 | | Journal (article/letter/editorial) | | Liddicoatitic Tourmalines ANJANABONOINA DISTRICT, MADAGASCAR T he tourmaline database, like that of...description of liddicoatite from Anjanabonoina, Madagascar, as the calcium analogue of the well-known gem...does indeed exist, perhaps just not at its type Madagascar locality. So, determining that a crystal is actually...color-zoned crystals at its premier Anjanabonoina, Madagascar, type locality, a source that has produced wonderful...Itenina, south of Antsirabe, Fianarantsoa, Haute Matsiatra, Madagascar. The 55 × 50 × 2-mm slice illustrates |  | | Report (issue) | | Powder Pattern: Sakavalana pegmatite, Fianarantsoa province, central Madagascar. 3.271 (100), 2.871 (52)...28 101.54 (1) Sakavalana pegmatite, Fianarantsoa province, central Madagascar; laser ablation ICP mass...core of a differentiated, rare-element, granitic pegmatite dike. Association: Smoky quartz, K-feldspar (‘amazonite’)...Distribution: From the Sakavalana pegmatite, Ampandramaika-Malakialina pegmatite district, a few kilometers northwest...Ambatovita village, Fianarantsoa province, central Madagascar. Also reported from Afghanistan and Myanmar. |  | | Journal (article/letter/editorial) | | is concentrated along and adjacent to aplite-pegmatite contacts, as well as along thin discordant mica-rich...future generations. BERYLLIUM MINERALIZATION OF PEGMATITE POCKETS IN THE WAUSAU COMPLEX, MARATHON COUNTY...other less well-developed forms. In rare cases, beryl (aquamarine or goshenite) has been observed. Late-stage...abundant muscovite, were observed in only one pegmatite. Beryllium mineralization in these miarolitic...pegmatites occurred during the late stages of pegmatite formation. Primary phenakite appears to have formed |  | | Journal (article/letter/editorial) | | from the type locality in Ambatovita (central Madagascar) were investigated by electron microprobe analysis...a comparison with the absorption bands found in beryl carried out. In particular, two-weak absorption...considered as one of the members of the ‘‘beryl group’’, along with beryl sensu scricto (Be3Al2Si6O18; Aurisicchio...from the Sakavalana granitic pegmatite located near Ambatovita (Madagascar), along with a geological description...27.8 Å. Pezzottaite is the only member of the beryl group with a rhombohedral lattice, all the other |  | | Journal (issue) | | Bearing Hydrothermal Breccias in the Stedman Mining District, Southeastern California, Ariz. Geological Soc...Chiavenna, Sondrio, Lombardy, as crusts coating beryl and usually accompanied by bavenite. Other minerals...Crystals up to 0.4 mm have been observed. 12 Madagascar Orange-brown crystals up to 3mm, associated with...Sakavalana mine, Ambatovita, Ampandramaika-Malakialina Pegmatite Field, Fianarantsoa Province. Norway Occurs...Occurs at several sites in the syenite pegmatite of the Oslo Region: Originally found at the Heia larvikite |  | | Journal (issue) | | pg. 269 284 Pezzottaite from Ambatovita, Madagascar: A New Gem Mineral Brendan M. Laurs, William...of this new cesium-rich member of the beryl group. 302 Red Beryl from Utah: A Review and Update James...world’s only known occurrence of gem-quality red beryl. pg. 299 REGULAR FEATURES _____________________...Blue beryl discovery in Canada • Gem-quality corundum from Colombia • Emeralds from Madagascar with strong...THE COVER Within the beryl group, two of the rarest gem materials are red beryl and the new mineral pezzottaite |  | | Show/Event (guide) | | Francis 2:45 B e r y l l i u m mineralization of pegmatite pockets in the Wausau Complex, Marathon County...Lupulescu 4:30 M i n e r a l s of the Sakavalana pegmatite, near Ambatovita, Central MadagascarbyWm. B. Simmons...Pezotta, and F.C. Hawthorne 4:45 T h e Zuebaoding beryl-scheelite vein deposit, ChinabyB. Ottens 5:00 N...other less well developed forms. In rare cases, beryl (aquamarine or goshenite) has been observed. Late...abundant muscovite, were observed in only one pegmatite. 9 Beryllium mineralization in these miarolitic |  | | Book | | 314–321, 3rd Floor, Plot 3, Splendor Forum, Jasola District Centre, New Delhi – 110025, India 103 Penang Road...semiprecious gems (including emerald, topaz, ruby, beryl, turquoise, and several varieties of silica – carnelian...higher orders [e.g., diamond, quartz, sapphire, and beryl were lumped into the order Hyalinea (hyaline means...known crystal may be a beryl (Be3Al2(SiO3)6) from the Malakialina pegmatite, Madagascar; the crystal is 18...hornblende, calcite, siderite, smithsonite, topaz, beryl, chrysoberyl, tourmaline, scapolite, fluorite, spinel |
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Malakialina pegmatite, Fitampito, Ikalamavony District, Haute Matsiatra, Madagascar