| 单词 | veatchite-a |
| 释义 | > as lemmasveatchite-A Any of three polymorphs of a hydrous strontium borate, Sr2[B5O8(OH)]2·B(OH)3·H2O, of which two (veatchite and p-veatchite) are monoclinic and one ( veatchite-A) is triclinic. ΘΚΠ the world > the earth > minerals > types of mineral > borates > [noun] > strontium borates veatchite1938 tunellite1961 1938 G. Switzer in Amer. Mineralogist 23 411 It seems fitting to name this new borate veatchite after Dr. John A. Veatch, who was the first to detect the presence of borates in the mineral waters of California, on January 8, 1856. 1960 Mineral. Mag. XXXII. 500 A mineral from the Permian lower evaporite bed of the Eskdale No. 2 boring in Yorkshire... Single-crystal X-ray work now proves that this mineral is p-veatchite. 1979 Amer. Mineralogist 64 362 A third modification of veatchite occurs in Emet colemanite deposit, Kütahya, Turkey, as white cauliflower-shaped nodules associated with colemanite, hydroboracite, realgar, orpiment and montmorillonite. The new mineral is triclinic... Crystals are transparent, colorless... The new modification is named veatchite-A. < as lemmas |
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