OED's earliest evidence for alabandite is from 1868, in the writing of James Dana, geologist, zoologist, and teacher. From a proper name, combined with an English element. Etymons: proper name Alabanda, ‑ite suffix 1. See etymology. Nearby entries.
Specimens of Alabandite with good crystallization are especially scarce. Rarity, Value & Variations: Very rare. Alabandite has a Mohs hardness of 3.5 to 4. It is a high vibration stone. The crystals usually form in clusters, although single …
Săcărâ Au-Ag-Te ore deposit is located in the Metaliferi Mountains in Romania and it is best known for the famous Au-Ag tellurides; it is the largest telluride mineral accumulation in Europe ...
The alabandite phase, the stable sulphide in both CaS and MnS, has a miscibility gap at lower temperatures, as is shown in [30], [43], [44]. These studies measure the miscibility gaps and they are relatively consistent with each other. ... SLAG3-TCS Fe-containing Slag Database v3.1 as supplied by Thermo-Calc Software AB, Thermo-Calc, Stockholm ...
Use of SiMn slag requires detailed knowledge of its chemical, mineralogical, pozzolanic, volume expansion and strength properties in addition to reaction kinetics which plays an important role in the final valorization of slag as pozzolanic material. ... alabandite (α-MnS) and CB, and the photocatalytic degradation of dye pollutant belongs to ...
The slag phase is mostly composed of silicates that are not soluble in acid; therefore, sodium hydroxide (NaOH) is utilized as the lixiviant ... (MgAl 2 O 4), alabandite (MnS), and forsterite (Mg 2 SiO 4) (Fig. 8 b). Fig. 8 c presents SEM-EDS elemental mapping results of the slag particle. As can be seen, Sc is highly associated with Si and is ...
Basic slag mineralogy does roughly conform to the thermochemical dictates of phase equilibrium. The list of primary phase fields of mineral crystallization in liquidus diagrams within the system FeO-CaO-MgO …
Alabandite is an uncommon sulfide with a fairly simple chemical formula. It was first described as a mineral species in 1784 by Franz-Joseph Müller von Reichenstein, an Austrian mineralogist and mining engineer. (Reichenstein is credited for discovering tellurium.) The name Alabandite is derived from the Alabanda Region of Ayden, Turkey.
The solubilities of Fe and Mn in alabandite, pyrrhotite and liquid sulphide have been reported at various sulphur activities [8], [9], [10]. In [8] the solubility of Fe in alabandite in equilibrium with FCC-iron was investigated. The solubilities of Fe in alabandite and Mn in pyrrhotite were investigated at various sulphur activities in [10].
Alabandite also occurs in low-temperature vein deposits in the Earth's crust, and troilite occurs sporadically in magmatic sul-fide assemblages of mafic/ultramafic rocks. The scientific and
remnants of mining activity (smelters, dumps, slag heaps, adits), as well as local geographic names reminiscent of the exploitation of iron and silver ores, only few descrip-
The Ag-rich, alabandite-bearing veins of the Santo Toribio deposit formed during two major stages. The early stage is characterized by deposition of arsenopyrite, pyrite, quartz, Mn-sphalerite ...
Alabandite is a rare manganese sulfide from this locale, and was not discovered until 1965 and described until 1971. This elegant, wing-like specimen is from Level 17 of the NBHC Mine. © Rob Lavinsky & irocks
View Alabandite Mindat View Alabandite . Alabandite from Lucky Cuss mine, Tombstone, Cochise Co., Arizona, United States Special Info EDS Confirmed. Dull black grains and crystals to 2mm throughout mass with probable …
Synchrotron radiation S K- and L-edge X-ray absorption near-edge structure (XANES) spectra are reported for the cubic, rocksalt (B1) structure sulfides niningerite (MgS), alabandite (MnS), and oldhamite (CaS), and for their solid solutions (Mn,Fe)S and (Mg,Mn)S, and S L-edge XANES spectra are reported also for (Mg,Fe)S solid solutions. Pre-edge features at …
Evolution of local electronic structure in alabandite and niningerite solid solutions [(Mn,Fe)S, (Mg,Mn)S, (Mg,Fe)S] using sulfurK- andL-edge XANES spectroscopy Farrell, Shannon P. Fleet, Michael E.
Dark gray stalactitic Alabandite abundantly sprinkled with small micro rounded pale yellow Iodargyrite crystals (light areas in photo. Most likely from Zinc Corp Mine or Broken Hill Proprietary Mine. The alabandite crystals show symmetry …
The presence of Alabandite in the pastes, the remaining phase of the unreacted slag, is expected since the quantification of the slag phases carried out by XRD in previous works [8] detects 2 ± 1% of this crystallized phase together with a …
The diffraction peaks at 34.19°, 49.14° and 61.22° correspond to alabandite (cubic α-MnS, JCPDS No. 72–1534) which derives from the silicomanganese slag [26]. ... When the water/slag ratio of the pastes is in the range of 0.5–0.8, it is observed that the geopolymer pastes can fill and wrap in the pores and surface of the stainless steel ...
Question: Two minerals- alabandite and pyrolusite- are both black, but alabandite is green in its powdered form whereas pyrolusite is black in its powdered form. They differ in color. specific gravity. luster. streak.
Alabandite occurs as small (<1 mm) black grains included in manganese-bearing calcite. On freshly broken surfaces a metallic luster can be observed. Otherwise it quickly becomes a dull, …
Abstract Synchrotron radiation S K- and L-edge X-ray absorption near-edge structure (XANES) spectra are reported for the cubic, rocksalt (B1) structure sulfides niningerite (MgS), alabandite (MnS), and oldhamite (CaS), and for their solid solutions (Mn,Fe)S and (Mg,Mn)S, and S L-edge XANES spectra are reported also for (Mg,Fe)S solid solutions. Pre …
Synchrotron radiation S K- and L-edge X-ray absorption near-edge structure (XANES) spectra are reported for the cubic, rocksalt (B1) structure sulfides niningerite (MgS), alabandite (MnS), and ...
Alabandite forms in epithermal polymetallic sulfide veins and low-temperature manganese deposits. It occurs with acanthite, calcite, chalcopyrite, galena, pyrite, quartz, rhodochrosite, …
Alabandite was first described in 1784 by Franz-Joseph Müller von Reichenstein. [4] The mineral name is derived from its supposed discovery locality at Alabanda (Aïdin) in Turkey. [3] Alabandite forms in epithermal polymetallic sulfide veins and low-temperature manganese deposits. It occurs with acanthite, calcite, chalcopyrite, galena, pyrite, quartz, rhodochrosite, rhodonite, sphalerite ...
Detailed description, properties and locality information guide about the manganese ore mineral alabandite. Minerals Complete Information Guide to Rocks, Minerals, & Gemstones
Alabandite earring studs are not very common, but these can be a good option if you are willing to experiment and try something new. Conclusion. In conclusion, you can see that alabandite is a useful stone that is said to have a lot of benefits: spiritually, physically, mentally, and emotionally. It also feels super smooth to the touch, which ...
A fine alabandite crystal from the famous Merelani Hills, Tanzania. Alabandite is a rare manganese sulfide and Merelani Hills has produced among the finest examples for the species. It displays a sharp octahedral crystal. It is dark silvery-grey, with reddish coating and matt. Some prismatic green crystals, probably diopside, are seen at the base.
Alabandite, Uchucchacua Mine, Lima Department, Peru. ~7.5 cm across and largest crystal 2.5cm Alabandite is a black manganese mineral and one that most collectors don't fight over …
Alabandite Mn2+S c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Cubic. Point Group: 4/m 32/m. Crystals cubic or octahedral, to 1 cm. Commonly massive, granular. …
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