28:
318:
in 1802 in which he gives a detailed description of phosgenite, which is then followed by a mention of a mineral he refers to as "glass lead" – a description which does rather equate to the appearance of matlockite. It is a light, translucent creamy-yellow colour, but heavy in weight having a density
842:
311:. Although phosgenite was known at this time, it seems likely that matlockite itself remained unappreciated as a new mineral for some fifty years. It was given the name by Greg in 1851. The first mention of matlockite may have been in
291:, England, where it was first discovered in a nearby mine. Matlockite (chemical formula: PbFCl) gives its name to the matlockite group which consists of rare minerals of a similar structure.
1380:
365:
The matlockite group consists of a number of minerals which share a similar crystal structure. The group includes bismuth, lead or calcium halides:
935:
949:
394:
1236:
1016:
620:
914:
1375:
1286:
1241:
942:
1162:
323:
1094:
928:
299:
The mineral, a lead fluorochloride (formula PbFCl), was discovered sometime around the early 1800s at Bage Mine at
74:
469:
357:. Samples have also been found at locations in South Africa, Peru, Chile, Australia, Austria, France and Italy.
1385:
1296:
1190:
196:
907:
515:, T. Bridges, M.E. Smith, Journal of the Russell Society Volume 1, No. 2, p7-14, 1983 Retrieved on 2011-01-11
219:
1370:
1185:
1058:
1004:
629:
327:
322:
A very large specimen 10 cm across, and originating from
Derbyshire, exists in the collections of the
1195:
1119:
1089:
759:
161:
Flattened, tabular crystals occurring as aggregates, rosettelike, radiating, hemispherical; also massive
1331:
1134:
1109:
1084:
970:
795:
613:
84:
537:
1033:
869:
826:
1360:
956:
643:
1200:
1129:
334:
64:
1365:
984:
889:
811:
733:
728:
718:
133:
1338:
1251:
998:
859:
606:
527:. The Mineralogy of Derbyshire with a Description of the most Interesting Mines. 1802, London
186:
176:
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713:
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658:
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300:
8:
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1221:
1079:
350:
284:
209:
438:
1276:
1104:
673:
648:
452:
166:
485:
1301:
1266:
1157:
1048:
1043:
900:
836:
683:
678:
456:
333:
Matlockite has been reported from a variety of locations since its discovery at the
1256:
1216:
1063:
991:
963:
879:
864:
688:
442:
247:
229:
50:
1323:
1319:
1291:
1281:
1151:
1124:
1099:
1038:
779:
754:
723:
512:
43:
1231:
1226:
1053:
668:
598:
387:
338:
280:
94:
1354:
1114:
816:
708:
703:
156:
106:
373:
1246:
921:
821:
774:
663:
653:
398:
831:
698:
121:
447:
422:
1271:
575:
380:
366:
304:
288:
113:
99:
501:
769:
524:
312:
308:
27:
354:
342:
551:
346:
277:
326:. A 7 cm specimen can be found in the collection of
1352:
628:
513:Phosgenite and Matlockite in Derbyshire (Part 1)
936:Miravan Breaking Open the Tomb of his Ancestors
553:Working with Knowledge – a museum's perspective
614:
538:American Mineralogist, Vol 20, 469–473, 1935
337:of Derbyshire. The mineral is also found in
1381:Collection of Derby Museum and Art Gallery
621:
607:
843:Gen. Johnson Saving Officer from Tomahawk
446:
303:near Matlock, together with specimens of
497:
495:
493:
543:
1353:
915:A Philosopher Lecturing on the Orrery
602:
568:
490:
481:
479:
477:
943:The Alchemist Discovering Phosphorus
423:"IMA–CNMNC approved mineral symbols"
420:
360:
13:
474:
324:American Museum of Natural History
14:
1397:
1095:Derby Racecourse Roman settlement
594:
151:Colourless to yellow and greenish
111:Ditetragonal dipyramidal (4/mmm)
929:Romeo and Juliet: the Tomb Scene
26:
1191:British Rail Research Division
530:
518:
506:
463:
414:
404:and the eponymous matlockite.
294:
1:
908:Grotto in the Gulf of Salerno
407:
138:a = 4.11 Å, c = 7.23 Å; Z = 2
1163:Whitehurst & Son sundial
630:Derby Museum and Art Gallery
328:Derby Museum and Art Gallery
7:
1376:Minerals in space group 129
1196:Derby Philosophical Society
550:Nick Moyes (9 April 2011).
214:Adamantine, pearly on {001}
10:
1402:
1186:Andrew Handyside & Co.
1110:Heath Wood barrow cemetery
971:A Philosopher by Lamplight
796:Bonnie Prince Charlie Room
283:, named after the town of
1314:
1209:
1178:
1171:
1143:
1072:
1034:Chelsea porcelain factory
1026:
888:
870:William Richardson Linton
852:
804:
788:
742:
636:
264:
246:
238:
228:
218:
208:
195:
185:
175:
165:
155:
147:
142:
132:
120:
105:
93:
83:
73:
63:
49:
39:
34:
25:
20:
1090:Strutt's Park Roman fort
644:Francis Leggatt Chantrey
556:. Event occurs at 14:30
316:Mineralogy of Derbyshire
1332:Pickford's House Museum
1262:Sir George Harpur Crewe
1201:Derby Exhibition (1839)
1144:Science and engineering
540:Retrieved on 2011-01-11
345:in Greece, a mine near
181:Uneven to subconchoidal
1237:6th Duke of Devonshire
893:paintings and drawings
812:9th/12th Royal Lancers
734:Joseph Wright of Derby
486:Handbook of Mineralogy
427:Mineralogical Magazine
1386:Mixed anion compounds
957:The Blacksmith's Shop
75:Strunz classification
1080:Creswellian culture
1017:Vesuvius in Eruption
875:William Hunt Painter
750:Ashford Black Marble
659:Derby Sketching Club
536:Frondell, Clifford.
349:in Germany and near
1371:Tetragonal minerals
1059:William Billingsley
827:Francis O. Grenfell
448:10.1180/mgm.2021.43
439:2021MinM...85..291W
421:Warr, L.N. (2021).
85:Dana classification
1105:Great Heathen Army
674:Count Holtzendorff
649:Ernest Ellis Clark
576:"Matlockite Group"
319:that is over 7.1.
239:Optical properties
1348:
1347:
1310:
1309:
1302:Charles Sylvester
1267:Llewellynn Jewitt
1158:Benjamin Vulliamy
1049:Pinxton Porcelain
1044:Royal Crown Derby
901:Richard Arkwright
684:Alfred John Keene
679:Richard Hurleston
271:
270:
1393:
1287:5th Earl Ferrers
1257:Alfred E. Goodey
1176:
1175:
1064:William Duesbury
992:The Captive King
964:The Earthstopper
880:Joseph Whittaker
805:Military history
689:Henry Lark Pratt
623:
616:
609:
600:
599:
588:
587:
585:
583:
572:
566:
565:
563:
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547:
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499:
488:
483:
472:
467:
461:
460:
450:
418:
403:
392:
385:
378:
371:
361:Matlockite group
248:Refractive index
230:Specific gravity
201:
56:
55:(repeating unit)
30:
18:
17:
1401:
1400:
1396:
1395:
1394:
1392:
1391:
1390:
1361:Halide minerals
1351:
1350:
1349:
1344:
1339:Central Library
1320:Derby Silk Mill
1306:
1292:George Sorocold
1282:Joseph Pickford
1205:
1167:
1152:Atlas Coelestis
1139:
1120:Duffield Castle
1100:Hanson Log Boat
1073:Ancient Britain
1068:
1039:Derby Porcelain
1022:
892:
884:
853:Natural history
848:
800:
789:Decorative arts
784:
780:John Whitehurst
738:
724:Ernest Townsend
632:
627:
597:
592:
591:
581:
579:
574:
573:
569:
559:
557:
549:
548:
544:
535:
531:
523:
519:
511:
507:
500:
491:
484:
475:
470:Mineralienatlas
468:
464:
419:
415:
410:
401:
390:
383:
376:
369:
363:
297:
259:
255:
199:
116:: (4/m 2/m 2/m)
112:
54:
53:
44:Halide minerals
12:
11:
5:
1399:
1389:
1388:
1383:
1378:
1373:
1368:
1363:
1346:
1345:
1343:
1342:
1335:
1328:
1315:
1312:
1311:
1308:
1307:
1305:
1304:
1299:
1294:
1289:
1284:
1279:
1274:
1269:
1264:
1259:
1254:
1249:
1244:
1242:James Ferguson
1239:
1234:
1232:Erasmus Darwin
1229:
1224:
1219:
1213:
1211:
1207:
1206:
1204:
1203:
1198:
1193:
1188:
1182:
1180:
1173:
1169:
1168:
1166:
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1160:
1155:
1147:
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1140:
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1132:
1127:
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1117:
1112:
1107:
1102:
1097:
1092:
1087:
1082:
1076:
1074:
1070:
1069:
1067:
1066:
1061:
1056:
1051:
1046:
1041:
1036:
1030:
1028:
1024:
1023:
1021:
1020:
1013:
1002:
995:
988:
981:
974:
967:
960:
953:
946:
939:
932:
925:
918:
911:
904:
896:
894:
886:
885:
883:
882:
877:
872:
867:
862:
860:Allenton hippo
856:
854:
850:
849:
847:
846:
839:
834:
829:
824:
819:
814:
808:
806:
802:
801:
799:
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790:
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785:
783:
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772:
767:
762:
760:William Martin
757:
752:
746:
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740:
739:
737:
736:
731:
726:
721:
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691:
686:
681:
676:
671:
669:Harold Gresley
666:
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626:
625:
618:
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603:
596:
595:External links
593:
590:
589:
567:
542:
529:
517:
505:
489:
473:
462:
433:(3): 291–320.
412:
411:
409:
406:
388:paralaurionite
362:
359:
339:Tiger, Arizona
296:
293:
281:halide mineral
269:
268:
266:
262:
261:
257:
253:
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172:
171:{001}, perfect
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145:
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143:Identification
140:
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97:
95:Crystal system
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1366:Lead minerals
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1300:
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1297:Joseph Strutt
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1277:William Mundy
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1252:R. K. Freeman
1250:
1248:
1245:
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1240:
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1235:
1233:
1230:
1228:
1225:
1223:
1222:P. P. Burdett
1220:
1218:
1215:
1214:
1212:
1208:
1202:
1199:
1197:
1194:
1192:
1189:
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1183:
1181:
1179:Organisations
1177:
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1164:
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1142:
1136:
1135:The Long Lane
1133:
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1128:
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1123:
1121:
1118:
1116:
1115:Codnor Castle
1113:
1111:
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1083:
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1062:
1060:
1057:
1055:
1054:André Planché
1052:
1050:
1047:
1045:
1042:
1040:
1037:
1035:
1032:
1031:
1029:
1025:
1019:
1018:
1014:
1012:
1011:
1007:
1006:Thomas Borrow
1003:
1001:
1000:
996:
994:
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989:
987:
986:
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979:
975:
973:
972:
968:
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961:
959:
958:
954:
952:
951:
950:Virgil's Tomb
947:
945:
944:
940:
938:
937:
933:
931:
930:
926:
924:
923:
919:
917:
916:
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910:
909:
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903:
902:
898:
897:
895:
891:
890:Joseph Wright
887:
881:
878:
876:
873:
871:
868:
866:
863:
861:
858:
857:
855:
851:
845:
844:
840:
838:
835:
833:
830:
828:
825:
823:
820:
818:
817:William Goate
815:
813:
810:
809:
807:
803:
797:
794:
793:
791:
787:
781:
778:
776:
773:
771:
768:
766:
763:
761:
758:
756:
753:
751:
748:
747:
745:
741:
735:
732:
730:
729:George Turner
727:
725:
722:
720:
717:
715:
712:
710:
709:Louise Rayner
707:
705:
704:Samuel Rayner
702:
700:
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690:
687:
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650:
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641:
639:
635:
631:
624:
619:
617:
612:
610:
605:
604:
601:
577:
571:
555:
554:
546:
539:
533:
526:
521:
514:
509:
503:
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480:
478:
471:
466:
458:
454:
449:
444:
440:
436:
432:
428:
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417:
413:
405:
400:
396:
389:
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375:
368:
358:
356:
352:
348:
344:
340:
336:
335:type locality
331:
329:
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320:
317:
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310:
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275:
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157:Crystal habit
154:
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125:
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119:
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110:
108:
107:Crystal class
104:
101:
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82:
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72:
68:
66:
62:
58:
52:
48:
45:
42:
38:
33:
29:
24:
19:
16:
1337:
1330:
1324:Lombe's Mill
1318:
1247:Arthur Keily
1150:
1125:Icknield St.
1015:
1009:
1005:
997:
990:
983:
976:
969:
962:
955:
948:
941:
934:
927:
922:Indian Widow
920:
913:
906:
899:
865:King of Rome
841:
837:David Spence
822:Robert Kells
775:White Watson
764:
719:William Tate
714:Thomas Smith
664:Harry Fidler
654:W. J. Coffee
580:. Retrieved
578:. Mindat.org
570:
558:. Retrieved
552:
545:
532:
520:
508:
465:
430:
426:
416:
399:zavaritskite
377:(BiO)(OH,Cl)
364:
332:
321:
315:
298:
273:
272:
242:Uniaxial (−)
126:
15:
1227:D'Ewes Coke
985:The Captive
978:Samuel Ward
832:David Rushe
699:Ronald Pope
694:David Payne
295:Description
224:Transparent
220:Diaphaneity
122:Space group
1355:Categories
1272:John Lombe
1130:The Street
1010:Ann Borrow
765:Matlockite
755:John Farey
582:12 January
525:Mawe, John
502:Mindat.org
408:References
381:laurionite
374:daubréeite
367:bismoclite
305:phosgenite
289:Derbyshire
276:is a rare
274:Matlockite
265:References
197:Mohs scale
114:H-M symbol
100:Tetragonal
65:IMA symbol
21:Matlockite
1085:Derventio
1027:Porcelain
770:John Mawe
457:235729616
351:Campiglia
309:anglesite
256:= 2.150 n
234:7.1 – 7.2
134:Unit cell
999:Dovedale
560:15 April
395:rorisite
391:PbCl(OH)
384:PbCl(OH)
301:Bolehill
200:hardness
187:Tenacity
177:Fracture
167:Cleavage
89:9.2.11.1
40:Category
1217:Alkmund
1172:Related
743:Geology
637:Artists
435:Bibcode
397:CaFCl,
370:(BiO)Cl
355:Tuscany
343:Laurium
285:Matlock
260:= 2.040
204:2.5 – 3
191:Brittle
79:3.DC.25
51:Formula
35:General
1210:People
455:
402:(BiO)F
313:Mawe's
210:Luster
148:Colour
127:P4/nmm
453:S2CID
347:Essen
59:PbFCl
1008:and
584:2011
562:2011
307:and
278:lead
443:doi
353:in
287:in
69:Mtl
1357::
492:^
476:^
451:.
441:.
431:85
429:.
425:.
393:,
386:,
379:,
372:,
341:,
330:.
1326:)
1322:(
622:e
615:t
608:v
586:.
564:.
459:.
445::
437::
258:ε
254:ω
252:n
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.