Rubín
- Ta a substancia resultant d'a oxidación d'o fierro se veiga robín.
| Rubín | ||
|---|---|---|
Caracteristicas chenerals
| ||
| Categoría: | Oxidos (minerals) | |
| Clase: | 4.CB.05 (Strunz) | |
| Formula quimica: | Al2O3 | |
Propiedatz fisicas
| ||
| Color: | Roya. | |
| Lustre: | Vitrio. | |
| Sistema cristalín: | Trigonal | |
| Habito: | Depende d'a localidat. Tabular, prisma hexagonal. | |
| Trencadura: | Concoidea | |
| Dureza: | 9 | |
| Tenacidat: | Fráchil | |
| Densidat: | 3.95–4.10 g/cm3 | |
O rubín[1] ye a variedat roya d'o corindón (Al2O3), mineral d'o grupo d'os oxidos y con dureza 9.
Por a suya alta dureza y a belleza d'a color roya ye una chema y una d'as piedras preciosas con mayor valura.
En os textos medievals aragoneses bi ha mención a rubins, tanto en os textos comercials d'o sieglo XV como en as traduccions medievals ("Libro de Marco Polo", "La Flor de las Ystorias d'Orient", "Libro d'as Marabillas d'o Mundo"; ye frecuent un plural en -ns tanto en os textos comercials como en as traduccions literarias:
Referencia
- ↑ (an) Diccionario aragonés-castellano-catalán. Estudio de Filología Aragonesa. Edacar num. 14. Zaragoza. Edicions Dichitals de l'Academia de l'Aragonés. ISSN 1988-8139. Octubre de 2024 (accesible vía web).
- ↑ Libro d'as Marabillas d'o Mundo
- ↑ La Flor de las Ystorias d'Orient
- ↑ Libro de Marco Polo
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