单词 | pharmacosiderite |
释义 | pharmacosideriten. Mineralogy. A mineral of the cubic crystal system consisting of a hydrated arsenate of iron and potassium (often also containing other elements, esp. barium or sodium), and usually occurring as minute greenish or brownish crystals of cubic or tetrahedral form. ΘΚΠ the world > the earth > minerals > types of mineral > arsenates > [noun] > hydrous arsenates of iron siderite1784 siderites1794 pharmacosiderite1835 symplesite1844 the world > the earth > minerals > ore > [noun] > metal ore > iron ore > others bloodstone1504 haematite1543 yellow share1590 keel1596 brush-ore1678 mush1686 brush-iron-ore1695 iron glance1792 specular iron (also iron ore)1796 steel-ore1796 oligistc1803 black band1811 old man1811 spathose iron-ore1823 pitticite1826 siderose1834 blink klip1835 pharmacosiderite1835 sphaerosiderite1837 fossil ore1846 jacutinga1846 vignite1846 siderite1848 junckerite1865 needle iron-ore1867 xanthosiderite1868 specularite1892 pitch ore1896 minette1902 taconite1905 1835 C. U. Shepard Treat. Mineral. II. 102 Pharmacosiderite. (See Cube-Ore.) 1877 Min. Mag. 1 17 The pharmacosiderite occurs in the usual cubical forms. 1881 Amer. Naturalist 15 382 We may call attention to the presence in the State of covellite, cerargyrite..pharmacosiderite..and succinite. 1937 A. Muir tr. B. B. Polynov Cycle of Weathering iii. 100 Mineralogists have described a few uncommon natural iron arsenates (sporodite.., pharmacosiderite 2FeAsO4.Fe(OH)3, etc.), but these can hardly be regarded as of vadose origin. 2003 Jrnl. Russell Soc. 8 i. 1 Abundant green pharmacosiderite occurs in a goethite, cryptomelane and pyrolusite impregnated quartz vein, or veins, close to the head of Burdell Gill. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < |
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