Lindgrenite Explained
| Lindgrenite |
| Category: | Molybdate mineral |
| Formula: | Cu3(MoO4)2(OH)2 |
| Imasymbol: | Lgr[1] |
| Strunz: | 7.GB.05 |
| Dana: | 48.3.1.1 |
| System: | Monoclinic |
| Class: | Prismatic (2/m)
(same H-M symbol) |
| Symmetry: | P21/n |
| Unit Cell: | a = 5.394, b = 14.023
c = 5.608 [Å]; β = 98.5°; Z = 2 |
| Color: | Green to yellowish green |
| Habit: | Tabular to platey crystals, may be acicular, massive or crust forming |
| Cleavage: | Perfect on and, poor on |
| Fracture: | Micaceous |
| Tenacity: | Brittle |
| Mohs: | 4.5 |
| Luster: | Greasey |
| Streak: | Pale green |
| Diaphaneity: | Transparent |
| Gravity: | 4.2 |
| Opticalprop: | Biaxial (-) |
| Refractive: | nα = 1.930 nβ = 2.002 nγ = 2.020 |
| Birefringence: | δ = 0.090 |
| 2V: | 71° (measured) |
| References: | [2] [3] [4] |
Lindgrenite is an uncommon copper molybdate mineral with formula: Cu3(MoO4)2(OH)2. It occurs as tabular to platey monoclinic green to yellow green crystals.
Discovery and occurrence
It was first described in 1935 for an occurrence in the Chuquicamata Mine, Antofagasta, Chile, and named for Swedish–American economic geologist Waldemar Lindgren (1860–1939) of the Massachusetts Institute of Technology.[2] [3]
Lindgrenite occurs in the oxidized portions of copper–molybdenum bearing sulfide ore deposits. Associated minerals include antlerite, molybdenite, powellite, brochantite, chrysocolla, iron oxides and quartz.[2]
Further reading
- The structure of Lindgrenite. Can Mineral . 1957 . 6 . 1 . 31–51 . L. D. . Calvert . W. H. . Barnes .
- 10.1016/j.jssc.2006.09.030 . Hydrothermal synthesis of lindgrenite with a hollow and prickly sphere-like architecture . 2007 . Xu . Jiasheng . Xue . Dongfeng . Journal of Solid State Chemistry . 180 . 1 . 119–126. 2007JSSCh.180..119X .
- 10.1021/ic061182m . Magnetic Structure and Magnetic Properties of Synthetic Lindgrenite, Cu3(OH)2(MoO4)2 . 2006 . Vilminot . Serge . André . Gilles . Richard-Plouet . Mireille . Bourée-Vigneron . Françoise . Kurmoo . Mohamedally . Inorganic Chemistry . 45 . 26 . 10938–46 . 17173452.
- 10.1127/0077-7757/2004/0180-0245 . Raman microscopy of the molybdate minerals koechlinite, iriginite and lindgrenite . 2004 . Frost . Ray L. . Duong . Loc . Weier . Matt . Neues Jahrbuch für Mineralogie - Abhandlungen . 180 . 3 . 245.
- 10.1180/minmag.1955.030.230.06 . On the Occurrence of the Rare Copper Molybdate, Lindgrenite, at Brandy Gill, Carrock Fell, Cumberland . 1955 . Kingsbury . Arthur W. G. . Mineralogical Magazine . 30 . 230 . 723–726 . 1955MinM...30..723K .
- 10.1016/S1005-9040(06)60189-X . Hydrothermal Synthesis and Thermal Stability of Natural Mineral Lindgrenite1 . 2006 . Bao . R . Kong . Z . Gu . M . Yue . B . Weng . L . He . H . Chemical Research in Chinese Universities . 22 . 6 . 679.
- The unit cell and space group of lindgrenite . Barnes. W. H..
- 10.2465/jmps.97.207 . Lindgrenite from the Sansei mine, Nara Prefecture, Japan . 2002 . Miyazaki . Iyo . Ohori . Shinji . Kishi . Shigetomo . Kobayashi . Shoichi . Kusachi . Isao . Journal of Mineralogical and Petrological Sciences . 97 . 4 . 207 . 2002JMPeS..97..207M . free .
Notes and References
- Warr. L.N.. 2021. IMA–CNMNC approved mineral symbols. Mineralogical Magazine. 85. 3. 291–320. 10.1180/mgm.2021.43. 2021MinM...85..291W. 235729616. free.
- http://rruff.info/doclib/hom/lindgrenite.pdf Lindgrenite in the Handbook of Mineralogy
- http://www.mindat.org/min-2405.html Lindgrenite on Mindat.org
- http://www.webmineral.com/data/Lindgrenite.shtml Lindgrenite data on Webmineral
