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20:
53:
Ranging in colour from brownish-red, to blue-grey, and chatoyant yellow. The
Chinese variety are predominantly a reddish-brown, with regions of chatoyant blue and yellow. The Namibian variety are less varied, being predominantly a chatoyant blue-grey, with less common reddish-browns and yellows.
72:, due to the brecciated texture containing chatoyant material. However, while they are similar mineralogically, pietersite is not a brecciated form of either. Instead, the chatoyancy is due to a shared mineral,
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Thomas, A. (2008) Gemstones: Properties, Identification and Use. New
Holland Publishers, London
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603:
472:
133:
Zhong H. (1994) Gemstone sources in Henan
Province. China Lapidary, Vol. 9, No. 3, pp. 43–46
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42:, where it is mined for use as a decorative stone due to its chaotic
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It was first described in
Namibia in 1962 and was discovered in
160:
98:"A MICROSTRUCTURAL STUDY OF PIETERSITE FROM NAMIBIA AND CHINA"
1190:
68:
Often inaccurately described as a brecciated form of
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192:
30:is a commercial term for a variety of the mineral
1210:
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8:
16:Commercial term for a variety of chalcedony
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109:
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89:
85:
7:
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1169:
1189:. You can help Knowledge (XXG) by
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96:Kaifan, H.; Heaney, P. (2010).
1:
1257:
1168:
70:tiger's-eye or hawk's-eye
232:Basaltic trachyandesite
212:Alkali feldspar granite
1185:-related article is a
24:
622:Banded iron formation
111:10.5741/GEMS.46.4.280
22:
104:. 46(n.4): 280–286.
65:of China - in 1966.
34:. Originating from
23:Polished Pietersite
978:Specific varieties
25:
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1163:
1162:
408:Nepheline syenite
102:Gems and Gemology
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1219:
1212:
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1105:Rapakivi granite
817:Metamorphic rock
604:Sedimentary rock
473:Quartz monzonite
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1070:Litchfieldite
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1035:Hyaloclastite
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348:Hyaloclastite
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1191:expanding it
1180:
1165:
1094:
1080:Luxullianite
1060:Lapis lazuli
1005:Blue Granite
932:Serpentinite
907:Metapsammite
657:Conglomerate
579:Trondhjemite
557:Trachybasalt
498:Pantellerite
398:Monzogranite
343:Hornblendite
328:Granodiorite
194:Igneous rock
129:
120:
101:
67:
56:
52:
27:
26:
969:Whiteschist
860:Greenschist
840:Cataclasite
830:Amphibolite
757:Phosphorite
707:Itacolumite
632:Calcarenite
478:Quartzolite
413:Nephelinite
383:Lamprophyre
338:Harzburgite
296:Napoleonite
269:Charnockite
264:Carbonatite
254:Blairmorite
217:Anorthosite
74:crocodolite
50:structure.
1241:Rock stubs
1236:Chalcedony
1230:Categories
1135:Teschenite
1120:Shonkinite
1095:Pietersite
1090:Novaculite
1000:Borolanite
985:Adamellite
902:Metapelite
870:Calcflinta
835:Blueschist
825:Anthracite
807:Wackestone
787:Travertine
732:Lumachelle
712:Jaspillite
667:Diamictite
589:Websterite
574:Troctolite
550:Benmoreite
510:Shonkinite
483:Rhyodacite
463:Pyroxenite
433:Peridotite
393:Lherzolite
368:Kimberlite
358:Ignimbrite
353:Icelandite
333:Granophyre
242:Shoshonite
152:Mindat.org
147:Gemdat.org
80:References
48:brecciated
44:chatoyancy
32:chalcedony
28:Pietersite
1150:Variolite
1140:Theralite
1130:Tachylite
1115:Rodingite
1085:Mangerite
1065:Larvikite
1050:Jasperoid
1045:Jadeitite
1010:Epidosite
964:Tectonite
957:Soapstone
922:Quartzite
892:Migmatite
877:Itabirite
855:Granulite
797:Turbidite
777:Sylvinite
772:Siltstone
762:Sandstone
747:Oil shale
727:Limestone
702:Gritstone
697:Greywacke
692:Geyserite
682:Evaporite
672:Diatomite
647:Claystone
612:Argillite
525:Tachylyte
493:Comendite
438:Phonolite
428:Pegmatite
403:Monzonite
378:Lamproite
373:Komatiite
313:Foidolite
274:Enderbite
237:Mugearite
61:- in the
1125:Taconite
1100:Pyrolite
1025:Ganister
995:Aphanite
990:Appinite
912:Phyllite
897:Mylonite
865:Hornfels
845:Eclogite
742:Mudstone
717:Laterite
677:Dolomite
594:Wehrlite
569:Trachyte
562:Hawaiite
540:Tonalite
535:Tephrite
488:Rhyolite
453:Porphyry
423:Obsidian
308:Essexite
259:Boninite
249:Basanite
207:Andesite
1145:Unakite
1075:Llanite
1040:Ijolite
1015:Felsite
947:Suevite
782:Tillite
722:Lignite
662:Coquina
627:Breccia
520:Syenite
448:Picrite
363:Ijolite
323:Granite
291:Diorite
286:Diabase
202:Adakite
59:Xichuan
36:Namibia
1055:Kenyte
1030:Gossan
927:Schist
887:Marble
850:Gneiss
752:Oolite
617:Arkose
515:Sovite
505:Scoria
458:Pumice
418:Norite
388:Latite
318:Gabbro
303:Dunite
281:Dacite
227:Basalt
222:Aplite
1181:This
1020:Flint
942:Slate
937:Skarn
802:Varve
767:Shale
687:Flint
642:Chert
637:Chalk
40:China
1187:stub
1183:rock
792:Tufa
737:Marl
652:Coal
584:Tuff
46:and
38:and
1155:Wad
106:doi
1232::
100:.
88:^
76:.
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1193:.
180:e
173:t
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114:.
108::
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