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:
935:
949:
1236:
365:
The matlockite group consists of a number of minerals which share a similar crystal structure. The group includes bismuth, lead or calcium halides:
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74:
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907:
219:
1370:
1185:
1058:
1004:
629:
327:
1195:
1119:
759:
1089:
1331:
1134:
1109:
1084:
970:
795:
613:
299:
The mineral, a lead fluorochloride (formula PbFCl), was discovered sometime around the early 1800s at Bage Mine at
84:
469:
1033:
869:
826:
357:. Samples have also been found at locations in South Africa, Peru, Chile, Australia, Austria, France and Italy.
1360:
643:
956:
515:, T. Bridges, M.E. Smith, Journal of the Russell Society Volume 1, No. 2, p7-14, 1983 Retrieved on 2011-01-11
1200:
1129:
334:
64:
322:
A very large specimen 10 cm across, and originating from
Derbyshire, exists in the collections of the
1365:
984:
889:
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728:
718:
1338:
1251:
998:
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186:
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161:
Flattened, tabular crystals occurring as aggregates, rosettelike, radiating, hemispherical; also massive
537:
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209:
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166:
1301:
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1157:
1048:
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836:
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133:
527:. The Mineralogy of Derbyshire with a Description of the most Interesting Mines. 1802, London
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50:
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1151:
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1099:
1038:
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723:
43:
1323:
438:
1231:
1226:
1053:
668:
387:
338:
280:
94:
485:
1354:
1114:
816:
708:
703:
456:
373:
156:
106:
333:
Matlockite has been reported from a variety of locations since its discovery at the
1246:
921:
821:
774:
663:
653:
398:
512:
831:
698:
121:
27:
598:
1271:
380:
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288:
113:
99:
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524:
312:
308:
447:
422:
575:
354:
342:
501:
346:
277:
602:
551:
326:. A 7 cm specimen can be found in the collection of
553:
Working with
Knowledge (XXG) – a museum's perspective
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147:
142:
132:
120:
105:
93:
83:
73:
63:
49:
39:
34:
20:
513:Phosgenite and Matlockite in Derbyshire (Part 1)
936:Miravan Breaking Open the Tomb of his Ancestors
614:
8:
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
1175:
621:
607:
599:
843:Gen. Johnson Saving Officer from Tomahawk
446:
303:near Matlock, together with specimens of
497:
495:
493:
413:
17:
915:A Philosopher Lecturing on the Orrery
481:
479:
477:
7:
943:The Alchemist Discovering Phosphorus
423:"IMA–CNMNC approved mineral symbols"
324:American Museum of Natural History
14:
1095:Derby Racecourse Roman settlement
151:Colourless to yellow and greenish
111:Ditetragonal dipyramidal (4/mmm)
929:Romeo and Juliet: the Tomb Scene
26:
1191:British Rail Research Division
404:and the eponymous matlockite.
1:
908:Grotto in the Gulf of Salerno
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
1376:Minerals in space group 129
1196:Derby Philosophical Society
550:Nick Moyes (9 April 2011).
214:Adamantine, pearly on {001}
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:
1034:Chelsea porcelain factory
870:William Richardson Linton
25:
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:
1064:William Duesbury
992:The Captive King
964:The Earthstopper
880:Joseph Whittaker
805:Military history
689:Henry Lark Pratt
623:
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371:
361:Matlockite group
248:Refractive index
230:Specific gravity
201:
56:
55:(repeating unit)
30:
18:
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:
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569:
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470:Mineralienatlas
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420:
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390:
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297:
259:
255:
199:
116:: (4/m 2/m 2/m)
112:
54:
53:
44:Halide minerals
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11:
5:
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1373:
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1294:
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1279:
1274:
1269:
1264:
1259:
1254:
1249:
1244:
1242:James Ferguson
1239:
1234:
1232:Erasmus Darwin
1229:
1224:
1219:
1213:
1211:
1207:
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1204:
1203:
1198:
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946:
939:
932:
925:
918:
911:
904:
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894:
886:
885:
883:
882:
877:
872:
867:
862:
860:Allenton hippo
856:
854:
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849:
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839:
834:
829:
824:
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760:William Martin
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731:
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669:Harold Gresley
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595:External links
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542:
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489:
473:
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433:(3): 291–320.
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411:
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406:
388:paralaurionite
362:
359:
339:Tiger, Arizona
296:
293:
281:halide mineral
269:
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172:
171:{001}, perfect
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143:Identification
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95:Crystal system
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1366:Lead minerals
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1297:Joseph Strutt
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1277:William Mundy
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1252:R. K. Freeman
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1222:P. P. Burdett
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1179:Organisations
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1135:The Long Lane
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1115:Codnor Castle
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1054:André Planché
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1006:Thomas Borrow
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950:Virgil's Tomb
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890:Joseph Wright
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868:
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857:
855:
851:
845:
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835:
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828:
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823:
820:
818:
817:William Goate
815:
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741:
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729:George Turner
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709:Louise Rayner
707:
705:
704:Samuel Rayner
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335:type locality
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157:Crystal habit
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107:Crystal class
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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.
