1363:
398:
29:
379:
634:. The lack of crystal habit, associated with color, is also useful for identification, as are associated minerals. A pink-red mineral with no good crystals associated with other alkaline igneous material, especially nepheline and aegirine, is a good indication a specimen is eudialyte. Iron (Fe) provides the color.
648:
Microchemical (by electron microprobe) and structural analyses of different eudialyte (and related) samples have revealed the presence of many new eudialyte-like minerals. These minerals are structurally and chemically related and joined into the eudialyte group. The group includes Zr, OH, Cl, F,
507:, but this use is limited by its rarity, which is compounded by its poor crystal habit. These factors make eudialyte of primary interest as a collector's mineral. Eudialyte typically has a significant content of U, Pb, Nb, Ta, Zr, Hf, and
586:
Alternative names of eudialyte include: almandine spar, eudalite, Saami blood. Eucolite is the name of an optically negative variety, more accurately the group member:
908:
845:
519:
Eudialyte is found associated with other alkalic igneous minerals, in addition to some minerals common to most igneous material in general.
1427:
858:
Johnsen, O.; Ferraris, G.; Gault, R.A.; Grice, D.G.; Kampf, A.R.; Pekov, I.V. (June 2003). "The nomenclature of eudialyte-group minerals".
773:
Wu, F.-Y.; Yang, Y.-H.; Marks, M.A.W.; Liu, Z.-C.; Zhou, Q.; Ge, W.-C.; Yang, J.-S.; Zhao, Z.-F.; Mitchell, R.H.; Markl, G. (April 2010). "
127:
901:
511:(REE). Because of this, geoscientists use eudialyte as a geochronometer to date and investigate the genesis of the host rocks.
1392:
255:
288:
484:
1412:
1407:
894:
1422:
1397:
1417:
117:
1402:
598:
Eudialyte's rarity makes locality useful in its identification. Prominent localities of eudialyte include
245:
235:
867:
786:
691:
823:
1317:
508:
278:
268:
1387:
709:
599:
587:
221:
615:
414:
547:
410:
1321:
1105:
974:
951:
661:
O, Ca, Sr, REEs, Mn, Fe, Nb and W. Electron vacancies can be present in their structure, too.
567:
480:
188:
563:
1311:
1158:
1065:
875:
794:
699:
316:
298:
51:
1367:
1331:
1261:
643:
418:
871:
790:
747:
695:
1327:
1076:
1050:
1045:
928:
607:
535:
437:
137:
1381:
1251:
1221:
1196:
1123:
984:
969:
713:
456:
359:
334:
211:
149:
44:
397:
1201:
1166:
1128:
551:
1347:
798:
761:
1246:
1231:
1176:
1143:
1113:
1070:
1009:
999:
964:
559:
543:
539:
382:
344:
172:
28:
1337:
1279:
1269:
1216:
1186:
1148:
1118:
1086:
1035:
1019:
879:
523:
354:
160:
1341:
1301:
1241:
1226:
1211:
1206:
1181:
1133:
1081:
1060:
1004:
941:
936:
917:
623:
575:
527:
500:
488:
470:
450:
1305:
1274:
1236:
1171:
1138:
1055:
1040:
959:
631:
571:
555:
531:
504:
463:
422:
216:
Crystals short rhombohedral to long prismatic, granular, irregular masses
142:
704:
679:
378:
1295:
1014:
920:
777:
U-Pb, Sr, Nd and Hf isotopic analysis of eudialyte by LA-(MC)-ICP-MS".
473:
466:
459:
426:
406:
811:
733:
886:
627:
619:
611:
603:
455:, meaning "well decomposable", is a somewhat rare, nine-member-ring
1091:
396:
890:
447:
441:
479:
Eudialyte was first described in 1819 for an occurrence in
349:
Weak: O= colorless, pale yellow, pink; E= pink to colorless
476:. Its name alludes to its ready solubility in acid.
1288:
1260:
1157:
1104:
1028:
992:
983:
950:
927:
388:
372:
353:
343:
333:
315:
307:
297:
287:
277:
267:
254:
244:
234:
220:
210:
202:
197:
187:
171:
148:
136:
126:
116:
50:
40:
35:
21:
902:
8:
193:a = 14.31, c = 30.15 ; Z = 12
989:
909:
895:
887:
703:
503:. Another use of eudialyte is as a minor
206:Red, magenta, brown; also blue and yellow
757:
755:
729:
727:
725:
723:
670:
18:
743:
741:
7:
680:"IMA–CNMNC approved mineral symbols"
499:Eudialyte is used as a minor ore of
226:Distinct on {0001} imperfect on {11
14:
1361:
824:"Minerals Colored by Metal Ions"
425:, and the little brown bits are
377:
27:
417:, Brazil. The white mineral is
657:-bearing silicates of Na, K, H
436:, whose name derives from the
1:
799:10.1016/j.chemgeo.2010.02.007
522:Associate minerals include:
485:Ilimaussaq intrusive complex
1428:Minerals in space group 166
1444:
641:
622:, but it is also found in
442:
293:Transparent to translucent
1357:
880:10.2113/gscanmin.41.3.785
860:The Canadian Mineralogist
154:Hexagonal scalenohedral (
26:
828:minerals.gps.caltech.edu
594:Notes for identification
762:Eudialyte on Webmineral
734:Eudialyte on Mindat.org
448:
748:Handbook of Mineralogy
684:Mineralogical Magazine
430:
1393:Radioactive gemstones
400:
373:Other characteristics
128:Strunz classification
16:Cyclosilicate mineral
653:and possibly also SO
1368:Minerals portal
872:2003CaMin..41..785J
791:2010ChGeo.273....8W
705:10.1180/mgm.2021.43
696:2021MinM...85..291W
678:Warr, L.N. (2021).
515:Associated minerals
509:rare earth elements
1413:Manganese minerals
1408:Zirconium minerals
812:Eucolite on Mindat
600:Mont Saint-Hilaire
588:ferrokentbrooksite
431:
308:Optical properties
1423:Trigonal minerals
1375:
1374:
1100:
1099:
975:Manganoan calcite
846:Mineral Galleries
582:Alternative names
481:nepheline syenite
462:, which forms in
395:
394:
1435:
1366:
1365:
1364:
1312:Manganese nodule
1066:Manganotantalite
990:
911:
904:
897:
888:
883:
838:
837:
835:
834:
820:
814:
809:
803:
802:
779:Chemical Geology
770:
764:
759:
750:
745:
736:
731:
718:
717:
707:
675:
454:
445:
444:
381:
317:Refractive index
299:Specific gravity
260:
229:
182:
166:
157:
57:
56:(repeating unit)
31:
19:
1443:
1442:
1438:
1437:
1436:
1434:
1433:
1432:
1398:Sodium minerals
1378:
1377:
1376:
1371:
1362:
1360:
1353:
1284:
1256:
1153:
1096:
1024:
979:
946:
923:
915:
857:
854:
852:Further reading
842:
841:
832:
830:
822:
821:
817:
810:
806:
772:
771:
767:
760:
753:
746:
739:
732:
721:
677:
676:
672:
667:
660:
656:
652:
646:
644:Eudialyte group
640:
638:Eudialyte group
616:Poços de Caldas
596:
584:
517:
497:
469:rocks, such as
421:, the black is
419:alkali feldspar
415:Poços de Caldas
367:
363:
328:
325:= 1.606–1.610 n
324:
258:
227:
180:
164:
159:
155:
112:
108:
104:
100:
96:
92:
88:
84:
83:
79:
75:
71:
67:
63:
55:
54:
17:
12:
11:
5:
1441:
1439:
1431:
1430:
1425:
1420:
1418:Cyclosilicates
1415:
1410:
1405:
1400:
1395:
1390:
1380:
1379:
1373:
1372:
1358:
1355:
1354:
1352:
1351:
1345:
1335:
1328:Zincobotryogen
1325:
1315:
1309:
1299:
1298:(borosilicate)
1292:
1290:
1286:
1285:
1283:
1282:
1277:
1272:
1266:
1264:
1258:
1257:
1255:
1254:
1249:
1244:
1239:
1234:
1229:
1224:
1219:
1214:
1209:
1204:
1199:
1194:
1189:
1184:
1179:
1174:
1169:
1163:
1161:
1155:
1154:
1152:
1151:
1146:
1141:
1136:
1131:
1126:
1121:
1116:
1110:
1108:
1102:
1101:
1098:
1097:
1095:
1094:
1089:
1084:
1079:
1074:
1073:(calvonigrite)
1068:
1063:
1058:
1053:
1051:Ferrotantalite
1048:
1046:Ferrocolumbite
1043:
1038:
1032:
1030:
1026:
1025:
1023:
1022:
1017:
1012:
1007:
1002:
996:
994:
987:
981:
980:
978:
977:
972:
967:
962:
956:
954:
948:
947:
945:
944:
939:
933:
931:
925:
924:
916:
914:
913:
906:
899:
891:
885:
884:
866:(3): 785–794.
853:
850:
849:
848:
840:
839:
815:
804:
765:
751:
737:
719:
690:(3): 291–320.
669:
668:
666:
663:
658:
654:
650:
642:Main article:
639:
636:
608:Kola Peninsula
595:
592:
583:
580:
536:lamprophyllite
516:
513:
496:
493:
393:
392:
390:
386:
385:
374:
370:
369:
365:
361:
357:
351:
350:
347:
341:
340:
337:
331:
330:
326:
322:
319:
313:
312:
311:Uniaxial (+/−)
309:
305:
304:
301:
295:
294:
291:
285:
284:
281:
275:
274:
271:
265:
264:
261:
252:
251:
248:
242:
241:
238:
232:
231:
224:
218:
217:
214:
208:
207:
204:
200:
199:
198:Identification
195:
194:
191:
185:
184:
175:
169:
168:
152:
146:
145:
140:
138:Crystal system
134:
133:
130:
124:
123:
120:
114:
113:
110:
106:
102:
98:
94:
90:
86:
81:
77:
73:
69:
65:
61:
58:
48:
47:
42:
38:
37:
33:
32:
24:
23:
15:
13:
10:
9:
6:
4:
3:
2:
1440:
1429:
1426:
1424:
1421:
1419:
1416:
1414:
1411:
1409:
1406:
1404:
1403:Iron minerals
1401:
1399:
1396:
1394:
1391:
1389:
1386:
1385:
1383:
1370:
1369:
1356:
1349:
1346:
1343:
1339:
1336:
1333:
1329:
1326:
1323:
1319:
1316:
1313:
1310:
1307:
1303:
1300:
1297:
1294:
1293:
1291:
1287:
1281:
1278:
1276:
1273:
1271:
1268:
1267:
1265:
1263:
1259:
1253:
1252:Zircophyllite
1250:
1248:
1245:
1243:
1240:
1238:
1235:
1233:
1230:
1228:
1225:
1223:
1222:Pyroxferroite
1220:
1218:
1215:
1213:
1210:
1208:
1205:
1203:
1200:
1198:
1197:Glaucochroite
1195:
1193:
1190:
1188:
1185:
1183:
1180:
1178:
1175:
1173:
1170:
1168:
1165:
1164:
1162:
1160:
1156:
1150:
1147:
1145:
1142:
1140:
1137:
1135:
1132:
1130:
1127:
1125:
1124:Lithiophilite
1122:
1120:
1117:
1115:
1112:
1111:
1109:
1107:
1103:
1093:
1090:
1088:
1085:
1083:
1080:
1078:
1075:
1072:
1069:
1067:
1064:
1062:
1059:
1057:
1054:
1052:
1049:
1047:
1044:
1042:
1039:
1037:
1034:
1033:
1031:
1027:
1021:
1018:
1016:
1013:
1011:
1008:
1006:
1003:
1001:
998:
997:
995:
991:
988:
986:
982:
976:
973:
971:
970:Rhodochrosite
968:
966:
963:
961:
958:
957:
955:
953:
949:
943:
940:
938:
935:
934:
932:
930:
926:
922:
919:
912:
907:
905:
900:
898:
893:
892:
889:
881:
877:
873:
869:
865:
861:
856:
855:
851:
847:
844:
843:
829:
825:
819:
816:
813:
808:
805:
800:
796:
792:
788:
785:(1–2): 8–34.
784:
780:
776:
769:
766:
763:
758:
756:
752:
749:
744:
742:
738:
735:
730:
728:
726:
724:
720:
715:
711:
706:
701:
697:
693:
689:
685:
681:
674:
671:
664:
662:
645:
637:
635:
633:
629:
625:
621:
617:
613:
609:
605:
601:
593:
591:
589:
581:
579:
577:
574:and titanian
573:
569:
565:
561:
557:
553:
549:
545:
541:
537:
533:
529:
525:
520:
514:
512:
510:
506:
502:
494:
492:
490:
487:of southwest
486:
482:
477:
475:
472:
468:
465:
461:
458:
457:cyclosilicate
453:
452:
439:
435:
428:
424:
420:
416:
412:
408:
404:
399:
391:
387:
384:
380:
375:
371:
368:
358:
356:
352:
348:
346:
342:
338:
336:
335:Birefringence
332:
329:= 1.610–1.613
320:
318:
314:
310:
306:
302:
300:
296:
292:
290:
286:
282:
280:
276:
272:
270:
266:
262:
257:
253:
249:
247:
243:
239:
237:
233:
225:
223:
219:
215:
213:
212:Crystal habit
209:
205:
201:
196:
192:
190:
186:
179:
176:
174:
170:
162:
153:
151:
150:Crystal class
147:
144:
141:
139:
135:
131:
129:
125:
121:
119:
115:
59:
53:
49:
46:
45:Cyclosilicate
43:
39:
34:
30:
25:
20:
1359:
1202:Jeffersonite
1191:
1167:Babingtonite
1129:Natrophilite
863:
859:
831:. Retrieved
827:
818:
807:
782:
778:
774:
768:
687:
683:
673:
647:
597:
585:
552:arfvedsonite
521:
518:
498:
478:
433:
432:
402:
177:
1350:(tungstate)
1247:Zakharovite
1232:Spessartine
1177:Brownleeite
1144:Triploidite
1114:Childrenite
1077:Romanèchite
1071:Psilomelane
1010:Manganosite
1000:Hausmannite
965:Kutnohorite
560:aenigmatite
544:catapleiite
540:lorenzenite
443:Εὖ διάλυτος
383:Radioactive
345:Pleochroism
289:Diaphaneity
173:Space group
1382:Categories
1338:Wolframite
1280:Rambergite
1270:Alabandite
1217:Piemontite
1187:Chloritoid
1149:Zanazziite
1119:Graftonite
1106:Phosphates
1087:Todorokite
1036:Birnessite
1020:Pyrolusite
952:Carbonates
833:2023-03-01
665:References
524:microcline
389:References
355:Solubility
256:Mohs scale
161:H-M symbol
118:IMA symbol
76:SiO(O,OH,H
1388:Gemstones
1348:Hübnerite
1342:tungstate
1322:sulfosalt
1318:Samsonite
1314:(various)
1302:Geigerite
1242:Tephroite
1227:Rhodonite
1212:Ottrelite
1207:Knebelite
1192:Eudialyte
1182:Calderite
1159:Silicates
1134:Purpurite
1082:Tantalite
1061:Jacobsite
1005:Manganite
942:Tusionite
937:Sussexite
918:Manganese
714:235729616
624:Greenland
576:magnetite
548:murmanite
528:nepheline
501:zirconium
489:Greenland
471:nepheline
434:Eudialyte
411:lujavrite
403:eudialyte
339:δ = 0.004
303:2.74–3.10
189:Unit cell
22:Eudialyte
1306:arsenate
1275:Hauerite
1262:Sulfides
1237:Sugilite
1172:Braunite
1139:Triplite
1056:Galaxite
1041:Bixbyite
960:Ankerite
921:minerals
632:Arkansas
572:titanite
568:låvenite
556:sodalite
532:aegirine
505:gemstone
474:syenites
464:alkaline
451:dialytos
423:aegirine
273:Vitreous
259:hardness
246:Tenacity
236:Fracture
222:Cleavage
143:Trigonal
41:Category
1332:sulfate
1296:Axinite
1015:Nsutite
929:Borates
868:Bibcode
787:Bibcode
775:In situ
692:Bibcode
564:rinkite
483:of the
467:igneous
460:mineral
440:phrase
427:biotite
413:) from
407:syenite
376:Mildly
250:Brittle
132:9.CO.10
109:(OH,Cl)
68:(Fe,Mn)
52:Formula
36:General
993:Simple
985:Oxides
712:
630:, and
628:Norway
620:Brazil
612:Russia
604:Canada
279:Streak
269:Luster
240:Uneven
1289:Other
1092:Umber
1029:Mixed
710:S2CID
438:Greek
401:Pink
283:White
203:Color
614:and
495:Uses
167:2/m)
876:doi
795:doi
783:273
700:doi
618:in
610:in
602:in
449:eu
405:in
263:5–6
163:: (
158:m)
122:Eud
97:(Si
85:(Si
1384::
874:.
864:41
862:.
826:.
793:.
781:.
754:^
740:^
722:^
708:.
698:.
688:85
686:.
682:.
649:CO
626:,
606:,
590:.
578:.
570:,
566:,
562:,
558:,
554:,
550:,
546:,
542:,
538:,
534:,
530:,
526:,
491:.
446:,
364:SO
230:0}
103:27
80:O)
72:Zr
64:Ca
62:15
60:Na
1344:)
1340:(
1334:)
1330:(
1324:)
1320:(
1308:)
1304:(
910:e
903:t
896:v
882:.
878::
870::
836:.
801:.
797::
789::
716:.
702::
694::
659:3
655:4
651:3
429:.
409:(
366:4
362:2
360:H
327:ε
323:ω
321:n
228:2
183:m
181:3
178:R
165:3
156:3
111:2
107:2
105:)
101:O
99:9
95:2
93:)
91:9
89:O
87:3
82:3
78:2
74:3
70:3
66:6
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
