 | | Journal (issue) | | exploration is largely done by local villagers, who mine selectively in creek beds. Although up to 20 ct/m3...showing the sample localities at Befotaka on Nosy-Bé island and Andovokonko on Ambato peninsula. The inset...metamorphic-type sapphires from the southern part of the island (cf. Milisenda et al., 2001). Genesis of the placer...sapphire deposits near Ambilobe, in the Antsiranana Province of northern Madagascar. In late Tertiary (?) or...presumably stimulated by other finds on the main island of Madagascar (Figures 12 and 13). On Nosy-Bé, |  | | Journal (issue) | | State, USA Copper Minerals in Chalcedony from Indonesia b THE JOURNAL OF GEMMOLOGY, 38(5), 202 3 Volume...Nephrite Jade from Washingto n State, USA Copper Mine rals in Chalcedon y from Indon esia ARTICLES The...Rossman Copper Minerals in Chalcedony from Obi Island, Indonesia 512 By Joel Ivey and Brendan M. Laurs 477...of the world. Total annual supply rose 2%, with mine production at a four-year high. Visit https://www...emeralds, Miranda Group’s business strategy and mine-to-market initiatives. Download the 48-page publication |  | | Journal (issue) | | Mongolia | Natrolite from Java, Indonesia | A Second Opal from Indonesia with an Insect Inclusion | Bicoloured...characteristics of chrysocolla chalcedony from Taiwan, Indonesia and USA. This pendant/brooch designed by Paula...Characteristics of Chrysocolla Chalcedony from Taiwan, Indonesia and the USA, and Their Separation By Min Ye and...Faces: A Snapshot of the Online Ivory Trade in Indonesia, Thailand and Viet Nam in 2016 with an Update...offers webinars on pink diamonds from the Argyle mine in Australia, ruby treatments and current market |  | | Report (issue) | | Bajo de la Alumbrera in Argentina, Grasberg in Indonesia, and Bingham in the United States. 3 Regional...along convergent plate-margin boundaries or in island-arc environments. The deposits are associated with...such as at the well-studied Grasberg deposit, Indonesia (for example, Sapiie and Cloos, 2004). 4 ...core. In some deposits, for example Grasberg, Indonesia, the low-grade core is a late-stage intrusion...assemblage might include malachite + azurite + cuprite + chrysocolla, with minor amounts of other minerals |  | | Book (edition) | | BIBLIOGRAPHY OF THE GEOLOGY OF INDONESIA AND SURROUNDING ARE AS Edition 7.1 – 8 June 2020 J.T. VAN GORSEL...GORSEL Bibliography of Indonesia Geology, Ed. 7.1 1 www.vangorselslist.com 6/8/20 LIST OF CONTENTS........................................ 9 I.1. Indonesia Regional Geology........................................................ 1308 VI.1. Halmahera, Bacan, Waigeo, Molucca Sea ......................................................... 1618 IX. CIRCUM-INDONESIA ............................................. |
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