Fandom

CeraWiki

Rhodonite

9.402páginas en
el wiki}}
Crear una página
Discusión0 Compartir

¡Interferencia de bloqueo de anuncios detectada!


Wikia es un sitio libre de uso que hace dinero de la publicidad. Contamos con una experiencia modificada para los visitantes que utilizan el bloqueo de anuncios

Wikia no es accesible si se han hecho aún más modificaciones. Si se quita el bloqueador de anuncios personalizado, la página cargará como se esperaba.

Archivo:Rodonita2EZ.jpg
Archivo:Rhodonite.JPG

Rhodonite is a manganese inosilicate, (Mn,Fe,Mg,Ca)SiO3 and member of the pyroxene group of minerals, crystallizing in the triclinic system. It commonly occurs as cleavable to compact masses with a rose-red color, often tending to brown because of surface oxidation.

Rhodonite crystals often have a thick tabular habit, but are rare. It has a perfect, prismatic cleavage, almost at right angles. The hardness is 5.5–6.5, and the specific gravity 3.4–3.7; luster is vitreous, being less frequently pearly on cleavage surfaces. The manganese is often partly replaced by iron, magnesium, calcium, and sometimes zinc which may sometimes be present in considerable amounts; a greyish-brown variety containing as much as 20% of calcium oxide is called bustamite; fowlerite is a zinciferous variety containing 7% of zinc oxide.

Rhodonite has also been worked as an ornamental stone. In the iron and manganese mines at Pajsberg near Filipstadt and Långban in Värmland, Sweden, small brilliant and translucent crystals (pajsbergite) and cleavage masses occur. Fowlerite occurs as large, rough crystals, somewhat resembling pink feldspar, with franklinite and zinc ores in granular limestone at Franklin Furnace in New Jersey.

The inosilicate (chain silicate) structure of rhodonite has a repeat unit of five silica tetrahedra. The rare polymorph pyroxmangite, formed at different conditions of pressure and temperature, has the same chemical composition but a repeat unit of seven tetrahedra.

Archivo:Rhodonite09.jpg

Rhodonite is the official gem of Commonwealth of Massachusetts [1].

ReferencesEditar

  1. M.G.L. - Chapter 2, Section 15
de:Rhodonit

es:Rodonita fr:Rhodonite it:Rhodonite lt:Rodonitas nl:Rhodoniet ja:ばら輝石 pl:Rodonit pt:Rodonita ru:Родонит sk:Rodonit fi:Rodoniitti uk:Родоніт

Spotlights de otros wikis

Wiki al azar