First evidence of wulfenite in Calabria Region (Southern Italy)

Abstract

This data article contains mineralogical and chemical data of the wulfenite (PbMoO4) sampled from mine of Fiumarella in Calabria region (Southern Italy). Wulfenite is a rare mineral belonging to the class of minerals called molybdates and if found in large amounts it can be used for the extraction of molybdenum. In the mine of Fiumarella, in addition to primary minerals such as barite, galena, cerussite, anglesite, fluorite and chalcopyrite, wulfenite was also detected. Wulfenite crystals are bipyramidal, few microns in size and grow as single crystals that can reach 1 mm. Methods for obtaining the data sets include optical microscopy, micro X-Ray Fluorescence and micro-Raman spectroscopy.

Linarite and connellite dataset from Calabria region (Southern Italy): First evidence

“…The area has been intensively exploited till the end of the eighties and about 5000 m of galleries have been excavated mainly to extract barite, fluorite, galena and chalcopyrite [1,2]. Recently wulfenite crystals have also been identified in the Fiumarella mine [6].…”

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Fig. 1Location of the Fiumarella mine and geological map of the area (After [6]). The barite vein where the linarite and connellite crystals were found is indicated by the red arrow.

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Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

“…Raman spectroscopy is a nondestructive technique that allows to perform rapid in situ analyses prior to the eventual application of more expensive and destructive tests (Sauerer et al 2017;Schmidt et al 2017;Henry et al 2018Henry et al , 2019Khatibi et al 2018b;Schito & Corrado 2018;Wilkins et al 2018). Mineral identification is accomplished through the comparison of the acquired spectra with those stored in databases (Giarola et al 2012;Bloise et al 2018;Miriello et al 2018). In addition, confocal micro-Raman spectroscopy can be applied to characterize solid, liquid, or gaseous inclusions within samples (Frezzotti et al 2012); for example, this technique has been utilized to characterize amorphous materials and non-crystalline molecules within rocks, allowing the discrimination between different types of carbonaceous materials and other noncrystalline organic or inorganic compounds within rocks (Greco et al 2018).…”