Paper
New Mineral Names
Published Nov 1, 2014 · D. Belakovskiy, Fernando Cámara, O. Gagné
American Mineralogist
186
Citations
0
Influential Citations
Abstract
The following new minerals are discussed in this issue: langbanshyttanite, pseudolyonsite, and yangzhumingite. These new minerals have been described in the European Journal of Mineralogy and are reported here. N.V. Chukanov, I.V. Pekov, E. Jonsson, N.V. Zubkova, Y.E. Filinchuk, D.I. Belakovskiy, and D.Yu. Pushcharovsky (2011) Langbanshyttanite, a new low-temperature arsenate mineral with a novel structure from Langban, Sweden. Eur. J. Mineral, 23, 675–681. The new mineral langbanshyttanite was discovered in a specimen from the Langban mine Filipstad district, Varmland County, Bergslagen ore province, Sweden. The carbonate-hosted Langban deposit (59.86°N, 14.27°E) is, together with related occurrences in the western part of the Palaeoproterozoic Bergslagen ore province in south central Sweden, characterized by anomalously Pb-As-Ba-Be-Sb-rich, metamorphosed stratabound Fe and Mn oxide ores with associated skarn units, sulfide assemblages, as well as abundant vein and fissure-hosted mineral assemblages. The name is for Langbanshyttan, which is the old name of both the mine, mining village, and smelter that in more recent times has been known plainly as “Langban” (Langbanshyttan actually means “Langban’s smelter” or “Langban’s furnace.” Langbanshyttanite occurs as a very late, low-temperature species in the deposit. It crystallized during the last stage of hydrothermal activity involving metal remobilization in the Langban system, post-dating regional metamorphism of the volcanic-hydrothermal ores and their host rocks. Based on existing evidence, these minerals formed at very low temperature and pressure, in this case most likely below 70 °C. The mineral formed in fractures and corrosion-veinlets, post-dating calcite, in a Mn-oxide-bearing, Mn-silicate-rich rock. Associated late-stage minerals are calcite, antigorite, sparse euhedral trigonite, and a few microscopic aggregates of a so far unidentified As-bearing mineral. Typically, both calcite and antigorite exhibit evidence of being partly corroded away prior to langbanshyttanite formation. Trigonite, coeval with langbanshyttanite, occurs as sparse, euhedral crystals. The groundmass to the veinlets or fractures mainly consists …
Highly CitedLangbanshyttanite is a new low-temperature arsenate mineral with a novel structure from Langban, Sweden, which crystallizes during metal remobilization at low temperatures and pressures.
Full text analysis coming soon...