| | Journal (article/letter/editorial) | relatively high-temperature glaucophane + kyanite and jadeite + kyanite bearing parageneses, that are relatively...and secondly to constrain the P–T conditions of formation of rocks by the reactions limiting the stability...sodic phases, like paragonite, glaucophane or jadeite. However, the mutual inconsistency of these grids...andalusite, sillimanite, OH-topaz, albite, paragonite, jadeite, chlorite, chloritoid, carpholite, talc, staurolite...AFM-triangle forms the base of the tetrahedron, albite or jadeite are in the apex. (a–d) Four different stages in | | | Journal (article/letter/editorial) | com/loi/tigr20 Comparative characteristics of jadeite and associated rocks from Polar Ural and Prebalkhash...Ponomareva (1968) Comparative characteristics of jadeite and associated rocks from Polar Ural and Prebalkhash...2016, At: 15:50 Comparative characteristics of jadeite and associated rocks from Polar Ural and Prebalkhash...presenting the general characteristics of the jadeite pyroxene group (Dobretsov, Pononareva, in the press)...MINERALOGY OF THE JADEITE OCCURRENCES OF THE POLAR URALS AND PREBALKHASH Jadeite and aegirine pyroxenes | | | Journal (article/letter/editorial) | Jadeite Deposits of the Clear Creek Area, New Idria District, San Benito County, California1 U.S. Geological...INTRODUCTION studies and reports on new occurrences of jadeite within the past ten years have brought...purpose of this paper to describe, in detail, the jadeite occurrence within the New Idria serpentine mass...recent experimental evidence, to suggest a genesis. Jadeite was first recorded in this area by Mielenz (1939)...quartz-albite-jadeite schist from localized metamorphic zones of the Franciscan formation of Jurassic and | | Harlow, George E., Summerhayes, Glenn R., Davies, Hugh L., Matisoo-Smith, Lisa (2012) jade gouge from Emirau Island, Papua New Guinea (Early Lapita context, 3300 BP): a unique jadeitite. European Journal of Mineralogy, 24 (2) 391-399 doi:10.1127/0935-1221/2012/0024-2175 | Journal (article/letter/editorial) | has been determined to consist of jadeitite – jadeite jade. It is very unusual with respect to both pyroxene...Pyroxene compositions lie essentially along the jadeite– aegirine join: Jd94Ae6 to Jd63Ae36, and without...felted intergrowth of tremolite-actinolite, and jadeite jade or jadeitite, a rock that consists primarily...information. A good example is a growing recognition of jadeite jade objects in the eastern Caribbean (e.g., Harlow... 1993, 2006), there are no tools described as jadeite jade anywhere in the archaeological record of New | | | Journal (issue) | 1355-4565 Review of recent studies on black jadeite jade C M . Ou Yang1 and Li Hansheng 2 1. Hong Kong...Geology, CAGS, Beijing, RR. China ABSTRACT: Black jadeite jade, appearing on the Hong Kong market as bangles...bangles, beads and pendants, consists mainly of jadeite with small amounts of omphacitic pyroxene and accessory...known as black-skin-chicken jadeite. Keywords: black-skin-chicken jadeite, electron microprobe analysis...pyroxenes in the series jadeite-aegirine-diopside-kosmochlor. Burmese jadeite consists mainly of the sodium | | | Book | Surface Water: 19 The Opals of Australia PART II Gemstones of Igneous-Hydrothermal Origin 3. Hydrothermal...Formed by High-Pressure Regional Metamorphism: The Jadeite Deposits of Tawmaw, Burma 101 83 viii Contents...or the geological/petrographical cause of the formation and growth conditions of gemstones. * O. Stutzer...most important geological events leading to the formation of the different types of deposits which engendered...learns that the study of gem deposits and their formation is a fascinating science. In addition to the highly | | | Book | Surface Water: 19 The Opals of Australia PART II Gemstones of Igneous-Hydrothermal Origin 3. Hydrothermal...Formed by High-Pressure Regional Metamorphism: The Jadeite Deposits of Tawmaw, Burma 101 83 viii Contents...or the geological/petrographical cause of the formation and growth conditions of gemstones. * O. Stutzer...most important geological events leading to the formation of the different types of deposits which engendered...learns that the study of gem deposits and their formation is a fascinating science. In addition to the highly | | | Journal (issue) | does not take the reader long to realize that jadeite, as distinct from nephrite, is Richard Gump's first...cleaver or cutter. Certainly corroboration of Jadeite occurrences in both Turkestan and China itself is still...or the other. T h e great Bishop collection has jadeite carvings that pre-date the 18th century, i.e. the...the period when commercial quantities of jadeite entered China from Burma and lapidaries began to discard...Kong, India, Kenya, Lebanon, Malaya, New Zealand, Norway, Portugal, South Africa, Southern Rhodesia, Sweden | | | Journal (article/letter/editorial) | respectively, by the occurrence of albite instead of jadeite + quartz and by the assemblage phengite + biotite..."~VALSAVARANCHE ~" ~ ~ ~ : ~ . . _ f Bordoney ii ===============================================...quartz, albite, biotite II, fine-grained white mica (phengite), epidote, garnet II (50-200 Itm) and titanite...of albite, white mica (phengite) and minor garnet II and epidote. The magmatic biotite (biotite I) contains...small flakes of fine-grained brown biotite (biotite II) and white mica (phengite). This latter phase also | | | Journal (issue) | coloration of gemquality sapphire. 48 Japanese Jadeite: History, Characteristics, and Comparison with...sources, color, texture, and chemical composition of jadeite from Japanese deposits. 68 pg. 49 Causes of Iridescence...diamonds, cuprian liddicoatite tourmaline, Japanese jadeite, iris quartz, synthetic zincite, and a short but...characteristics of Japanese jadeite and compares this highly valued gem with jadeite from other sources. Their...examines the chemical composition and chromophores of jadeite varieties from the Itoigawa and Omi regions of | | | Report (chapter) | with Asia at approximately 50 Ma resulted in the formation of the Himalaya and Indo-Burman Ranges (Indian...cordieritegrade metamorphism, migmatization and formation of leucogranite melts during c. 24–19 Ma (620–680°C;...Albian–Aptian limestones of the Middle Takena Formation (Kapp et al. 2007a, b; Leier et al. 2007). Northern...unconformity above the folded red beds of the Takena Formation and overlying 70– 60 Ma calc-alkaline volcanic...geologists and has remained unstudied. Large tracts of land on Iyer’s (1953) map have been mapped as serpentinized | | | Journal (article/letter/editorial) | rocks and tectonic juxtaposition (Platt, 1993), (ii) different protolith compositions (Oberhänsli, 1982)...some occurrences of chlorite–epidote– albite assemblages at greenschist facies conditions. Type II is well-preserved...clinopyroxene indicated a slight increase of the jadeite-content by nearly 50% (Fig. 6b) in comparison with...omphacite and of garnet are similar to those of type II (Fig. 6b and c). Na-amphiboles seem to have a constant...for eclogite type I, grey squares for eclogite type II, and open circles for eclogite type III. c) Chemistry | | | Book (volume) | Sinkankas, John. Gemstones of North America. Vol. II / John Sinkankas. pcm. Includes bibliographical...various places, especially in regard to diamond occurrences which promise to make the North American continent...Editor vi PREFACE ince publication of Volume II of Gemstones of North America in 1976, a surprisingly...tromelndonesian 186 Figure 34. Map of nephrite jade occurrences from Alaska to California... cesses 189 Figure...in the'Lillooet areay BGs. Figure 44. Mayan jadeite breast-plate, Nebay, Guatemala crscrccstccccce | | | Journal (issue) | jade carvings • Bleached, impregnated, and dyed jadeite with unusual inclusions • Cultured pearls with...emerald find from the Chivor region, Colombia • New jadeite from Guatemala • Milarite with unusual inclusions...undetectable with others. For example, dyed green jadeite usually can be detected with a handheld spectroscope...spectroscope. However, most other colors of dyed jadeite, such as lavender, black, brown, and yellow, may not...pearls. One exception to this general rule is jadeite, where the effects of the bleaching process on | | | Book (volume) | various places, especially in regard to diamond occurrences which pro1nise to make the North American continent...Series Editor VI PREFACE ince publication of Volume II of Gernstones of North America in I 976, a surprisingly........ 186 Figure 34. Map of nephrite jade occurrences frorn Alaska to California.......................... 189 Figure 35. Map of nephrite jade occurrences in Wyoming........................................................... 205 Figure 44. Mayan jadeite breast-plate, Nebaj, Guatemala................ | | | Report (issue) | Washington DC 20507. Printed on recycled paper ii 5/01 Preface and Acknowledgments The Forum is...8, 126 p. 1980, Missouri Division of Geology and Land Survey Special Publication 7, 78 p. 1982, New Mexico... . . . . . . . . . . . . . Sealaska Corporation Land Base . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . 40 LAND MANAGEMENT ISSUES AFFECTING AGGREGATE DEVELOPMENT...Development of Management Principles for Sovereign Land . . . . . . . . . . . . . . . . . . . . . . . . | | | Book | Nature of Minerals Nomenclature Occurrence and Formation Mineral Structure Primary and Accessory Minerals...Oxides and Hydroxides Carbonates and Silicates Formation of Mineral Deposits Magmatic Concentration Hydrothermal...museum or university collection. Occurrence and Formation Minerals form in all geologic environments and...pressure. The four main categories of mineral formation are (1) igneous, or magmatic, in which minerals...classes they belong to. The majority of crystal occurrences, however, are not part of well-formed single | | | Book | 316 4.3. Brucite 317 4.4. Talc 319 4.5. Jadeite 322 4.6. Nephrite 326 4.7. Lazurite 330 4...(1) general data (genetic types, conditions of formation, geological prospecting indications); (2) indicator...deposits are characterized by various conditions of formation, and variety of composition. The industry currently...Scientific fundamentals of the laws governing the formation of deposits of non-metallic minerals, and methods...metamorphogenetic groups, based on conditions of formation. The first 2 Chapter 1 group includes the | | | Book | BURLINGAME. CA 94010 BURLINGAME PUBLIC LIBRARY 1 I II II 3 9042 0 506061 For Reference Not to be taken...nelsonite (Nelson County, Virginia), nevadite, norite (Norway), pacificite, tinguaite (Tingua Mountains, Brazil)...15%). Generally these terms relate to a mode of formation or to a property of the rock. For example, mylonite...derived from the appearance or from a mode of formation of the rock. Some examples include concretion...octahedrite. Names derived from the geologic formation in which the rock was initially found are: bentonite | | | Book | permission of Birkbeck College, University of London) Io II 12 Predynastic Egyptian (Gerzean) vase of breccia...University College London) Archaic Egyptian (Dynasty I-II) dish of banded calcite known as ‘Egyptian alabaster’...OF ILLUSTRATIONS ) Archaic Egyptian (Dynasty I-II) cup of felspar porphyry. (By permission of Petrie...London) 20 Museum Pink granite statue of Rameses II, the high state official, from Memphis in Egypt...evaporation from the large ocean surfaces to cloud formation, precipitation as rain or snow and drainage of | | | Report (volume) | 28) On 362—366 a Collection of Karewas of Land and Freshwater Kashmir. By. B. Prashad, D.Sc....pointments. 1923, v%ce Mr. B. Vredenburg deceased. Mr. II. C. — 8 Records of the Geological Swrvey of India...: Class *1. importance, Class III. — (iii) (ii) Other minerals of economic Minerals of scientific...scientific interest. Geological maps and sections, (ii) Photographs, Publications. (iii) The (i) Ores...hold to prove oscillations of the reJative level of land and sea in recent geological times. At a later date | | | Report (volume) | scries of the Field. By 205 —207 OONT&NTS. ii PART 2 continued. Pages. An uiidescribcd species...the Karakoram. Scale €• PLATE 7. PLATE 8. I, II. = inches PLATE 3. U. edwini 9. 1-014 16...—Non-caking Durains. —The formation —Graph showing PLATE 10. PLATE II. tester. total oil the average...-Him alaj an Statistics, I. CoaL VOL. 1. Vou II VoU IIL VoL» Ranges between Ganges and Bavi....Burma. Ft. 2, 1014 (price 3 Rs.) s Petroleum Occurrences of Assam and Bengal. Pt'. 3, 1920 lout of print | | | Journal (issue) | Maria's daughter on her marriage with Prince William II of Orange. This jewel may be seen in a picture painted...5 y~ x~ I I \ \ \ ,, 1(\ .' I \ \. a:: II I .: ... ~ . \ \ '-l.../ 400 500 . 600 ...x . M.O'D. GÜBELIN (E. J.). Jadeite, der grüne Schatz aus Burma. (Jadeite, green treasure of Burma.) Lapis... 12 figs in colour, 1978. Describes the jadeite occurrences of Burma and illustrates mining scenes. A...topazes, the content of trace elements and the formation of colour-centres was found. The results were | | | Book (volume) | with varying initial concentrations. Direct Formation From Rivers Currents can be formed when turbid...hyperpycnal plume), mostly they are dilute. Direct formation of subaqueous gravity currents in this way is...flows, and aeolian sediment transport originating on land can enter 2 SEDIMENTARY PROCESSES/Particle-Driven...and sediment content, and hence also on their formation mechanism. Sustained input from rivers or glacial...than on-axis deposition. This incipient levee formation may lead to the development of aggradational channels |
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