5 documents found, page 1 of 1
Parâmetros normativos das rochas ornamentais pegmatíticas do Seridó Oriental Pa...
Leal Neto, Antonio; Mattos, Irani Clezar; Silva, Francisco Diones Oliveira; Clemente, Igor Magalhães; Nogueira Neto, José de AraújoThe rocks studied in the present work are known commercially as White Fuji, Capuccino Fuji and Golden Fuji. They come from the same mining front located in the municipality of Pedra Lavrada/PB. They have a similar mineral composition, consisting mainly of quartz, plagioclase, muscovite, microcline and garnet with modal composition between 5% and 34% and accessory minerals, with a modal composition of less than ...
Technological Characterization and Radon Exhalation Rate of an Olivine Diabase ...
Silva, Francisco Diones Oliveira; Neto, Antônio Leal; Soares, Wollker Cunha; Neto, José de Araújo Nogueira; Artur, Antônio Carlos [UNESP]Made available in DSpace on 2022-04-29T08:40:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01; Radon gas (²²²Rn) after cigarette smoking, has been considered the leading cause of lung cancer in the United States, according to studies, 21,000 people die each year from gas inhalation. Thus, it is very important that radon concentrations be known indoors: residences, mines, galleries, among others. ...
Color and image analysis of butterfly beige, butterfly gold and butterfly green...
Bolonini, Thiago Motta [UNESP]; Godoy, Antonio Misson [UNESP]; Figueiredo, Carlos Alberto Machado; Maurício, António; Pereira, Manuel FranciscoMade available in DSpace on 2022-04-29T08:27:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-01-01; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); The dimension stones are commercially known as Butterfly Beige, Butterfly Gold and Butterfly Green and correspond to quartz syenites with hypersthene that are explor...
Avaliação da cor e taxa de exalação de radônio em rochas graníticas entre ciclo...
Silva, Francisco Diones OliveiraIn this thesis are willing data used for the assessment of the analyzes performed on three types of dimension stone (Juparana Bordeaux, Branco Nevasca and Golden Ártico), in natural state and after several cycles of accelerated aging, correlating with the gas exhalation rate radon issued by the analyzed lithologies. In the samples were conducted permeability, porosity, colorimetry, image analysis, petrographic ...
Caracterização tecnológica e radiométrica de um diabásio da região de Apuiarés ...
Silva, Francisco Diones OliveiraThis paper presents the technological and mineralogical characteristics of a diabase, which outcrop in the form of dike is located in the district Canafístula in Apuiarés - CE. In order to assess their qualities for application as ornamental, were carried out technological tests of fitness levels and physical-mechanical, based on standards from ABNT, as well as radiometric measurements of the amount of uranium,...