403:
808:
26:
621:
471:. The chemical analysis of beraunite often show small and irrational amounts of ferrous iron. The chain segments in Beraunite are one and two octahedral in length. Beraunite has two different types which are Zn-rich and Al-rich Beraunites, those two types have variations in data between those taken by Krsano in the X-ray
422:
Beraunite occurs as a secondary mineral in iron ore deposits and as an alteration product of primary phosphates minerals in granite pegmatites. It is found as an alteration product of triphylite at the Big Chief and
Hesnard mines,
589:
Alan F.Krivis and John M.Rabb. (1969). Cuprous
Complexes Formed with Isonicotinic Hydrazide. American Association for the Advancement of Science. 164, 1064–1065.
652:
610:
Paul B.Moore.(1969).Basic Ferric
Phosphates: A Crystallochemical Principle. Science. American Association for the Advancement of Science. 164, 1063–1064.
479:. The polyatomic complex of iron-oxygen octahedral face is sharing triplets corner to four other octahedral in the arrangement of atoms of the basic
601:
Johan P.R.DE. Villiers.(1975). The
Crystal Structure of Beraunite with Reference to Its Solid- Solution Behavior. American Mineralogist, 60,1103.
847:
306:
X = pale flesh-pink, yellow, blue-green; Y = pale flesh-pink, yellow, pale olive-green; Z = carnelian-red, reddish brown, olive-green.
103:
645:
428:
832:
208:
241:
842:
837:
638:
173:
Dull greenish to greenish brown when fresh, may be color banded; reddish brown to hyacinth-red, blood-red on exposure
367:
93:
183:
Tabular crystals common, may be in coarse radially fibrous aggregates, globular or discoidal, and in crusts
604:
Krsano.(2006). Mineralogy of phosphate accumulations in the Huber stock. Czech
Geological Society. 51, 1–2
424:
595:
Blanchard and
Denahan.(1968). Cacoxenite and Beraunite From Florida. American Mineralogist. 53,2099–2100.
35:
625:
402:
517:
476:
475:
experiment and those in the literature. Phosphate minerals have special characteristics about their
747:
231:
221:
535:
472:
198:
52:
483:
like dufrenite, rockbridgeite, and
Beraunite. This complex is linked together by the phosphate
757:
669:
661:
592:
Barron and Munn.(1967). The crystal structure of beraunite. Acta
Crystallographica.22,173–181.
468:
353:
337:
155:
25:
525:
269:
251:
188:
160:
a = 20.953(8) Å, b = 5.171(1) Å, c = 19.266(4) Å; β = 93.34°; Z = 4
59:
812:
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552:
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480:
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345:
113:
826:
707:
677:
539:
432:
291:
178:
125:
697:
687:
598:
Clifford
Frondel. (1949). The dufrenite problem, American Mineralogist,34, 513–540.
444:
574:
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371:
301:
143:
727:
692:
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236:
Olive-drab when fresh; yellow, brownish yellow on exposure
406:
Rosettes of colorless beraunite with lavender spheres of
394:
O. Aluminium and zinc may substitute in the structure.
226:
Vitreous, pearly on cleavages, resinous on fractures
779:
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352:deposits, and as an alteration product of primary
607:Nriagu and Moore.(1984).Phosphate Minerals.16.
646:
467:It occurs as fibrous greenish-black to brown
348:. Beraunite occurs as a secondary mineral in
336:phosphate mineral. It was first described by
8:
653:
639:
631:
447:in the United States. It is also found in
418:, Sweden. Overall size 5.5 × 4.5 × 3.8 cm.
529:
496:
256:2.8–3.08 (measured); 2.894 (calculated)
15:
316:Measured: 30° to 60°, Calculated: 66°
7:
506:"IMA–CNMNC approved mineral symbols"
14:
374:2/m. Beraunite's formula is Fe Fe
806:
619:
24:
429:Pennington County, South Dakota
193:On {100}, may be interpenetrant
30:Crystalline beraunite on green
366:Beraunite crystallizes in the
38:, US. Size: 3.4 × 3.3 × 2.8 cm
1:
864:
848:Minerals in space group 15
802:
368:monoclinic crystal system
23:
553:Handbook of Mineralogy
510:Mineralogical Magazine
419:
833:Iron(II,III) minerals
628:at Wikimedia Commons
405:
340:for an occurrence in
104:Strunz classification
36:Polk County, Arkansas
477:chemical composition
843:Monoclinic minerals
813:Minerals portal
531:10.1180/mgm.2021.43
522:2021MinM...85..291W
504:Warr, L.N. (2021).
414:, Leveäniemi Mine,
34:, Coon Creek Mine,
838:Phosphate minerals
662:Phosphate minerals
473:powder diffraction
420:
354:phosphate minerals
261:Optical properties
53:Phosphate minerals
820:
819:
758:Cryptocrystalline
624:Media related to
344:currently in the
338:August Breithaupt
327:
326:
138:
855:
811:
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270:Refractive index
252:Specific gravity
213:
132:
130:Prismatic (2/m)
65:
64:(repeating unit)
28:
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789:Santabarbaraite
775:
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586:
584:Further reading
581:
580:
575:Webmineral data
573:
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481:iron phosphates
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713:Metatorbernite
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703:Hydroxyapatite
700:
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615:External links
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516:(3): 291–320.
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165:Identification
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114:Crystal system
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748:Wycheproofite
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708:Lithiophilite
706:
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678:Allanpringite
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292:Birefringence
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126:Crystal class
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67:
61:
57:
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51:
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37:
33:
27:
22:
17:
804:
698:Fluorapatite
688:Brazilianite
682:
618:
570:
559:
548:
513:
509:
499:
466:
445:Pennsylvania
421:
365:
329:
328:
148:
771:Whitlockite
670:Crystalline
416:Svappavaara
410:on massive
372:point group
302:Pleochroism
264:Biaxial (+)
246:Translucent
242:Diaphaneity
144:Space group
827:Categories
728:Taranakite
693:Eosphorite
564:Mindat.org
491:References
485:tetrahedra
455:, and the
441:New Jersey
398:Occurrence
361:pegmatites
321:References
209:Mohs scale
135:H-M symbol
119:Monoclinic
94:IMA symbol
32:kidwellite
794:Scorodite
781:Amorphous
766:Turquoise
738:Wavellite
733:Variscite
683:Beraunite
626:Beraunite
540:235729616
463:Structure
408:strengite
330:Beraunite
296:δ = 0.040
282:= 1.786 n
278:= 1.775 n
156:Unit cell
19:Beraunite
743:Xenotime
723:Struvite
718:Monazite
437:Arkansas
425:Keystone
412:hematite
350:iron ore
312:2V angle
212:hardness
199:Cleavage
189:Twinning
49:Category
518:Bibcode
469:nodules
453:Germany
449:Ireland
358:granite
286:= 1.815
108:8.DC.27
60:Formula
44:General
538:
342:Beraun
332:is an
232:Streak
222:Luster
133:(same
536:S2CID
435:, in
370:with
170:Color
68:Fe Fe
443:and
378:(OH)
334:iron
149:C2/c
72:(OH)
526:doi
390:·4H
382:(PO
356:in
216:3–4
98:Bru
84:·4H
76:(PO
829::
534:.
524:.
514:85
512:.
508:.
487:.
459:.
451:,
439:,
431:,
427:,
363:.
654:e
647:t
640:v
542:.
528::
520::
392:2
388:4
386:)
384:4
380:5
376:5
284:γ
280:β
276:α
274:n
137:)
88:O
86:2
82:4
80:)
78:4
74:5
70:5
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