29:
671:
in each tetrahedron form links to other tetrahedra in the sheet, and the fourth oxygen, the apical oxygen, points away from the sheet. The apical oxygens of one tetahedral sheet face the apical oxygens of the other tetrahedral sheet, forming octahedral sites between the sheets, and this is the
349:
in a paper published in the
American Mineralogist in 1979, but it had already been determined to be a smectite as early as 1938, and this was confirmed in another article in the American Mineralogist in 1966. Both nickel-bearing talc and nickel dominant smectite occur at the
849:. In 1966 the material was shown to be identical with pimelite. Pimelite from the Trotter Shaft occurs as localized, patchy, thin crusts and dense 1 to 6 cm masses as an alteration product of
702:
Pimelite does not form visible crystals. It is fine-grained or fibrous, with the apple green color typical of nickel compounds. It is translucent, with a white
679:, producing trioctahedral layers, where each O or OH ion is surrounded by 3 divalent cations. Alternatively the octahedral sites may be 2/3 occupied by
355:
34:
319:
94:
686:, producing dioctahedral layers, where each O or OH ion is surrounded by 2 trivalent cations. There is one formula unit per
625:
181:
795:
214:
1072:
1139:
334:(assuming any exists). Nevertheless, a considerable number of papers have been written, verifying that pimelite is a
629:
104:
1134:
1129:
641:
621:
119:
819:
351:
331:
822:
is
Kosemutz, near Frankenstein, Silesia, Poland, and it has also been found in New Jersey, US. A nickel
759:
755:
330:(which is also discredited). This was a mass discreditation, and not based on any re-examination of the
171:
830:
857:
799:
707:
703:
680:
673:
204:
194:
536:
727:
323:
161:
568:
370:
group, trioctahedral subgroup. "Smectite" is the name of a group of minerals, not the name of a
648:, the basic structural element is a triple layer, called a t-o-t layer, where "t" stands for a
841:, for Major de Saules, manager of the Trotter Mine at Franklin, but that name is now used for
853:
811:
771:
244:
224:
58:
1110:
690:(Z = 1), and the unit cell parameters are a = 5.256 Å and c = 14.822 Å. When treated with
645:
371:
315:
51:
923:
598:
114:
1123:
834:
763:
719:
601:
367:
151:
322:(IMA) in 2006, in an article which suggests that "pimelite" specimens are probably
133:
861:
775:
743:
649:
268:
873:
846:
739:
653:
605:
499:
278:
1076:
905:
826:
723:
687:
664:
467:
381:
865:
823:
779:
609:
435:
339:
327:
1097:
28:
977:
869:
850:
815:
807:
803:
767:
691:
672:
octahedral "o" layer. The octahedral sites may be fully occupied by
668:
335:
294:
342:. It is always possible to redefine a mineral wrongly discredited.
783:
37:, Lower Silesia, Poland. Specimen size 2.3 cm (0.9 in)
842:
346:
955:
Gaines et al (1997) Dana's New
Mineralogy Eighth Edition. Wiley
604:. Pimelite apparently constitutes part of the mixtures called
833:, in 1889, but it has not been reported from the neighbouring
683:
676:
632:) from the Greek word for fat, in allusion to the appearance.
742:, pale green, and colorless to light yellow green. It is not
1041:
612:, and it could form a series with stevensite or saponite.
16:
Nickel-rich smectite deprecated as mineral species in 2006
1058:
345:
The mineral was erroneously assumed to be a nickel-rich
1111:
http://franklin-sterlinghill.com/dunn/ch18/pimelite.stm
1059:"IMA Mineral List with Database of Mineral Properties"
1032:
924:
http://www.wolframalpha.com/entities/minerals/pimelite
366:
According to the literature pimelite belongs to the
302:
287:
277:
267:
243:
233:
223:
213:
203:
193:
180:
170:
160:
150:
142:
132:
127:
113:
103:
93:
57:
47:
42:
21:
644:, but the crystal class is unknown. As with all
991:Burke (2007) Canadian Mineralogist: 44-6: 1557
754:Pimelite breaks with an uneven to conchoidal
8:
273:Pale green, colourless to light yellow green
860:, low-temperature mineral, associated with
239:Can appear isotropic due to fine grain size
27:
1023:Faust (1966) American Mineralogist 51:279
973:
971:
969:
967:
965:
963:
961:
901:
899:
897:
895:
893:
891:
889:
659:
656:sheet. The tetrahedral sheets comprise
585:
581:
577:
573:
557:
553:
549:
545:
541:
529:
525:
521:
517:
513:
509:
505:
488:
484:
480:
476:
472:
456:
452:
448:
444:
440:
424:
420:
416:
412:
403:
399:
395:
391:
387:
81:
77:
73:
69:
951:
885:
320:International Mineralogical Association
146:Bright green, apple green, yellow-green
1053:
1051:
1049:
1047:
1019:
1017:
1015:
987:
985:
949:
947:
945:
943:
941:
939:
937:
935:
933:
931:
663:tetrahedra, linked together in nearly
18:
7:
1073:"The Mineralogical Record – Library"
919:
917:
915:
913:
291:Neither radioactive nor fluorescent
620:Pimelite was discovered in 1788 by
14:
829:mineral was first described from
726:due to its fine grain size. The
630:de:Dietrich Ludwig Gustav Karsten
356:Szklary, Ząbkowice Śląskie County
774:is 2.23 to 2.98. It is neither
1009:Economic Geology (2004) 99:1197
626:Dietrich Ludwig Gustav Karsten
1:
1000:Economic Geology (1949) 44:13
796:lateritic nickel ore deposits
766:2 to 2.5, similar to that of
694:the cell expands to 17.35 Å.
652:sheet and "o" stands for an
597:Smectite group minerals are
837:. It was originally called
409:pimelite (IMA discredited)
1156:
502:(IMA questionable status)
384:(IMA questionable status)
156:Fine-grained, also fibrous
624:, and renamed in 1800 by
358:, Lower Silesia, Poland.
293:Expands to 17.35 A using
26:
806:, frequently mixed with
642:hexagonal crystal system
622:Martin Heinrich Klaproth
326:(which is approved), or
782:. It is decomposed by
794:Pimelite is found in
667:rings. Three of the
314:was discredited as a
288:Other characteristics
95:Strunz classification
831:Franklin, New Jersey
176:Uneven to conchoidal
762:. It is soft with
750:Physical properties
283:Decomposed by acids
123:Unknown space group
105:Dana classification
1140:Hexagonal minerals
758:, but it shows no
728:refractive indices
722:but it can appear
714:Optical properties
640:It belongs to the
377:Subgroup members:
234:Optical properties
309:
308:
1147:
1114:
1108:
1102:
1101:
1094:
1088:
1087:
1085:
1084:
1075:. Archived from
1069:
1063:
1062:
1055:
1042:
1039:
1033:
1030:
1024:
1021:
1010:
1007:
1001:
998:
992:
989:
980:
975:
956:
953:
926:
921:
908:
903:
772:specific gravity
662:
593:
565:
533:
496:
464:
432:
406:
245:Refractive index
225:Specific gravity
186:
99:8/H.09-65 (8 ed)
89:
64:
63:(repeating unit)
31:
19:
1155:
1154:
1150:
1149:
1148:
1146:
1145:
1144:
1135:Nickel minerals
1130:Phyllosilicates
1120:
1119:
1118:
1117:
1109:
1105:
1096:
1095:
1091:
1082:
1080:
1071:
1070:
1066:
1057:
1056:
1045:
1040:
1036:
1031:
1027:
1022:
1013:
1008:
1004:
999:
995:
990:
983:
976:
959:
954:
929:
922:
911:
906:Webmineral data
904:
887:
882:
792:
752:
738:= 1.615. It is
737:
733:
716:
700:
661:
657:
646:phyllosilicates
638:
618:
591:
587:
583:
579:
575:
571:
563:
559:
555:
551:
547:
543:
539:
531:
527:
523:
519:
515:
511:
507:
503:
494:
490:
486:
482:
478:
474:
470:
462:
458:
454:
450:
446:
442:
438:
430:
426:
422:
418:
414:
410:
405:
401:
397:
393:
389:
385:
372:mineral species
364:
316:mineral species
297:
292:
262:
256:
254:
238:
184:
122:
87:
83:
79:
75:
71:
67:
62:
61:
52:Phyllosilicates
38:
17:
12:
11:
5:
1153:
1151:
1143:
1142:
1137:
1132:
1122:
1121:
1116:
1115:
1103:
1089:
1064:
1043:
1034:
1025:
1011:
1002:
993:
981:
957:
927:
909:
884:
883:
881:
878:
791:
788:
751:
748:
735:
731:
715:
712:
699:
696:
637:
634:
617:
614:
599:phyllosilicate
595:
594:
589:
566:
561:
534:
497:
492:
465:
460:
433:
428:
407:
363:
360:
307:
306:
304:
300:
299:
289:
285:
284:
281:
275:
274:
271:
265:
264:
260:
252:
247:
241:
240:
235:
231:
230:
227:
221:
220:
217:
211:
210:
207:
201:
200:
197:
191:
190:
187:
178:
177:
174:
168:
167:
164:
158:
157:
154:
148:
147:
144:
140:
139:
136:
130:
129:
128:Identification
125:
124:
117:
115:Crystal system
111:
110:
107:
101:
100:
97:
91:
90:
85:
65:
55:
54:
49:
45:
44:
40:
39:
33:Pimelite from
32:
24:
23:
15:
13:
10:
9:
6:
4:
3:
2:
1152:
1141:
1138:
1136:
1133:
1131:
1128:
1127:
1125:
1112:
1107:
1104:
1099:
1098:"Desaulesite"
1093:
1090:
1079:on 2011-07-27
1078:
1074:
1068:
1065:
1060:
1054:
1052:
1050:
1048:
1044:
1038:
1035:
1029:
1026:
1020:
1018:
1016:
1012:
1006:
1003:
997:
994:
988:
986:
982:
979:
974:
972:
970:
968:
966:
964:
962:
958:
952:
950:
948:
946:
944:
942:
940:
938:
936:
934:
932:
928:
925:
920:
918:
916:
914:
910:
907:
902:
900:
898:
896:
894:
892:
890:
886:
879:
877:
875:
871:
867:
863:
859:
855:
852:
848:
844:
840:
836:
835:Sterling Hill
832:
828:
825:
821:
820:type locality
817:
813:
809:
805:
801:
800:serpentinites
797:
789:
787:
785:
781:
777:
773:
769:
765:
764:Mohs hardness
761:
757:
749:
747:
745:
741:
734:= 1.592 and N
729:
725:
721:
713:
711:
709:
705:
697:
695:
693:
689:
685:
682:
678:
675:
670:
666:
655:
651:
647:
643:
635:
633:
631:
627:
623:
615:
613:
611:
607:
603:
602:clay minerals
600:
570:
567:
538:
535:
501:
498:
469:
466:
437:
434:
408:
383:
380:
379:
378:
375:
373:
369:
362:Mineral group
361:
359:
357:
353:
352:type locality
348:
343:
341:
337:
333:
332:type material
329:
325:
321:
317:
313:
305:
301:
296:
290:
286:
282:
280:
276:
272:
270:
266:
259:
251:
248:
246:
242:
236:
232:
228:
226:
222:
218:
216:
212:
208:
206:
202:
198:
196:
192:
188:
183:
179:
175:
173:
169:
165:
163:
159:
155:
153:
152:Crystal habit
149:
145:
141:
137:
135:
131:
126:
121:
118:
116:
112:
108:
106:
102:
98:
96:
92:
66:
60:
56:
53:
50:
46:
41:
36:
30:
25:
20:
1106:
1092:
1081:. Retrieved
1077:the original
1067:
1037:
1028:
1005:
996:
838:
814:minerals or
793:
753:
717:
701:
639:
619:
596:
537:yakhontovite
376:
365:
344:
311:
310:
257:
249:
237:Biaxial (−)
134:Formula mass
862:annabergite
839:desaulesite
776:radioactive
744:fluorescent
720:biaxial (−)
706:and a waxy
650:tetrahedral
324:willemseite
298:Nonmagnetic
269:Pleochroism
219:Translucent
215:Diaphaneity
138:554.5 g/mol
1124:Categories
1083:2011-02-22
978:Mindat.org
880:References
874:sphalerite
856:. It is a
847:garnierite
812:serpentine
790:Occurrence
770:, and its
740:pleochroic
698:Appearance
654:octahedral
606:garnierite
569:zincsilite
544:(Cu,Fe,Mg)
500:stevensite
338:-dominant
303:References
279:Solubility
182:Mohs scale
858:secondary
854:arsenides
827:hydroxide
724:isotropic
688:unit cell
681:trivalent
665:hexagonal
636:Structure
616:Discovery
540:(Ca,Na,K)
528:·n(H
468:sauconite
382:hectorite
229:2.23–2.98
120:Hexagonal
109:71.3.1b.5
866:fluorite
824:silicate
780:magnetic
760:cleavage
756:fracture
674:divalent
658:(Si,Al)O
610:noumeite
588:·4H
560:·3H
491:·4H
459:·4H
436:saponite
427:·4H
368:smectite
340:smectite
328:kerolite
312:Pimelite
255:= 1.592
185:hardness
172:Fracture
162:Cleavage
84:·4H
48:Category
22:Pimelite
804:dunites
684:cations
677:cations
669:oxygens
512:(Mg,Fe)
479:(Si,Al)
447:(Si,Al)
443:(Mg,Fe)
439:(Ca,Na)
390:(Mg,Li)
318:by the
263:= 1.615
189:2.0–2.5
59:Formula
43:General
35:Szklary
870:baryte
851:nickel
845:-rich
818:. The
816:quartz
810:-rich
808:nickel
798:above
768:gypsum
718:It is
708:luster
704:streak
692:glycol
336:nickel
295:glycol
205:Streak
195:Luster
784:acids
730:are N
209:White
143:Color
1113:>
872:and
843:zinc
778:nor
584:(OH)
556:(OH)
524:(OH)
510:0.33
508:,Na)
487:(OH)
455:(OH)
423:(OH)
402:(OH)
347:talc
199:Waxy
166:None
80:(OH)
802:or
608:or
542:0.2
506:0.5
504:(Ca
473:0.3
441:0.3
388:0.3
1126::
1046:^
1014:^
984:^
960:^
930:^
912:^
888:^
876:.
868:,
864:,
786:.
746:.
710:.
582:10
576:Si
572:Zn
554:10
548:Si
532:O)
522:10
516:Si
485:10
475:Zn
471:Na
453:10
421:10
415:Si
411:Ni
400:10
394:Si
386:Na
374:.
354:,
78:10
72:Si
68:Ni
1100:.
1086:.
1061:.
736:y
732:x
660:4
628:(
592:O
590:2
586:2
580:O
578:4
574:3
564:O
562:2
558:2
552:O
550:4
546:2
530:2
526:2
520:O
518:4
514:3
495:O
493:2
489:2
483:O
481:4
477:3
463:O
461:2
457:2
451:O
449:4
445:3
431:O
429:2
425:2
419:O
417:4
413:3
404:2
398:O
396:4
392:3
261:y
258:N
253:x
250:N
88:O
86:2
82:2
76:O
74:4
70:3
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