...L. Bindi; N. E. Pingitore Abstract An examination of a specimen of aguilarite from the type locality provides new data on the chemistry and structure of this mineral. The chemical formula of the crystal used for the structural study is (Ag 3.98 Cu 0.02 )(Se 0.98 S 0.84 Te 0.18 ), on the basis of 6...

...Robert R. Coats Abstract Examination of polished specimens of ores from the Comstock Lode has revealed the presence, hitherto unsuspected, of the silver sulpho-selenide, aguilarite. Aguilarite was not recorded by E. S. Bastin 1 in the only previous paper on the ores of the Comstock Lode. It occurs...

... prospect, Los Llantenes District of La Rioja Province, Argentina. The new mineral species is generally associated with chrisstanleyite, particularly in intimate intergrowths, clausthalite, naumannite, tiemannite, klockmannite, berzelianite, umangite and aguilarite. Mercurian silver, native gold, and two...

... sulfide content. The association of sulfides is the main gold carrier and is dominated by pyrite, chalcopyrite, sphalerite, ± galena (grey sulfide –quartz stage). Minor phases are silver-rich sulfides and sulfosalts, such as acanthite–aguilarite (Ag 2 S–Ag 4 SSe), polybasite–pearceite [(Ag,Cu) 16 (Sb...

...Fig. 5. Variations in S and Se contents in silver sulfoselenides from the Rogovik deposit (data of electron microprobe analysis). 1 , ideal compositions of acanthite, aguilarite, and naumannite; 2 , data from Kuznetsov et al. (1992) ; 3 , results of this study. ...

... in chalcopyrite, intergrown with quartz and adularia. Sub1UC3N014a. (D) Electrum in chalcopyrite intergrown with quartz and chlorite (weakly bladed texture). Sub11UC3c. (E) Selenian galena veins. Sub113C (K2 vein). (F) Angular aguilarite grains. Sub1UC03N014. (G) Anhedral electrum intergrown with chalcopyrite...

... of interstratified chlorite-smectite and microcrystalline quartz alternately banded with adularia and comb-texture quartz. Gold-silver-bearing minerals include electrum, aeanthite- aguilarite, polybasite-pearceite, pyrargyrite-proustite, jalpaite, mckinstryite, hessite, an Ag-Te-Se-S mineral, and tetrahedrite.The...

..., subparallel to the other margin of the caldera and also located in caldera-fill lithologies. Silver, the dominant precious metal, occurs mainly as acanthite, silver sulfantimonides, such as freibergite, and native silver. Free gold and electrum were identified optically, and aguilarite (Ag 2 SeS...

... assemblage, the temperatures for the electrum-sphalerite-pyrite-Ag- Se Te mineral (naumannite, aguilarite, hessitc) assemblage are not in good agreement with the filling temperatures of fluid inclusions. A less than unity activity of Ag 2 S in Ag-Se-Te minerals may explain this disagreement. GeoRef...

... and oil (refractive index 1.515), and the results are presented in Table 1 and Fig. 1 . The reflectance values are close to those of petzite (37.8–45.0%) and hessite (39–43.6%) in air. However, kurilite has convex reflectance curves that are similar to cervelleite (Ag 4 TeS) or aguilarite (Ag 4 SeS...

... with the international J.C.P.D.S. reference no. 33-587 of uytenbogaardtite Abbreviations: Int. = Intensity, ns = not significant, nd = not determined The main ore facies is characterized by a predominance of minerals of the acanthite (Ag 2 S)-aguilarite (Ag 4 SeS) series in the form of veinlets ( Fig. 3a...

... ordering of S and Se in them seems highly improbable. The similarity in the radii of Se 2– and S 2– anions lead to their substitution in solid solutions of many related minerals and synthetic compounds. No cases of their ordering are known to date. Aguilarite, the only mineral whose official IMA formula...

.... They include description of a new mineral, motukoreaite (1977), and several records of rare or unusual minerals (e.g. aguilarite, awaruite, baricite, bayerite and doyleite, dahlite and whitlockite, terrugite and nobleite, and uricite). Most are jointly authored with the finder who arrived with the ‘unknown...

... in a black mudstone of Miocene age and are composed of quartz in association with minor amounts of adularia, chlorite, vermiculite, johansenite, calcite, pyrite, chalcopyrite, sphalerite, galena, hematite, electrum, and silver minerals such as aguilarite, pearcite-polybasite series minerals, pyrargyrite...