29:
619:
334:. The original formula was extended form to show the presence of cyclic silicate groups and presence of silicon at the M4 site, according to the nomenclature of eudialyte group. As suggested by its name, it is the (ferrous) iron analogue of
593:"Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada - Mindat.org"
573:
Johnsen, O., Grice, J.D., and Gault, R.A., 2003: Ferrokentbrooksite, a new member of the eudialyte group from Mont Saint-Hilaire, Quebec, Canada. The
Canadian Mineralogist 41(1), 55–60
582:
Johnsen, O., Ferraris, G., Gault, R.A., Grice, D.G., Kampf, A.R., and Pekov, I.V., 2003. The nomenclature of eudialyte-group minerals. The
Canadian Mineralogist 41, 785–794
660:
338:. When compared to the latter, it is also chlorine-dominant instead of being fluorine-dominant. The original (holotype) material is also relatively enriched in
719:
724:
653:
116:
729:
646:
252:
28:
704:
699:
714:
130:
709:
689:
684:
679:
106:
694:
362:, Quebec, Canada – a site wealth in rare alkaline minerals. At the site ferrokentbrooksite coexists with
222:
508:
423:
339:
242:
232:
526:
359:
212:
179:
630:
626:
516:
262:
54:
618:
292:
512:
140:
673:
530:
407:
371:
335:
202:
152:
47:
387:
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167:
443:
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159:
455:
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439:
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411:
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467:
459:
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383:
363:
145:
521:
496:
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431:
375:
347:
549:
592:
427:
367:
343:
184:
a = 14.25, c = 30.03 (approximated); Z = 3
634:
478:
Iron in ferrokentbrooksite has coordination number 5.
422:
Beside fluorine, ferrokentbrooksite has admixtures of
279:
271:
261:
251:
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231:
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193:
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166:
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139:
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115:
105:
53:
43:
38:
21:
33:Ferrokentbrooksite, Amphibole Supergroup-166795
654:
8:
661:
647:
27:
520:
569:
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330:
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97:
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81:
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69:
65:
487:
18:
358:Ferrokentbrooksite was discovered in
7:
615:
613:
497:"IMA–CNMNC approved mineral symbols"
291:is a moderately rare mineral of the
550:http://www.mindat.org/min-7106.html
458:, and contains minor admixtures of
267:nω = 1.62, nε = 1.62 (approximated)
633:. You can help Knowledge (XXG) by
14:
617:
625:This article about a specific
16:Mineral of the eudialyte group
1:
548:Mindat, Ferrokentbrooksite,
275:REE (mainly Ce and Y), K, Sr
720:Minerals in space group 160
746:
725:Minerals described in 1999
612:
354:Occurrence and association
157:Ditrigonal pyramidal (3m)
26:
730:Silicate mineral stubs
501:Mineralogical Magazine
117:Strunz classification
227:Uneven to conchoidal
197:Reddish brown to red
522:10.1180/mgm.2021.43
513:2021MinM...85..291W
495:Warr, L.N. (2021).
424:rare earth elements
340:rare earth elements
131:Dana classification
705:Zirconium minerals
700:Manganese minerals
474:Notes on structure
418:Notes on chemistry
360:Mont Saint-Hilaire
289:Ferrokentbrooksite
22:Ferrokentbrooksite
715:Trigonal minerals
642:
641:
286:
285:
272:Common impurities
125:
737:
710:Niobium minerals
690:Calcium minerals
663:
656:
649:
627:silicate mineral
621:
614:
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603:
589:
583:
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492:
333:
263:Refractive index
207:Pseudo-octahedra
124:8/E.23-15 (8 ed)
123:
121:9.CO.10 (10 ed)
100:
60:
59:(repeating unit)
31:
19:
745:
744:
740:
739:
738:
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734:
685:Sodium minerals
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420:
356:
332:
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308:
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296:
295:, with formula
293:eudialyte group
158:
122:
101:(original form)
99:
95:
91:
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71:
67:
63:
58:
57:
34:
17:
12:
11:
5:
743:
741:
733:
732:
727:
722:
717:
712:
707:
702:
697:
692:
687:
682:
680:Cyclosilicates
672:
671:
666:
665:
658:
651:
643:
640:
639:
622:
609:
608:
584:
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553:
536:
507:(3): 291–320.
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189:Identification
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149:
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143:
141:Crystal system
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102:
61:
51:
50:
45:
41:
40:
36:
35:
32:
24:
23:
15:
13:
10:
9:
6:
4:
3:
2:
742:
731:
728:
726:
723:
721:
718:
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708:
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698:
696:
695:Iron minerals
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683:
681:
678:
677:
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664:
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652:
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632:
628:
623:
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579:
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568:
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541:
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481:
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461:
457:
453:
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445:
441:
437:
433:
429:
425:
417:
415:
413:
409:
408:rhodochrosite
405:
401:
397:
393:
389:
385:
381:
377:
373:
372:ancylite-(Ce)
369:
365:
361:
353:
351:
349:
345:
341:
337:
336:kentbrooksite
294:
290:
282:
278:
274:
270:
266:
264:
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256:
254:
250:
246:
244:
240:
236:
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230:
226:
224:
220:
216:
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206:
204:
203:Crystal habit
200:
196:
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187:
183:
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177:
174:
171:
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161:
156:
154:
153:Crystal class
150:
147:
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138:
134:
132:
128:
120:
118:
114:
110:
108:
104:
62:
56:
52:
49:
48:Cyclosilicate
46:
42:
37:
30:
25:
20:
635:expanding it
624:
600:. Retrieved
596:
587:
578:
504:
500:
490:
477:
421:
388:fluorapatite
357:
342:, including
288:
287:
172:
426:(including
380:catapleiite
257:Transparent
253:Diaphaneity
168:Space group
674:Categories
602:2016-03-11
597:Mindat.org
482:References
444:gadolinium
396:microcline
392:gonnardite
280:References
160:H-M symbol
107:IMA symbol
531:235729616
456:strontium
452:potassium
442:and some
440:neodymium
436:lanthanum
412:serandite
404:nepheline
400:natrolite
329:(Cl,F,OH)
180:Unit cell
96:(Cl,F,OH)
468:tantalum
460:titanium
448:samarium
384:fluorite
364:aegirine
237:Vitreous
223:Fracture
213:Cleavage
146:Trigonal
135:64.1.2.2
44:Category
509:Bibcode
464:hafnium
432:yttrium
376:calcite
348:yttrium
321:(O,OH,H
305:(Fe,Mn)
88:(O,OH,H
72:(Fe,Mn)
55:Formula
39:General
529:
466:, and
428:cerium
410:, and
368:albite
344:cerium
243:Streak
233:Luster
162:: (3m)
629:is a
527:S2CID
247:White
194:Color
631:stub
446:and
346:and
313:NbSi
111:Fktb
80:NbSi
517:doi
450:),
173:R3m
676::
595:.
556:^
539:^
525:.
515:.
505:85
503:.
499:.
470:.
462:,
454:,
438:,
434:,
430:,
414:.
406:,
402:,
398:,
394:,
390:,
386:,
382:,
378:,
374:,
370:,
366:,
350:.
325:O)
319:73
315:25
309:Zr
301:Ca
299:15
297:Na
217:No
92:O)
86:73
82:25
76:Zr
68:Ca
66:15
64:Na
662:e
655:t
648:v
637:.
605:.
533:.
519::
511::
331:2
327:3
323:2
317:O
311:3
307:3
303:6
98:2
94:3
90:2
84:O
78:3
74:3
70:6
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