unstable...Association, Idar-Oberstein; Jaroslav Hyršl, Prague, Czech Republic; Brian Jackson, National Museums Scotland,...variable composition ranging from dacite-trachyte to quartz diorite (Elyasi et al., 1977). The apatite is thought...The apatite-bearing pockets were associated with quartz, albite and muscovite. The initial finds consisted |  | | Book | | Australia 14. G. BÁRDOSSY KARSTIC BAUXITES 1 5. A. W. ROSE and H. GUNDLACH GEOCHEMICAL EXPLORATION 1980 (Editors)...(Developments in economic geology ; 18) Translated from the Czech. Bibliography: p. Includes index. 1. Mines and mineral...literature on the subject and the work done by Czech and Slovak economic geologists since the establishment...fossil fuels) the term "non-ore" is only used in the Czech and older German and Polish literature· The Anglo-Saxon...anatexis of alkali-calcic magmatites (diorites to quartz diorites) which predominate in the lower layer |
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Dolní Bory, Bory, Žďár nad Sázavou District, Vysočina Region, Czech Republic