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Despite the fact that dolomite is an ubiquitous rock-forming carbonate in the geological record, the mechanism (or mechanisms) of its formation in nature remain elusive. The solution of such a mineralogical problem does [...]texto impreso
Pina Martínez, Carlos Manuel ; López-Acevedo Cornejo, María Victoria ; Pimentel Guerra, Carlos ; Toja Aguirre, Miguel ; Otero Díaz, Luis Carlos ; Ávila Brande, David ; Arenas Esteban, Daniel ; Crespo López, Ángel | 2019-06-21El objetivo de este proyecto es la creación de nuevo material didáctico para la enseñanza de la cristalografía. En concreto, se presentan videoclips divulgativos sobre la forma y estructura de los cristales, los procesos básicos de cristalizació[...]texto impreso
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Pina Martínez, Carlos Manuel ; Pimentel Guerra, Carlos ; Crespo López, Ángel | Elsevier Science B.V., Amsterdam. | 2020-08-05Dolomite is a carbonate mineral frequently found in sedimentary rocks from Proterozoic to Holocene. In the Iberian Peninsula, dolomites appear in a wide number of geological formations and they can be considered as representative of dolomites cr[...]texto impreso
Pimentel Guerra, Carlos ; Gnecco, Enrico ; Pina Martínez, Carlos Manuel | American Chemical Society | 2018Growth of otavite (CdCO3) and spherocobaltite (CoCO3) has been promoted on dolomite (10.4) surfaces at room temperature by immersing cleaved dolomite crystals in highly supersaturated solutions with respect to those phases. In situ atomic force [...]texto impreso
Agmon, Liron ; Shahar, Itai ; Yosufov, Danny ; Pimentel Guerra, Carlos ; Pina Martínez, Carlos Manuel ; Gnecco, Enrico ; Berkovich, Ronen | Nature Publishing Group | 2018-03-16Friction force microscopy (FFM) in aqueous environments has recently proven to be a very effective method for lattice-resolution imaging of crystal surfaces. Here we demonstrate the use of ethanol for similar measurements on water-soluble materi[...]texto impreso
Crespo López, Ángel ; Pimentel Guerra, Carlos ; Pedraz, Patricia ; Pina Martínez, Carlos M. | Springer | 2017The magnesium and iron sulfate mineral slavikite has been found in Pastora Mine, Aliseda, Cáceres, Spain, in association with a number of other sulfate minerals such as alunogen, fibroferrite and tschermigite. Remarkably, slavikite is the major [...]texto impreso
Pimentel Guerra, Carlos ; Mougin, Karine ; Gnecco, Enrico ; Pina Martínez, Carlos Manuel | Elsevier | 2020-11-15Cleaved dolomite (CaMg(CO3)2) crystals were immersed in supersaturated, saturated, and undersaturated solutions with respect to zabuyelite (Li2CO3), and the growth process was characterized using atomic force microscopy (AFM) and scanning electr[...]texto impreso
Pina Martínez, Carlos Manuel ; Pimentel Guerra, Carlos ; Gnecco, Enrico | Springer International Publishing Switzerland | 2015Lateral Force Microscopy (LFM) is a very suitable technique to investigate the structure and reactivity of mineral surfaces in liquids. Studies performed in the last two decades have shown that the dissolution and growth of mineral surfaces imme[...]texto impreso
López-Acevedo, Victoria ; Pina Martínez, Carlos Manuel ; Vindel, Elena ; Pimentel Guerra, Carlos ; Otero Díaz, Luis Carlos ; Ávila Brande, David ; Crespo López, Ángel | 2016-03-14En este trabajo se aborda el diseño y la construcción de modelos de las cinco redes planas (oblicua, rectangular, rómbica, cuadrada y hexagonal) sobre los que se pueden situar sus elementos de simetría (ejes de rotación, planos de simetría y pla[...]texto impreso
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Background: Hygroscopic salts are often applied as foliar fertilizers and calcium (Ca) salts have been used as model for cuticular permeability studies, with focus on their Point of Deliquescence (POD). Aim: This study was aimed at characterizi[...]texto impreso
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La dolomita es un mineral carbonático de calcio y magnesio, CaMg(CO3)2, ubicuo en la corteza terrestre. Después de la calcita, CaCO3, es el segundo mineral carbonático más común. Desde su descripción en 1791, la dolomita se ha intentado sintetiz[...]
