本邦産スコロド石類の研究

概要

論文の詳細を見る
Ten scorodite samples (from seven localities in Japan) and one aluminoscorodite sample were studied., The refractive indices, as measured by dispersion methods, are shown in tabel 6., Not only the composition but also crystallinity seem to be responsible for the variation in refractive indices of these minerals., X-ray powder photographs of stalactitic and massive scorodite taken with Fek a are of the same pattern as the well known crystals from Kiura, showing their identity (Table 8 and Fig., 10)., Powder photographs show that an aluminoscorodite, too, is of the same structural type, intermediate between scordite (FeAsO 4・2H 2O) and mansfieldite (ALAsO 4・2H 2O)., Thus aluminoscorodite is analogous to barrandite, which is intermediate between strengite (FePO 4・2H 2O) and variscite (ALPO 4・2H 2O).,
日本地質学会の論文
1950-08-05