本邦産スコロド石類の研究 : 主として産地及び性状について

概要

論文の詳細を見る
Scorodite from various localities in Japan have been described., One from a limestone cave at Okumitate near the Mitate mine, Miyazaki Prefecture, is pale green stalactitic mass., Botryoidal scorodite was also found from the Tsunotsu mine, Shimane Prefecture and several other mines., Fine crystals of scorodite have further been obtained from contact deposits in Chichibu, Saitama Prefecture and Kitabira, Yamaguchi prefecture., The crystal faces of the mineral from Chichibu are a(100), d(120) and p(111), and those from Kitabira are a(100), b(010), d(120) and p(111)., The latter has abundant vicinal faces., A new name "aluminoscorodite" has been proposed for a mineral which has a composition intermediate between FeAsO_4・2H_2O and AlAsO_4・2H_2O., It occurs together with scorodite in a bog iron deposit at Kamikimobetsu, Hokkaido, as radiated or spherulitic aggregates of microscopic crystals., The chemical analysis will be published in another paper., X-ray powder photographs (Fe K_α) were taken.,
日本地質学会の論文
1949-02-20