29:
330:
subgroup. Older papers claim that a complete solid solution exists between tetranatrolite and gonnardite, but tetranatrolite was discredited as a separate species in 1999. A series, based on the disorder of the silicon-aluminum in the framework, appears to exist between Na-rich gonnardite and
448:, together with oxygen and water. Gonnardite has the same framework structure as natrolite, but a disordered Si, Al distribution on the tetrahedral sites. Some of the water sites in the disordered natrolite structure of gonnardite are empty.
354:
Gonnardite was named in 1896 after
Ferdinand Pierre Joseph Gonnard (1833–1923), who was Professor of Mining Engineering at the University of Lyon, France.
432:
that link to form frameworks. As with all zeolites, there are channels within the framework, and for the natrolite minerals the channels are occupied by
406:
393:, bounded by {110} and {111} as well as {100} and {001}, and gonnardite also occurs as radial hemispheres. Commonly found as zoned prisms or
713:
782:
688:
98:
521:
208:
241:
777:
517:
112:
505:
88:
173:
554:
625:
8:
394:
231:
221:
34:
558:
572:
421:
belonging to the natrolite group. The natrolite minerals are composed of chains of AlO
772:
707:
576:
513:
497:
493:
477:
469:
624:
Anthony, John W.; Bideaux, Richard A.; Bladh, Kenneth W.; Nichols, Monte C. (2005).
562:
390:
269:
251:
58:
607:
501:
122:
692:
766:
473:
418:
291:
198:
134:
51:
678:
Tschernich, Zeolites of the World (1992) Geoscience Press, pages 215 to 225
508:(the place where the mineral was first described) is La Chaux de Bergonne,
373:
2m (orthorhombic with a very close to b, or tetragonal with a equal to b).
362:
157:
567:
542:
461:
457:
429:
398:
366:
145:
127:
590:
485:
481:
465:
433:
402:
327:
375:
Unit Cell
Parameters: a = b = 13.21 Å, c = 6.622 Å, Z = 2
301:
489:
441:
323:
509:
445:
437:
28:
623:
456:
Gonnardite has been found in silica-poor volcanics and
747:
Australian
Journal of Mineralogy (2004) 10-2: 59–72
193:Colorless, white, yellow or pink to salmon orange
764:
653:Gaines et al (1997) Dana's New Mineralogy, Wiley
492:near Guildford, Tasmania. It is also found in
484:at Don Hill, Tasmania and in drill holes with
524:, England, registration number BM.1930,166.
662:American Mineralogist (1999) 84: 1445–1450
566:
602:
600:
765:
750:
725:
723:
712:: CS1 maint: archived copy as title (
512:, Saint-Germain-Lembron, Puy-de-Dôme,
729:Mineralogical Magazine (1998) 62: 548
674:
672:
670:
668:
619:
617:
597:
583:
33:Gonnardite from the Bundoora Quarry,
732:
543:"IMA–CNMNC approved mineral symbols"
540:
741:
738:American Mineralogist (1972) 77:685
720:
656:
647:
365:-bipyramidal class 2/m 2/m 2/m and
13:
756:The Mineralogical Record 37-4: 285
681:
665:
614:
520:from this locality is held at the
357:
14:
794:
322:is a comparatively rare, fibrous
384:
27:
180:c = 6.66 ; Z = 2
534:
522:Natural History Museum, London
451:
1:
527:
498:Grenville Geological Province
480:, Australia, intergrown with
412:
7:
783:Minerals in space group 122
10:
799:
203:Radiating fibrous; massive
635:. Mineral Data Publishing
608:"Gonnardite Mineral Data"
310:
300:
290:
268:
260:
250:
240:
230:
226:Vitreous to silky or dull
220:
207:
197:
189:
184:
172:
156:
133:
121:
111:
97:
87:
57:
47:
42:
26:
21:
500:, which is part of the
37:. Specimen size 4.9 cm
633:Handbook of Mineralogy
547:Mineralogical Magazine
99:Strunz classification
778:Tetragonal minerals
568:10.1180/mgm.2021.43
559:2021MinM...85..291W
541:Warr, L.N. (2021).
369:-scalenoidal class
113:Dana classification
35:Victoria, Australia
460:. It occurs with
261:Optical properties
494:nepheline-syenite
478:Stanley, Tasmania
476:of The Nut, near
317:
316:
107:
790:
757:
754:
748:
745:
739:
736:
730:
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711:
703:
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691:. Archived from
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640:
630:
621:
612:
611:
604:
595:
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587:
581:
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570:
538:
417:Gonnardite is a
380:
372:
270:Refractive index
252:Specific gravity
213:
167:
151:
142:
106:8/J.21-40 (8 ed)
105:
103:9.GA.05 (10 ed)
64:
63:(repeating unit)
31:
19:
18:
798:
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789:
788:
787:
763:
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760:
755:
751:
746:
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737:
733:
728:
721:
705:
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689:"Archived copy"
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652:
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628:
622:
615:
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605:
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588:
584:
539:
535:
530:
502:Canadian Shield
454:
428:
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415:
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358:Crystallography
350:
346:
342:
338:
334:
285:
281:
277:
211:
179:
165:
149:
144:
140:
139:Scalenohedral (
104:
82:
78:
74:
70:
62:
61:
38:
17:
16:Zeolite mineral
12:
11:
5:
796:
786:
785:
780:
775:
759:
758:
749:
740:
731:
719:
680:
664:
655:
646:
613:
596:
582:
553:(3): 291–320.
532:
531:
529:
526:
516:, France, and
453:
450:
426:
422:
414:
411:
386:
383:
377:Space Group: I
359:
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234:
228:
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218:
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205:
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195:
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187:
186:
185:Identification
182:
181:
176:
170:
169:
160:
154:
153:
137:
131:
130:
125:
123:Crystal system
119:
118:
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109:
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101:
95:
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84:
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72:
68:
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55:
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32:
24:
23:
15:
9:
6:
4:
3:
2:
795:
784:
781:
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724:
715:
709:
695:on 2014-07-29
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569:
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560:
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548:
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533:
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523:
519:
518:type material
515:
511:
507:
506:type locality
503:
499:
495:
491:
487:
483:
479:
475:
474:volcanic rock
471:
467:
463:
459:
449:
447:
443:
439:
435:
431:
420:
419:tectosilicate
410:
408:
407:paranatrolite
404:
400:
396:
392:
389:Crystals are
385:Crystal habit
382:
368:
364:
355:
352:
331:natrolite, Na
329:
325:
321:
313:
309:
306:Measured, 52°
305:
303:
299:
295:
293:
292:Birefringence
289:
273:
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199:Crystal habit
196:
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177:
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147:
138:
136:
135:Crystal class
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114:
110:
102:
100:
96:
92:
90:
86:
66:
60:
56:
53:
52:Tectosilicate
50:
46:
41:
36:
30:
25:
20:
752:
743:
734:
697:. Retrieved
693:the original
683:
658:
649:
637:. Retrieved
632:
626:"Gonnardite"
591:"Gonnardite"
585:
550:
546:
536:
455:
416:
388:
363:Orthorhombic
361:
353:
319:
318:
256:2.21 to 2.36
162:
452:Environment
436:containing
264:Biaxial (+)
246:Translucent
242:Diaphaneity
158:Space group
767:Categories
699:2010-03-30
528:References
462:thomsonite
458:pegmatites
430:tetrahedra
399:thomsonite
395:aggregates
367:tetragonal
320:Gonnardite
311:References
282:= 1.515, n
278:= 1.514, n
209:Mohs scale
178:a = 13.38
146:H-M symbol
128:Tetragonal
89:IMA symbol
22:Gonnardite
577:235729616
486:chabazite
482:natrolite
466:natrolite
434:polyhedra
413:Structure
403:natrolite
391:prismatic
328:natrolite
296:δ = 0.006
174:Unit cell
773:Zeolites
708:cite web
639:13 March
514:Auvergne
470:vesicles
302:2V angle
212:hardness
117:77.1.5.7
48:Category
555:Bibcode
496:in the
490:calcite
472:in the
442:calcium
425:and SiO
324:zeolite
286:= 1.520
71:(Si,Al)
67:(Na,Ca)
59:Formula
43:General
575:
510:Gignat
504:. The
446:barium
438:sodium
232:Streak
222:Luster
216:4 to 5
629:(PDF)
573:S2CID
397:with
236:White
190:Color
714:link
641:2022
488:and
464:and
405:and
143:2m)
563:doi
468:in
444:or
381:2d
351:O.
347:·2H
335:(Si
152:2m)
148:: (
93:Gon
79:·3H
769::
722:^
710:}}
706:{{
667:^
631:.
616:^
599:^
571:.
561:.
551:85
549:.
545:.
440:,
409:.
401:,
345:10
343:)O
339:Al
326:,
168:2d
77:10
716:)
702:.
643:.
610:.
593:.
579:.
565::
557::
427:4
423:4
379:4
371:4
349:2
341:2
337:3
333:2
284:γ
280:β
276:α
274:n
166:4
163:I
150:4
141:4
83:O
81:2
75:O
73:5
69:2
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