 | Götze, Jens, Hofmann, Beda, Machałowski, Tomasz, Tsurkan, Mikhail V., Jesionowski, Teofil, Ehrlich, Hermann, Kleeberg, Reinhard, Ottens, Berthold (2020) Biosignatures in Subsurface Filamentous Fabrics (SFF) from the Deccan Volcanic Province, India. Minerals, 10 (6) 540 doi:10.3390/min10060540 | Journal (article/letter/editorial) | | Filamentous Fabrics (SFF) from the Deccan Volcanic Province, India Jens Götze 1, *, Beda Hofmann 2,3 ...of subsurface filamentous fabrics (SFF) from the Deccan Volcanic Province (DVP) were investigated to determine...filamentous fabrics; biosignatures; biomineralization; Deccan Volcanic Province; smectites; zeolites; silica... The Deccan Volcanic Province (DVP; isamong among Earth’s largest continental flood The Deccan Volcanic...of andand associated minerals. Often, Often, The Deccan Volcanic Province (DVP; Figure 1) is among the |  | | Journal (article/letter/editorial) | | March/April: Apophyllite and stilbite, Maharashtra, India. Heliodor specimen, Jeff Scovil photo. May/June:...R. I. Gait, 25-30 Agardite-(Y), New Mexico, 301 Agate, Colorado, 233, 252-68; Michigan, 387 Aikinite,...109; Namibia, 117 Anhedral, 350-51 Apophyllite, India, 126-29 Aquamarine, Colorado, 23 1 ; Mozambique...34849; Spectacular New Apophyllite from India’s Deccan Trap Basalts, M. F. Makki, 126-29 Colorado, Brooklyn...Illite, Ohio, 308 Index to Volume 76 (2001), 68-74 India, apophyllite, 126-29 Inesite, Kalahari manganese |  | | Book | | Institute of Technology Bombay Mumbai, Maharashtra, India ISBN 978-3-319-67704-0 ISBN 978-3-319-67705-7...the Physical Research Laboratory (PRL, Ahmedabad, India), the National Autonomous University of Mexico (UNAM)...Geoscience Award of the Ministry of Mines, Govt. of India (2010), and the M. R. Srinivasa Rao Award in Petrology...Petrology of the Geological Society of India (2017). His major research interests are flood basalt volcanism...Natural Gas Corporation (ONGC), Sundargarh, Odisha, India e-mail: ali_md2@ongc.co.in Carla Joana Santos Barreto |  | | | | images Front cover top Agate from Germany; bottom Agate from Scotland. Back cover Agate from Germany. Title...Title page Agate from Russian Arctic coast. Distribution NBN International Estover Road Devon PL6 7PY ... Contents Introduction Names of agates What is an agate? Properties of agates Sources of agates Europe...different geological environments. Since the mid-1900s, agate collecting has become very popular in Europe, North...America and the Middle East. There are thousands of agate-producing areas on Earth, and in the following pages |  | | Book | | Images Front cover top Agate from Germany: bottom Agate from Scotland. Back cover Agate from Germany. Title...Title page Agate from Russian Arctic coast. Distribution NBN International Estover Road Devon PL6 ?PY UK...Introduction 4 Names of agates 6 What is an agate? 10 Properties of agates 44 Sources of agates...geological environments. Si nce the mid-1900s, agate collecting has become very popular in Europe, North...America and the M iddle East. There are thousands of agate-producing areas on Earth, and in the following pages |  | | Journal (issue) | | E-mail: leicht@kristalle.com Minerals of the DECCAN TRAPS INDIA by Berthold Ottens 2003 Published by the...Hills quarry no. 2 near Poona, Maharashtra state, India. Steve Smale collection and photo. Title page header:...today as a national emblem for India. Archaeological Museum, Sa\rna\th, India. Frontispiece [this page]:...page]: Street scene in Lahore, India, early 1800’s. Author’s address: Berthold Ottens Klingenbrunn Bahnhof............................. 14 Early Dealing in Deccan Minerals ..................................... |  | | Book (volume) | | OF THE GEOLOGY OF INDIA. PART IV: MINERAL06Y. A MANUAL or THE GEOLOGY OF INDIA. PART IV: M IN E...R. MALLET, SUPERINTENDENT, GEOLOGICAL SURVEY OF INDIA. - - * - - **, *. * UN \ . . . . . y , -...SOLD At the OFFICE OF THE GEOLOGICAL SURVEY OF INDIA; AND BY ALL BOOKSELLERS. LONDON : TRUBNER & Co... W. Blanford, treat on the general geology of India, or the physical, strati graphical and palaeontological...knowledge we possess respecting non-useful minerals in India, considering the immense extent of the empire. One |  | | Book | | Occurrence: Rest of the world 81 Australia 81 India 84 Burma 84 Libya 84 8 Testing the quartz family...all rock types and in most countries. CHALCEDONY Agate (light to dark colours in concentric bands, translucent)...translucent), fire agate (dark agate with play of colour similar to that in opal, opaque), moss agate (pale yellow...the categories Silex or Kieselstein (including agate, flint opal), Petrosilex or Halleflinta (for jasper...with a reddish fruit. Moss agate is characterized by dendritic growths resembling moss or trees; Pliny used |  | | Journal (issue) | | 2000 program, brought about by the field trip to India and a decision to combine the January social with... There are two distinct groups, chalcedony and agate. Chalcedony is uniform in colour and derives its...from chlorite) and heliotrope (or blood stone). Moss agate is in fact a clear chalcedony containing fibrous/dendritic...basalts of the NW United States and the Deccan basalts of India. It is worth noting that the total land...lave field and the 500,000 square miles of the Deccan traps. The recognition, in .the 1950s, that zeolites |  | | Book | | Yuanming Pan Mineralogy, Geochemistry and Genesis of Agate—A Review Reprinted from: Minerals 2020, 10, 1037.... . . . . 5 Terry Moxon and Galina Palyanova Agate Genesis: A Continuing Enigma Reprinted from: Minerals...Gemological Characteristics and Origin of the Zhanguohong Agate from Beipiao, Liaoning Province, China: A Combined...source of the silica required for the growth of agate remains largely unknown. The first known descriptive...exists today. The complex, multi-step process of agate formation is not yet completely understood. The |  | | Book | | Pierson CONTENTS Preface ix Introduction xv Agate: Goodness and Grounding 1 Amber: Sun, Seas, and...sardonyx, jasper, and agate. Chalcedony itself is a special kind of quartz. Agate itself is further classified...classified into several forms (moss agate, banded agate, lace agate, and so x Preface on), each with...agates, for instances, are listed under agate, although all agate is considered a variety of chalcedony...do not even make practical clothing. (The beaded agate cape of Queen Pu’Abi, jade cups, and similar affectations |  | | Journal (article/letter/editorial) | | Review Mineralogy, Geochemistry and Genesis of Agate—A Review Jens Götze 1, *, Robert Möckel 2 and Yuanming...20 November 2020 Abstract: Agate—a spectacular form of SiO2 and a famous gemstone—is...interstitial molecular H2 O and silanol groups. Most agate occurrences worldwide are related to SiO2 -rich...rocks. It is assumed that the supply of silica for agate formation is often associated with late- or post-volcanic...studies point to a range between 20 and 230 ◦ C for agate formation temperatures. The accumulation and condensation |  | | Journal (issue) | | the Mineral Cabinet were most likely brought from India, Austria (from Habachtal), and perhaps, also from... from Peter L. Dravert's collection. 24 53. Agate (entire geode handled as human head). 8 x 6 cm....stream (Figure 52). The rich collection of opal and agate specimens includes a beautifully cut model of a...problem of agate genesis. He got interested in the chalcedony "icicles" sometimes occurred in agate geodes...measure up to 2-3 cm in diameter. 8. Fragment of agate geode with chalcedony- Some fmds were also made |  | | Book (volume) | | Iris Agate, 203 Historical, 203 Sard and Carnelian, 206 Historical, 207 Moss Agate, 208 Agate, 210 Color...nature are frequently found in rhyolites, as at Agate Point, Ontario, where quartz phenocrysts contain...with a pitch of microscopic dimensions (see ris Agate, under Chalcedony). References 1. Frondel: 2. Frondel:...fluoresce. Occasional specimens of chalcedony, agate, and opal fluoresce a yellowish green to green,...uranium deposits on the Colorado Plateau and in the moss agates from Sweetwater, Wyoming. The thin crusts |  | | Journal (issue) | | Production of Zeolite Mineral Specimens from the Deccan Basalt in India..........................................small extent in past years S.W. Africa, U.S.A., India, Eire, and others. The color of aquamarines as mined...Pashan, India. The specimen is 6 cm long. The Production of Zeolite mineral Specimens from the Deccan Basalt...Basalt in India by Rock H. Currier, Box 8252, San Marino, CA. 91108 INTRODUCTION in the formation, still...specimens from the Deccan cular. Amygdules, ranging in size from microscopic to basalt in India. Most of the |  | | Book | | largest masses of basalt seen on land is the Deccan Traps of India, today covering more than half a million...examples are from India. greenish colour KABBAL DURGA, a hill near Bangalore, India, is made of amphibole...Chalcedony SiO2 weather out of the basaltic rocks at Agate Beach on the island of Haida Gwaii in British Columbia...hematite-rich spots is called heliotrope or bloodstone. Agate is banded chalcedony formed in gas bubbles in volcanic...layers it is onyx, a name also given to creamy white agate or when the bands are black and white. Sardonyx |  | | Book (volume) | | CONTENTS VI TAGE TAGE Occurrence of Diamond 1. India .... 2. Brazil .... 3. South Africa 4. Borneo 5...486 488 488 488 489 CONTENTS Vll PAGE PAGE Agate (Onyx).511 Cat’s-eye . . . . Tiger-eye. . . 491.... . (Facing p. 152.) DIAMOND MINE AT PANNA, INDIA . PLATE II. 78 . „ 341 cut. Rosette Brabant...(Facing p. 512.) AGATE. Fig. a. „ 5. Fortification-agate : Oberstein 512, 513 Onyx-agate : Brazil. 512...octahedral crystals . 126 ,, 33. Diamond-fields of India . . . . . . .40 144 „ 34. Diamond-fields |  | | Journal (issue) | | West Steve Voynick Mark Leatherman 50 POLKA DOT AGATE Appeal Across the Ages Bruce McKay 30 MICROSCOPIC...Cavansite specimen mined from the Wagholi quarry, Pune, India, and displayed as part of the rocks and minerals...the very prolific and popular zeolite sources in India and the Northwest. Larimar gem is not the only non-zeolite...interest, but when found in quantity in 1989 in India, cavansite suddenly became the darling of the MAY...Minerals mineral world. Cavansite was found in the Deccan Plateau volcanics in four of the more than forty |  | | Book | | tools and weapons. Gold and silver were plentiful. Agate, carnelian, chalcedony, chrysoprase, jasper and...thousand feet thick. In central India vast floods of basalt, the Deccan traps, covering an area of half a...step, was first applied to these basaltic rocks of India. Since then the term traprock has been used to refer...^Jp;Mn|iL irr * —-1 dunes, with the largest in India, Brazil and Australia. Although the major accumulations...important member of the “sillimanite group” and India is the chief producer, the principal deposit being |  | | Book | | had split up to form today's southern continents. India began drifting northwards towards Asia. wedge of...has opened up to separate Europe and America, and India has crashed into Asia, throwing up the Himalayas...former height. Now the same process is happening as India ploughs into Asia to build the Himalayas (see below)...it takes to build them tectonically. front of India than a rumpled carpet. and so actually float up... slowed by changes in climate which surveying India in the 19th century, few centimetres in height |  | | Book | | (Bottom) Most forms of onyx are produced by treating agate, a type of quartz, with heat and a solution of sugar...had split up to form today's southern.continents. India began drifting northwards towards Asia. Present...has opened up to separate Europe and Amenca, and India has crashed mto Asia, throwing up the Himalayas...ruby. The 109carat Koh-i-Noor diamond was found in India seven centuries ago. Above: Most of the world's...the S,nithsonian Museu1n in New York. Found in India, this magnificent diamond weighed 112 carats when |  | | Book (edition) | | Africa, South America,Australia,Antarctica, and India into a large landmass called Gondwana (Fig. 7),... named for an ancient region of east-central India. Much of Gondwana was in the South Polar region from...southern continents that comprised Gondwana. Africa India South America Antarctica 10 Australia the earth’s...many exposures a terracelike appearance known as traps, from the Dutch word for “stairs.” Early in the...seawater to form the infant North Atlantic Ocean. India, nestled between Africa and Antarctica, drifted |  | | Book | | bunch of grapes Dendritic branching like a tree or moss Fibrous fine strands Lamellar forming distinctly...Australia), Kimberley (South Africa), Golconda (India), Oiamontlna (Minas Gerais, Brazil) and Yakutia...sapphires come from Myanmar (Burma) Sri Lanka and India. R Colour: colou rl ess, grey or brown gra11ular...County (New York, USA), and in sands at Travancore (India). Colour: iron black Lustre; opacity: metal...dehydration of opal. Chalcedony is found as the variety agate in Rio Grande de Sul (Brazil) and ldar-Obersteln | | | Book | | bunch of grapes Dendritic branching like a tree or moss Fibrous fine strands Lamellar forming distinctly...Australia), Kimberley (South Africa), Golconda (India), Oiamontlna (Minas Gerais, Brazil) and Yakutia...sapphires come from Myanmar (Burma) Sri Lanka and India. R Colour: colou rl ess, grey or brown gra11ular...County (New York, USA), and in sands at Travancore (India). Colour: iron black Lustre; opacity: metal...dehydration of opal. Chalcedony is found as the variety agate in Rio Grande de Sul (Brazil) and ldar-Obersteln |  | | Book | | FORMED India Eurasia =. Tethys Sea 1. INDIA STARTS ITS JOURNEY When Pangea broke up, India was part...continent, Gondwana, which in turn began to split. India broke away about 145 million years ago and started...of the Tethys Sea Tethys Sea | India Eurasia Himalayas India ty Seafloor sediments Subduction...Subduction 2. OCEAN-TO-CONTINENT SUBDUCTION As India approached Eurasia, its seafloor subducted beneath the...coast of Chile 3. COLLISION BEGINS Eventually India was pushed against Eurasia as the last remnants |
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