29:
350:
431:
thermal decomposition by calculating the different levels of dehydration, as zeunerite is transformed into metazeunerite. Metazeunerite was shown to be an important solubility limiting phase controlling uranium migration in the soils of the UK's only, and now abandoned, uranium mine, South Terras, located near
430:
Metazeunerite is an uncommon radioactive secondary mineral found in "arsenic bearing hydrothermal uranium deposits" across the world. This widespread mineral occurs specifically in Europe, western North
America, Australia, Brazil and Chile, Namibia, and Kazakhstan. It is currently studied through
421:
Its crystal system is tetragonal and its crystal class is 4/m, which is also called the tetragonal-dipyramidal class because it only has a vertical four-fold rotation axis that is perpendicular to the symmetry plane. When looking at a thin section, metzeunerite is anisotropic, meaning that it has
422:
pleochroism. When a mineral is anisotropic, one can see whether it is uniaxial or biaxial, depending on how fast the rays of light are moving through the mineral. This mineral is uniaxial negative due to the ordinary ray being slower than the extraordinary ray.
632:
631:
Corkhill, Claire L.; Crean, Daniel E.; Bailey, Daniel J.; Makepeace, Carmen; Stennett, Martin C.; Tappero, Ryan; Grolimund, Daniel; Hyatt, Neil C. (2017-12-14).
681:
Dana's System of
Mineralogy, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. (Seventh Edition)"
717:
558:
Klein, C., and Dutrow, B. (2007) The 23rd
Edition of the Manual of Mineral Science (23rd edition), 194 p. John Wiley & Sons, Inc.
549:
Roberts, W., Campbell, T., and Rapp, G. (1990) Encyclopedia of
Minerals (Second Edition), 558 p. Van Nordstrand Reinhold, New York.
109:
236:
707:
269:
712:
702:
591:
567:
500:
592:"Thermal Decomposition of Metazeunerite—a High-resolution Thermogravimetric and Hot-stage Raman Spectroscopic Study"
697:
99:
633:"Multi-scale investigation of uranium attenuation by arsenic at an abandoned uranium mine, South Terras"
432:
226:
216:
465:
259:
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614:
483:
206:
58:
538:
657:
161:
28:
578:
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297:
279:
196:
65:
469:
119:
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Tabular rectangular crystals with two pinacoid faces; foliated or micaceous aggregates
691:
487:
406:
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186:
131:
38:
618:
34:
511:
395:
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149:
652:
610:
335:
140:
124:
661:
399:
410:
478:
453:
349:
42:
527:
394:
O. The origin of this mineral is almost always from the natural
568:"Optical Properties of Minerals." University of North Dakota
374:
is an arsenate mineral with a chemical formula of Cu(UO
683:
John Wiley and Sons, Inc., New York, pp. 993–994.
590:
Frost, Ray L; Weier, Matt L; Adebajo, Moses O (2004),
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579:"Metazeunerite." Mineral Data Publishing, 2005
679:Palache, P.; Berman H.; Frondel, C. (1960). "
8:
27:
651:
477:
523:
521:
519:
444:
409:, who worked at the School of Mines in
166:a = 7.1094 Å, c = 17.416 Å;
18:
512:Metazeunerite Mineral Data Webmineral
7:
454:"IMA–CNMNC approved mineral symbols"
211:Perfect on {001}; distinct on {010}
33:Metazeunerite crystals to 7 mm on
14:
413:and its lowered hydration state.
348:
405:It is named for civil engineer
1:
734:
718:Minerals in space group 85
274:Transparent to translucent
653:10.1038/s41529-017-0019-9
640:npj Materials Degradation
611:10.1016/j.tca.2004.02.006
181:Varies from pale to green
26:
528:Metazeunerite on Mindat
458:Mineralogical Magazine
433:St Stephen-in-Brannel
345:Other characteristics
110:Strunz classification
708:Uranium(VI) minerals
201:Merohedrally twinned
713:Tetragonal minerals
703:Copper(II) minerals
479:10.1180/mgm.2021.43
470:2021MinM...85..291W
452:Warr, L.N. (2021).
599:Thermochimica Acta
539:Amethyst Galleries
289:Optical properties
136:Dipyramidal (4/m)
59:Phosphate minerals
698:Arsenate minerals
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605:(1–2): 119–129,
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407:Gustav A. Zeuner
358:Relief: moderate
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340:Soluble in acids
298:Refractive index
280:Specific gravity
254:Vitreous to dull
241:
138:
71:
70:(repeating unit)
31:
19:
16:Arsenate mineral
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501:Mineralienatlas
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306:= 1.643–1.651 n
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168:Z = 2
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464:(3): 291–320.
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173:Identification
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120:Crystal system
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372:Metazeunerite
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316:Birefringence
313:
310:= 1.623–1.635
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187:Crystal habit
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132:Crystal class
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39:Erongo Region
36:
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25:
22:Metazeunerite
20:
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673:Bibliography
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292:Uniaxial (−)
154:
35:smoky quartz
398:process of
396:dehydration
354:Radioactive
326:Pleochroism
270:Diaphaneity
150:Space group
692:Categories
439:References
426:Occurrence
417:Properties
363:References
336:Solubility
264:Pale green
237:Mohs scale
141:H-M symbol
125:Tetragonal
100:IMA symbol
662:2397-2106
488:235729616
400:zeunerite
162:Unit cell
619:96215715
411:Freiberg
240:hardness
227:Tenacity
217:Fracture
207:Cleavage
197:Twinning
55:Category
466:Bibcode
231:Brittle
114:8.EB.10
66:Formula
50:General
43:Namibia
660:
617:
486:
260:Streak
250:Luster
221:Uneven
139:(same
646:(1).
636:(PDF)
615:S2CID
595:(PDF)
484:S2CID
244:2–2.5
178:Color
74:Cu(UO
658:ISSN
382:(AsO
330:Weak
320:.020
284:3.87
155:P4/n
104:Mzeu
82:(AsO
648:doi
607:doi
603:419
474:doi
390:·8H
90:·8H
694::
656:.
642:.
638:.
613:,
601:,
597:,
518:^
482:.
472:.
462:85
460:.
456:.
435:.
402:.
41:,
37:,
664:.
650::
644:1
609::
490:.
476::
468::
392:2
388:2
386:)
384:4
380:2
378:)
376:2
356:,
308:ε
304:w
302:n
143:)
94:O
92:2
88:2
86:)
84:4
80:2
78:)
76:2
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