26:
443:
The
Leadhills macphersonite is a very pale amber to colorless in color, while the Argentolle mine macphersonite is colorless to white. It has a luster of adamantine on fresh surfaces and elsewhere it is resinous. Macphersonite is soft with a 2.5-3 on the
435:. Stacking of the three layers can be detailed as ...BABCCBABCC... similar to leadhillite. Two C layers of lead carbonate in the BAB stacking provide a weak connection that leads to the perfect {001} cleavage.
451:
Macphersonite has a very strong yellow fluorescence under both long and short wave, ultraviolet is displayed by the
Leadhills specimens, the Argentolle material does not fluoresce.
711:
91:
389:
706:
234:
593:"Macphersonite, a new mineral from Leadhills, Scotland, and Saint-Prix, France – a polymorph of leadhillite and susannite"
464:
400:. Macphersonite is generally white, colorless, or a pale amber in color and has a white streak. It crystallizes in the
701:
560:
423:
The structure of macphersonite is represented as a sequence of three layers stacked along the . The first layer is a
101:
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81:
412:
224:
467:
region of France. It is the rarest of the three polymorphs. It occurs in lead deposits associated with
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623:
543:
214:
574:
385:
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41:
615:
533:
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48:
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111:
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123:
627:
619:
492:
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116:
411:
Macphersonite is named after Harry Gordon
Macpherson, a keeper of minerals at the
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25:
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of Pcab. It is fairly soft mineral that has a high specific gravity.
488:
448:, has an uneven fracture with a high density of 6.5g/cm.
352:
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674:Mineralogical Magazine, 1998 vol 62(4), pp 451=459
431:, and the third is a layer composed of lead and
650:Steele, Ian, Pluth, Joseph, Livingstone, Alan.
586:
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8:
570:
568:
415:. It was discovered and accepted in 1984.
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537:
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463:region of southwest Scotland and in the
504:
652:Crystal structure of macphersonite (Pb
427:tetrahedra, the second is of lead and
15:
7:
514:"IMA–CNMNC approved mineral symbols"
155:a = 10.37 Å, b = 23.10 Å,
591:Livingstone, A.; Sarp, H. (1984).
14:
290:nα = 1.870 nβ = 2.000 nγ = 2.010
209:Polysynthetic, lamellar, contact
672:): comparison with leadhillite
620:10.1180/minmag.1984.048.347.14
459:Macphersonite is found in the
333:A very strong and vivid yellow
252:Adamantine, otherwise resinous
1:
684:Macphersonite data on Mindat
182:White, pale amber, colorless
159:β = 106.43°; Z = 8
728:
712:Minerals in space group 61
465:Saint-Prix, Saône-et-Loire
23:
600:Mineralogical Magazine
518:Mineralogical Magazine
707:Orthorhombic minerals
413:Royal Scottish Museum
338:Other characteristics
92:Strunz classification
612:1984MinM...48..277L
539:10.1180/mgm.2021.43
530:2021MinM...85..291W
512:Warr, L.N. (2021).
439:Physical properties
102:Dana classification
702:Carbonate minerals
277:Optical properties
128:Dipyramidal (mmm)
386:carbonate mineral
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157:c = 9.25 Å,
42:Carbonate mineral
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286:Refractive index
268:Specific gravity
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219:Perfect on {010}
54:
53:(repeating unit)
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606:(347): 277–82.
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561:Mineralienatlas
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133:: (2/m 2/m 2/m)
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524:(3): 291–320.
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404:system with a
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174:1,078.90 g/mol
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164:Identification
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112:Crystal system
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446:Mohs hardness
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362:Macphersonite
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341:Polymorph of
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296:Birefringence
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188:Crystal habit
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124:Crystal class
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79:
56:
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19:Macphersonite
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679:
651:
631:. Retrieved
603:
599:
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521:
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493:pyromorphite
458:
450:
442:
422:
410:
402:orthorhombic
361:
360:
329:fluorescence
170:Formula mass
143:
117:Orthorhombic
575:Web Mineral
485:leadhillite
481:scotlandite
406:space group
394:leadhillite
390:trimorphous
343:leadhillite
326:Ultraviolet
280:Biaxial (-)
139:Space group
106:17.01.04.01
696:Categories
499:References
477:caledonite
455:Occurrence
353:References
316:Dispersion
235:Mohs scale
131:H-M symbol
82:IMA symbol
548:235729616
473:susannite
469:cerussite
461:Leadhills
433:carbonate
429:hydroxide
419:Structure
398:susannite
347:susannite
300:δ = 0.140
194:hexagonal
151:Unit cell
628:55488942
388:that is
320:r > v
306:2V angle
238:hardness
225:Fracture
215:Cleavage
205:Twinning
38:Category
633:26 June
608:Bibcode
526:Bibcode
425:sulfate
384:, is a
242:2.5 - 3
198:tabular
192:Pseudo
96:5.BF.40
49:Formula
33:General
626:
546:
489:galena
310:35-36°
258:Streak
248:Luster
229:Uneven
624:S2CID
596:(PDF)
544:S2CID
392:with
262:White
179:Color
668:(OH)
660:)(CO
635:2016
491:and
396:and
380:(OH)
372:)(CO
364:, Pb
345:and
272:6.50
144:Pcab
73:(OH)
65:)(CO
656:(SO
616:doi
534:doi
368:(SO
86:Mps
61:(SO
698::
643:^
622:.
614:.
604:48
602:.
598:.
581:^
567:^
542:.
532:.
522:85
520:.
516:.
495:.
487:,
483:,
479:,
475:,
471:,
196:,
57:Pb
670:2
666:2
664:)
662:3
658:4
654:4
637:.
618::
610::
550:.
536::
528::
382:2
378:2
376:)
374:3
370:4
366:4
75:2
71:2
69:)
67:3
63:4
59:4
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