841:
820:
29:
882:
589:
916:
875:
93:
921:
911:
868:
197:
230:
582:
901:
598:
575:
461:
83:
906:
187:
494:
220:
210:
512:
177:
692:
794:
438:
418:
394:
142:
852:
442:
848:
731:
502:
335:
258:
240:
62:
55:
840:
824:
532:
34:
122:
498:
804:
764:
672:
652:
379:
172:
Equant, bladed, prismatic, to needlelike crystals; fibrous, felted, lamellar aggregates
103:
38:
895:
774:
606:
516:
430:
280:
167:
115:
559:
414:
364:
313:
108:
28:
744:
739:
712:
707:
677:
657:
310:
290:
130:
800:
749:
697:
687:
631:
410:
790:
759:
717:
702:
434:
426:
406:
398:
371:
769:
682:
667:
662:
626:
454:
450:
422:
402:
367:
mineral, variously found as colorless, grey, pinkish, or brown crystals.
345:
300:
507:
482:
621:
446:
351:
548:
636:
387:
383:
357:
339:
567:
33:
Doubly terminated crystal of
Lorenzenite, 2.5 cm tip to tip, from
370:
It was first identified in 1897 in rock samples from
Narsarsuk,
571:
378:(now a synonym of lorenzenite), discovered in the 1920s in the
374:. In 1947 it was discovered to be the same as the mineral
856:
162:
Pale purple-brown, pale pink to mauve, brown to black
783:
730:
645:
614:
605:
322:
309:
299:
289:
279:
257:
249:
239:
229:
219:
209:
196:
186:
176:
166:
158:
153:
141:
129:
114:
102:
92:
82:
61:
51:
46:
21:
876:
583:
460:It was named in honor of Danish mineralogist
8:
883:
869:
611:
590:
576:
568:
27:
506:
544:
542:
540:
215:Adamantine, vitreous, sub-metallic, dull
473:
18:
528:
526:
318:Pale yellow to dull green under SW UV
7:
837:
835:
483:"IMA–CNMNC approved mineral symbols"
855:. You can help Knowledge (XXG) by
14:
839:
818:
149:c = 14.48 ; Z = 4
16:Sodium titanium silicate mineral
386:. It is also found in northern
847:This article about a specific
1:
938:
917:Minerals in space group 60
834:
334:is a rare sodium titanium
814:
462:Johannes Theodor Lorenzen
26:
922:Silicate mineral stubs
533:Handbook of Mineralogy
487:Mineralogical Magazine
182:Distinct/good on {010}
912:Orthorhombic minerals
94:Strunz classification
401:in association with
305:Measured: 38° to 41°
825:Minerals portal
508:10.1180/mgm.2021.43
499:2021MinM...85..291W
481:Warr, L.N. (2021).
235:Transparent, opaque
225:White to pale brown
147:a = 8.71, b = 5.23
395:nepheline syenites
250:Optical properties
120:Dipyramidal (mmm)
902:Titanium minerals
864:
863:
832:
831:
795:carbonate mineral
732:Silicate minerals
726:
725:
599:Titanium minerals
338:with the formula
329:
328:
271:= 2.010 – 2.040 n
267:= 1.910 – 1.950 n
929:
885:
878:
871:
849:silicate mineral
843:
836:
823:
822:
821:
612:
592:
585:
578:
569:
562:
557:
551:
546:
535:
530:
521:
520:
510:
478:
336:silicate mineral
259:Refractive index
241:Specific gravity
202:
192:Irregular/uneven
68:
67:(repeating unit)
56:Silicate mineral
31:
19:
937:
936:
932:
931:
930:
928:
927:
926:
892:
891:
890:
889:
833:
828:
819:
817:
810:
779:
722:
641:
601:
596:
566:
565:
558:
554:
547:
538:
531:
524:
480:
479:
475:
470:
362:
356:
350:
344:
275:= 2.030 – 2.060
274:
270:
266:
200:
148:
125:: (2/m 2/m 2/m)
121:
78:
74:
66:
65:
42:
35:Lovozero Massif
17:
12:
11:
5:
935:
933:
925:
924:
919:
914:
909:
904:
894:
893:
888:
887:
880:
873:
865:
862:
861:
844:
830:
829:
815:
812:
811:
809:
808:
805:borate mineral
798:
787:
785:
781:
780:
778:
777:
772:
767:
765:Nenadkevichite
762:
757:
752:
747:
742:
736:
734:
728:
727:
724:
723:
721:
720:
715:
710:
705:
700:
695:
690:
685:
680:
675:
673:Freudenbergite
670:
665:
660:
655:
653:Aeschynite-(Y)
649:
647:
643:
642:
640:
639:
634:
629:
624:
618:
616:
609:
607:Oxide minerals
603:
602:
597:
595:
594:
587:
580:
572:
564:
563:
552:
536:
522:
493:(3): 291–320.
472:
471:
469:
466:
380:Kola peninsula
360:
354:
348:
342:
327:
326:
324:
320:
319:
316:
307:
306:
303:
297:
296:
293:
287:
286:
283:
277:
276:
272:
268:
264:
261:
255:
254:
251:
247:
246:
243:
237:
236:
233:
227:
226:
223:
217:
216:
213:
207:
206:
203:
194:
193:
190:
184:
183:
180:
174:
173:
170:
164:
163:
160:
156:
155:
154:Identification
151:
150:
145:
139:
138:
133:
127:
126:
118:
112:
111:
106:
104:Crystal system
100:
99:
96:
90:
89:
86:
80:
79:
76:
72:
69:
59:
58:
53:
49:
48:
44:
43:
39:Kola Peninsula
32:
24:
23:
15:
13:
10:
9:
6:
4:
3:
2:
934:
923:
920:
918:
915:
913:
910:
908:
905:
903:
900:
899:
897:
886:
881:
879:
874:
872:
867:
866:
860:
858:
854:
850:
845:
842:
838:
827:
826:
813:
806:
802:
799:
796:
792:
789:
788:
786:
782:
776:
775:Zircophyllite
773:
771:
768:
766:
763:
761:
758:
756:
753:
751:
748:
746:
743:
741:
738:
737:
735:
733:
729:
719:
716:
714:
711:
709:
706:
704:
701:
699:
696:
694:
691:
689:
686:
684:
681:
679:
676:
674:
671:
669:
666:
664:
661:
659:
656:
654:
651:
650:
648:
644:
638:
635:
633:
630:
628:
625:
623:
620:
619:
617:
613:
610:
608:
604:
600:
593:
588:
586:
581:
579:
574:
573:
570:
561:
556:
553:
550:
545:
543:
541:
537:
534:
529:
527:
523:
518:
514:
509:
504:
500:
496:
492:
488:
484:
477:
474:
467:
465:
464:(1855–1884).
463:
458:
456:
452:
448:
444:
440:
436:
432:
431:astrophyllite
428:
424:
420:
416:
412:
408:
404:
400:
396:
393:It occurs in
391:
389:
385:
381:
377:
373:
368:
366:
359:
353:
347:
341:
337:
333:
325:
321:
317:
315:
312:
308:
304:
302:
298:
294:
292:
288:
284:
282:
281:Birefringence
278:
262:
260:
256:
252:
248:
244:
242:
238:
234:
232:
228:
224:
222:
218:
214:
212:
208:
204:
199:
195:
191:
189:
185:
181:
179:
175:
171:
169:
168:Crystal habit
165:
161:
157:
152:
146:
144:
140:
137:
134:
132:
128:
124:
119:
117:
116:Crystal class
113:
110:
107:
105:
101:
97:
95:
91:
87:
85:
81:
70:
64:
60:
57:
54:
50:
45:
40:
36:
30:
25:
20:
907:Inosilicates
857:expanding it
846:
816:
754:
555:
490:
486:
476:
459:
415:arfvedsonite
392:
375:
369:
365:orthorhombic
331:
330:
314:fluorescence
135:
109:Orthorhombic
755:Lorenzenite
745:Grossmanite
740:Aenigmatite
713:Zirconolite
708:Zimbabweite
678:Haggertyite
658:Armalcolite
332:Lorenzenite
311:Ultraviolet
291:Pleochroism
253:Biaxial (−)
245:3.42 – 3.45
231:Diaphaneity
131:Space group
22:Lorenzenite
896:Categories
801:Warwickite
750:Keilhauite
698:Perovskite
693:Latrappite
688:Keilhauite
632:Geikielite
560:Webmineral
468:References
411:microcline
399:pegmatites
323:References
198:Mohs scale
123:H–M Symbol
84:IMA symbol
791:Sabinaite
718:Zirkelite
703:Polycrase
517:235729616
435:neptunite
433:, mangan-
427:eudialyte
407:nepheline
376:ramsayite
372:Greenland
363:It is an
285:δ = 0.120
143:Unit cell
770:Titanite
760:Melanite
683:Ilmenite
668:Euxenite
663:Betafite
627:Brookite
455:ilmenite
451:titanite
439:lavenite
423:loparite
419:elpidite
403:aegirine
301:2V angle
201:hardness
188:Fracture
178:Cleavage
52:Category
41:, Russia
622:Anatase
495:Bibcode
447:apatite
443:rinkite
98:9.DB.10
63:Formula
47:General
637:Rutile
615:Simple
549:Mindat
515:
388:Canada
384:Russia
221:Streak
211:Luster
851:is a
784:Other
646:Mixed
513:S2CID
159:Color
853:stub
453:and
397:and
295:Weak
136:Pbcn
503:doi
382:of
88:Lrz
898::
539:^
525:^
511:.
501:.
491:85
489:.
485:.
457:.
449:,
445:,
441:,
437:,
429:,
425:,
421:,
417:,
413:,
409:,
405:,
390:.
352:Si
346:Ti
340:Na
75:Ti
71:Na
37:,
884:e
877:t
870:v
859:.
807:)
803:(
797:)
793:(
591:e
584:t
577:v
519:.
505::
497::
361:9
358:O
355:2
349:2
343:2
273:γ
269:β
265:α
263:n
205:6
77:2
73:2
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