Tridimita
Multi tool use
A tridimita ou tridimite (do grego Trydimos (tripleto) devido à ocorrência frequente de maclas com três cristais) é um mineral de silicato e um polimorfo de alta temperatura do quartzo. Ocorre apenas em rochas magmáticas efusivas ácidas de alta temperatura (riolitos, obsidianas, traquitos, andesitos e dacitos). Também pode ser encontrado em meteoritos.
Descrito pela primeira vez em 1868. A ocorrência tipo situa-se em Hidalgo, México.
Usos |
Areia para moldes de fundição; fabricação de vidro, esmalte, saponáceos, dentifrícios, abrasivos, lixas, fibras ópticas, refratários, cerâmica, produtos eletrônicos, relógios; indústria de ornamentos; fabricação de instrumentos ópticos; fabricação de vasilhas químicas; refratários etc. Geralmente associada a cristobalita.
Ver também |
- stishovita
- cristobalita
- coesita
Ligações externas |
- (em inglês)Mindat
- (em inglês)Webmineral
- (em inglês)Mineral galleries
 |
Este artigo sobre um mineral ou mineraloide é um esboço. Você pode ajudar a Wikipédia expandindo-o. |
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