单词 | pseudomalachite |
释义 | > as lemmaspseudomalachite pseudomalachite n. Brit. /ˌs(j)uːdə(ʊ)ˈmaləkʌɪt/ , U.S. /ˌsudoʊˈmæləˌkaɪt/ [after German Pseudomalachit ( J. F. L. Hausmann Handb. der Mineral. (1813) 1035)] Mineralogy a mineral resembling malachite that typically occurs as botryoidal masses and fibrous aggregates of dark green translucent crystals and is a secondary mineral found in oxidized zones of copper ore deposits.Pseudomalachite is a phosphate and hydroxide of copper, Cu5(PO4)2(OH)4. Crystal system: monoclinic.ΚΠ 1835 C. U. Shepard Treat. Mineral. II. ii. 122 Pseudo-Malachite. Hemi-prismatic, copper-barite. 1969 Science 22 Aug. 802/2 Pseudomalachite, covellite, anhydrite, rosasite, and parisite are secondary minerals of hydrothermal origin. 1994 Mineral. Mag. 58 449 Infrared spectroscopy is a rapid method of distinguishing between pseudomalachite and its polymorphs reichenbachite and ludjibaite. < as lemmas |
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