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eckerite

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Journal Article
Published: 01 June 2015
Mineralogical Magazine (2015) 79 (3): 687-694.
... and yellow, fibrous smithite. In thick section eckerite is opaque with a metallic lustre and shows a dark orange-red streak. It is brittle; the Vickers hardness (VHN25) is 70 kg/mm2 (range: 64–78) (Mohs hardness of ~2½–3). In reflected light, eckerite is moderately bireflectant and weakly pleochroic from...
FIGURES
Image
<b>Eckerite</b> (reddish-brown) in association with yellowish, fibrous smithite an...
Published: 01 June 2015
F ig . 1. Eckerite (reddish-brown) in association with yellowish, fibrous smithite and realgar.
Image
The crystal structure of <b>eckerite</b> projected down [010]. The horizontal dire...
Published: 01 June 2015
F ig . 2. The crystal structure of eckerite projected down [010]. The horizontal direction is the a axis. Ag, Cu (Ag2 position), As and S are given as white, red, black and yellow spheres, respectively. The unit cell is outlined.
Journal Article
Published: 01 June 2016
American Mineralogist (2016) 101 (6): 1489-1496.
... in the voids of the framework. The mineral is named in honor of the Russian mineralogist, and specialist in studies of ore deposits, Yuriy Borisovich Marin (b. 1939). The type specimen is deposited in the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia. F.C . Eckerite (IMA 2014...
Journal Article
Published: 01 February 2015
Mineralogical Magazine (2015) 79 (1): 51-58.
..., F., Graeser, S., Tropper, P. and Raber, T. (2015) Eckerite, IMA 2014-063. CNMNC Newsletter No. 23, February 2015, page 52; Mineralogical Magazine , 79 , 51–58. Type materialis deposited in the collections of the Central Siberian Geological Museum of the V.S. Sobolev Institute of Geology...
Journal Article
Published: 01 August 2017
European Journal of Mineralogy (2017) 29 (4): 679-688.
.... In the past two years ten new mineral species have been described from the Lengenbach quarry. They all are structurally related to existing species: eckerite ( Bindi et al ., 2015a ) to xanthoconite and pyrostilpnite; ralphcannonite and ferrostalderite ( Bindi et al ., 2015b ; Biagioni et al ., 2016...