1148:
26:
558:
are the same, and differences in properties can be traced to the iron/manganese percentage. Of the two, childrenite is denser. Furthermore, eosphorite is normally pink in color, which can be attributed to manganese.
666:
693:
656:
1197:
117:
686:
1172:
1192:
214:
247:
1187:
1182:
679:
1177:
624:
107:
204:
554:. The chemical composition of eosphorite only differs by being rich in manganese and not in iron. The
589:
496:
1102:
327:
237:
227:
607:
464:
194:
41:
1106:
890:
759:
736:
661:
555:
362:
169:
1096:
943:
850:
597:
515:
448:
393:
366:
275:
257:
48:
1152:
1116:
1046:
468:
593:
1112:
861:
835:
830:
713:
547:
535:
444:
127:
1166:
1036:
1006:
981:
908:
769:
754:
611:
527:
452:
297:
139:
986:
951:
913:
507:
484:
132:
1132:
1031:
1016:
961:
928:
855:
794:
784:
749:
460:
456:
307:
157:
646:
1122:
1064:
1054:
1001:
971:
933:
903:
871:
820:
804:
551:
531:
476:
381:
337:
148:
1126:
1086:
1026:
1011:
996:
991:
976:
966:
918:
866:
845:
789:
726:
721:
702:
377:
373:
1090:
1059:
1021:
956:
923:
840:
825:
744:
523:
480:
389:
359:
317:
602:
577:
25:
1080:
799:
705:
503:
500:
472:
635:
671:
511:
510:. This secondary mineral was first found in the George and Charlotte
385:
189:
Yellowish brown, brown, clove-brown; colorless in transmitted light.
876:
519:
369:
675:
1073:
1045:
942:
889:
813:
777:
768:
735:
712:
522:. Its formation is probably from the alteration of
346:
336:
326:
316:
306:
296:
274:
266:
256:
246:
236:
226:
213:
203:
193:
185:
180:
168:
156:
138:
126:
116:
106:
47:
37:
32:
18:
687:
8:
475:, and is brown or yellow in color. It has a
774:
694:
680:
672:
601:
534:. Childrenite is also found in some ore
568:
495:Childrenite was discovered in 1823 by
15:
322:Measured: 40° to 45°, calculated: 50°
7:
578:"IMA–CNMNC approved mineral symbols"
174:a = 10.41 Å, b = 13.42 Å,
14:
499:(1777–1852), who was a prominent
1146:
209:Irregular/uneven, sub-conchoidal
176:c = 6.92 Å; Z = 8
24:
1:
542:Relationship to other species
455:of 4.5 to 5. It is usually
1214:
1198:Minerals in space group 41
1142:
23:
252:Transparent, translucent
199:Poor/indistinct on {100}
1173:Manganese(II) minerals
667:University of Delaware
582:Mineralogical Magazine
1193:Orthorhombic minerals
491:History and formation
447:of 229.83 g/mol. Its
118:Strunz classification
546:Childrenite forms a
497:John George Children
451:is 3.2 and it has a
1153:Minerals portal
603:10.1180/mgm.2021.43
594:2021MinM...85..291W
576:Warr, L.N. (2021).
1188:Phosphate minerals
1183:Aluminium minerals
288:= 1.662 – 16.830 n
267:Optical properties
232:Vitreous, resinous
42:Phosphate minerals
1178:Iron(II) minerals
1160:
1159:
885:
884:
760:Manganoan calcite
657:Mineral Galleries
526:phosphates like
463:, with imperfect
363:phosphate mineral
353:
352:
342:Soluble in acids.
302:δ = 0.027 – 0.042
284:= 1.644 – 1.649 n
152:
1205:
1151:
1150:
1149:
1097:Manganese nodule
851:Manganotantalite
775:
696:
689:
682:
673:
649:
644:
638:
633:
627:
622:
616:
615:
605:
573:
487:crystal system.
449:specific gravity
445:molecular weight
442:
440:
439:
431:
430:
422:
421:
413:
412:
405:
404:
394:chemical formula
276:Refractive index
258:Specific gravity
219:
146:
144:Pyramidal (mm2)
102:
100:
99:
91:
90:
82:
81:
73:
72:
65:
64:
54:
53:(repeating unit)
28:
16:
1213:
1212:
1208:
1207:
1206:
1204:
1203:
1202:
1163:
1162:
1161:
1156:
1147:
1145:
1138:
1069:
1041:
938:
881:
809:
764:
731:
708:
700:
662:Athena Minerals
653:
652:
645:
641:
634:
630:
625:Mineralienatlas
623:
619:
575:
574:
570:
565:
544:
493:
469:vitreous lustre
438:
435:
434:
433:
429:
426:
425:
424:
420:
417:
416:
415:
411:
409:
408:
407:
403:
401:
400:
399:
397:
332:r > v strong
292:= 1.671 – 1.691
291:
287:
283:
217:
175:
145:
98:
95:
94:
93:
89:
86:
85:
84:
80:
77:
76:
75:
71:
69:
68:
67:
63:
61:
60:
59:
57:
52:
51:
12:
11:
5:
1211:
1209:
1201:
1200:
1195:
1190:
1185:
1180:
1175:
1165:
1164:
1158:
1157:
1143:
1140:
1139:
1137:
1136:
1130:
1120:
1113:Zincobotryogen
1110:
1100:
1094:
1084:
1083:(borosilicate)
1077:
1075:
1071:
1070:
1068:
1067:
1062:
1057:
1051:
1049:
1043:
1042:
1040:
1039:
1034:
1029:
1024:
1019:
1014:
1009:
1004:
999:
994:
989:
984:
979:
974:
969:
964:
959:
954:
948:
946:
940:
939:
937:
936:
931:
926:
921:
916:
911:
906:
901:
895:
893:
887:
886:
883:
882:
880:
879:
874:
869:
864:
859:
858:(calvonigrite)
853:
848:
843:
838:
836:Ferrotantalite
833:
831:Ferrocolumbite
828:
823:
817:
815:
811:
810:
808:
807:
802:
797:
792:
787:
781:
779:
772:
766:
765:
763:
762:
757:
752:
747:
741:
739:
733:
732:
730:
729:
724:
718:
716:
710:
709:
701:
699:
698:
691:
684:
676:
670:
669:
664:
659:
651:
650:
639:
628:
617:
588:(3): 291–320.
567:
566:
564:
561:
548:solid solution
543:
540:
492:
489:
436:
427:
418:
410:
402:
351:
350:
348:
344:
343:
340:
334:
333:
330:
324:
323:
320:
314:
313:
310:
304:
303:
300:
294:
293:
289:
285:
281:
278:
272:
271:
268:
264:
263:
260:
254:
253:
250:
244:
243:
240:
234:
233:
230:
224:
223:
220:
211:
210:
207:
201:
200:
197:
191:
190:
187:
183:
182:
181:Identification
178:
177:
172:
166:
165:
160:
154:
153:
142:
136:
135:
130:
128:Crystal system
124:
123:
120:
114:
113:
110:
104:
103:
96:
87:
78:
70:
62:
55:
45:
44:
39:
35:
34:
30:
29:
21:
20:
13:
10:
9:
6:
4:
3:
2:
1210:
1199:
1196:
1194:
1191:
1189:
1186:
1184:
1181:
1179:
1176:
1174:
1171:
1170:
1168:
1155:
1154:
1141:
1134:
1131:
1128:
1124:
1121:
1118:
1114:
1111:
1108:
1104:
1101:
1098:
1095:
1092:
1088:
1085:
1082:
1079:
1078:
1076:
1072:
1066:
1063:
1061:
1058:
1056:
1053:
1052:
1050:
1048:
1044:
1038:
1037:Zircophyllite
1035:
1033:
1030:
1028:
1025:
1023:
1020:
1018:
1015:
1013:
1010:
1008:
1007:Pyroxferroite
1005:
1003:
1000:
998:
995:
993:
990:
988:
985:
983:
982:Glaucochroite
980:
978:
975:
973:
970:
968:
965:
963:
960:
958:
955:
953:
950:
949:
947:
945:
941:
935:
932:
930:
927:
925:
922:
920:
917:
915:
912:
910:
909:Lithiophilite
907:
905:
902:
900:
897:
896:
894:
892:
888:
878:
875:
873:
870:
868:
865:
863:
860:
857:
854:
852:
849:
847:
844:
842:
839:
837:
834:
832:
829:
827:
824:
822:
819:
818:
816:
812:
806:
803:
801:
798:
796:
793:
791:
788:
786:
783:
782:
780:
776:
773:
771:
767:
761:
758:
756:
755:Rhodochrosite
753:
751:
748:
746:
743:
742:
740:
738:
734:
728:
725:
723:
720:
719:
717:
715:
711:
707:
704:
697:
692:
690:
685:
683:
678:
677:
674:
668:
665:
663:
660:
658:
655:
654:
648:
643:
640:
637:
632:
629:
626:
621:
618:
613:
609:
604:
599:
595:
591:
587:
583:
579:
572:
569:
562:
560:
557:
553:
549:
541:
539:
537:
533:
529:
528:lithiophilite
525:
521:
517:
513:
509:
505:
502:
498:
490:
488:
486:
482:
478:
474:
471:with a white
470:
466:
462:
458:
454:
453:Mohs hardness
450:
446:
443:and it has a
395:
391:
387:
383:
379:
375:
371:
368:
364:
361:
357:
349:
345:
341:
339:
335:
331:
329:
325:
321:
319:
315:
311:
309:
305:
301:
299:
298:Birefringence
295:
279:
277:
273:
269:
265:
261:
259:
255:
251:
249:
245:
241:
239:
235:
231:
229:
225:
221:
216:
212:
208:
206:
202:
198:
196:
192:
188:
184:
179:
173:
171:
167:
164:
161:
159:
155:
150:
143:
141:
140:Crystal class
137:
134:
131:
129:
125:
121:
119:
115:
111:
109:
105:
56:
50:
46:
43:
40:
36:
31:
27:
22:
17:
1144:
987:Jeffersonite
952:Babingtonite
914:Natrophilite
898:
642:
631:
620:
585:
581:
571:
550:series with
545:
508:mineralogist
494:
485:orthorhombic
355:
354:
162:
133:Orthorhombic
1135:(tungstate)
1032:Zakharovite
1017:Spessartine
962:Brownleeite
929:Triploidite
899:Childrenite
862:Romanèchite
856:Psilomelane
795:Manganosite
785:Hausmannite
750:Kutnohorite
467:. It has a
461:fluorescent
457:translucent
356:Childrenite
308:Pleochroism
270:Biaxial (−)
248:Diaphaneity
158:Space group
19:Childrenite
1167:Categories
1123:Wolframite
1065:Rambergite
1055:Alabandite
1002:Piemontite
972:Chloritoid
934:Zanazziite
904:Graftonite
891:Phosphates
872:Todorokite
821:Birnessite
805:Pyrolusite
737:Carbonates
647:WebMineral
563:References
556:structures
552:eosphorite
532:triphylite
477:conchoidal
382:phosphorus
358:is a rare
347:References
338:Solubility
328:Dispersion
215:Mohs scale
149:H-M symbol
108:IMA symbol
1133:Hübnerite
1127:tungstate
1107:sulfosalt
1103:Samsonite
1099:(various)
1087:Geigerite
1027:Tephroite
1012:Rhodonite
997:Ottrelite
992:Knebelite
977:Eudialyte
967:Calderite
944:Silicates
919:Purpurite
867:Tantalite
846:Jacobsite
790:Manganite
727:Tusionite
722:Sussexite
703:Manganese
612:235729616
516:Tavistock
483:, and an
479:, uneven
378:aluminium
374:manganese
262:3.11–3.19
170:Unit cell
1091:arsenate
1060:Hauerite
1047:Sulfides
1022:Sugilite
957:Braunite
924:Triplite
841:Galaxite
826:Bixbyite
745:Ankerite
706:minerals
524:granitic
481:fracture
465:cleavage
459:and non-
390:hydrogen
367:elements
360:hydrated
318:2V angle
218:hardness
205:Fracture
195:Cleavage
38:Category
1117:sulfate
1081:Axinite
800:Nsutite
714:Borates
590:Bibcode
504:chemist
501:English
312:Visible
122:8.DD.20
49:Formula
33:General
778:Simple
770:Oxides
636:MinDat
610:
473:streak
392:. Its
386:oxygen
238:Streak
228:Luster
147:(same
1074:Other
877:Umber
814:Mixed
608:S2CID
536:veins
520:Devon
514:near
365:with
242:White
186:Color
530:and
512:Mine
506:and
423:(OH)
414:AlPO
406:,Mn)
388:and
370:iron
163:Bba2
83:(OH)
74:AlPO
66:,Mn)
598:doi
518:in
398:(Fe
396:is
112:Chd
58:(Fe
1169::
606:.
596:.
586:85
584:.
580:.
538:.
432:•H
384:,
380:,
376:,
372:,
92:•H
1129:)
1125:(
1119:)
1115:(
1109:)
1105:(
1093:)
1089:(
695:e
688:t
681:v
614:.
600::
592::
441:O
437:2
428:2
419:4
290:γ
286:β
282:α
280:n
222:5
151:)
101:O
97:2
88:2
79:4
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