 | | Report (issue) | | Na2Fe3+(SO4)2(OH)·3H2O Sideronatrite Crystal Data: Orthorhombic (2O polytype) or monoclinic (2M polytype)...massive. Physical Properties: Cleavage: On {010}, perfect; on {100}, fair. Tenacity: Slightly flexible...reversibly dehydrates to metasideronatrite depending on relative humidity and sunlight. Optical Properties:...saline water in metallic veins, coal measures, and in sea-spray environments. Association: Metasideronatrite...Jujuy Province, Argentina. On the Urus Plateau, Cheleken Peninsula, Caspian Sea, Turkmenistan. From north |  | | Report (issue) | | crusts. Physical Properties: Cleavage: On {100}, {010}, perfect; on {001}, nearly perfect. Fracture: Fibrous...D(calc.) = 2.68 Reversibly alters from sideronatrite depending on relative humidity and exposure to sunlight;...climates but stably formed in sea-shore environments. Association: Sideronatrite, metavoltine, ungemachite... near Delabole, Cornwall, and at Barton-on-Sea, Hampshire, England. From north of Ballybunion, Co. Kerry...signifying a lower hydrate, and its relation to sideronatrite. Type Material: n.d. References: (1) Palache |  | | Book | | I"t\TEREST Co,zfi·onting catastrophe: nell'perspecrh·es on n:iwra d's sters Da,·id Alexander Geology and landscapes...PO Box 315. Harpenden. Hertfordshire AL5 2ZD. England Telephone: +44 (0)1582 762413 Fax: +44 (0)870 055...Cataloging-in-Publication Data are aYailable Typeset in Times New Romanand Helvetica Printedand bound by L.E.G.OSpA...House in Derbyshin: ( ooper 2005) and the promise of new mineral galleries in Edinburgh in '.!011. I hope...appreciate the importance ofh:l\'ing many specimens on display. The next issue to surface during the writing |
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