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26:
346:
solid solution, meionite has the largest cell dimension and very high thermal stability at high pressures. This indicates that meionite is one of the primary minerals in deep seated basic or intermediate magmatic processes. Meionite also breaks down to
385:
567:
Newton, Robert C.; Goldsmith, Julian R. (1975). "Stability of the scapolite meionite (3CaAl2Si2O2 · CaCO3) at high pressures and storage of CO2 in the deep crust".
649:
524:
Eugster, Hans P.; Prostka, Harold J.; Appleman, Daniel E. (14 September 1962). "Unit-Cell
Dimensions of Natural and Synthetic Scapolites".
335:. It was named by Rene Just Haüy after μειωυ, the Greek word for less, in reference to the less acute pyramidal form as compared to
683:
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100:
688:
31:
432:
635:
207:
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678:
673:
478:
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90:
152:
327:. Some samples may also contain a sulfate group. It was first discovered in 1801 on Mt Somma,
197:
187:
490:
397:
479:"Substitutional mechanisms, compositional trends and the end-member formulae of scapolite"
8:
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177:
502:
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30:
Meionite (scapolite) crystals (cross-shaped) in a quartz matrix, 7.2 × 4.0 × 3.0 cm.
615:
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533:
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268:
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510:
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410:
25:
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172:
Colorless, white, grey, pink, violet, blue, yellow, orange-brown, brown
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at high pressure, similar to the upper pressure limits of
477:
Teertstra, David K.; Sherriff, Barbara L. (1997-04-25).
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367:. This sets its occurrence to the crustal rocks.
660:
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636:
24:
569:Contributions to Mineralogy and Petrology
409:
661:
560:
602:
386:"IMA–CNMNC approved mineral symbols"
383:
159:c = 7.571(1) Å, Z = 2
517:
13:
14:
700:
606:
32:Worcester County, Massachusetts
614:This article about a specific
470:
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1:
503:10.1016/S0009-2541(96)00146-5
370:
622:. You can help Knowledge by
538:10.1126/science.137.3533.853
192:Irregular/uneven, conchoidal
7:
182:Distinct/good on {100}{110}
10:
705:
684:Minerals in space group 87
601:
225:Vitreous, resinous, pearly
307:group with the formula Ca
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342:As an end-member of the
689:Silicate mineral stubs
466:Handbook of Mineralogy
390:Mineralogical Magazine
157:a = 12.179(1) Å,
101:Strunz classification
679:Tetragonal minerals
495:1997ChGeo.136..233T
411:10.1180/mgm.2021.43
402:2021MinM...85..291W
384:Warr, L.N. (2021).
245:Transparent, opaque
581:10.1007/BF00371078
260:Optical properties
127:Dipyramidal (4/m)
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532:(3533): 853–854.
303:belonging to the
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674:Calcium minerals
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616:silicate mineral
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483:Chemical Geology
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269:Refractive index
251:Specific gravity
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63:
62:(repeating unit)
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52:Scapolite group
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12:
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669:Tectosilicates
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489:(3): 233–260.
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455:Webmineral.com
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396:(3): 291–320.
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283:0.024 to 0.037
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273:1.556 to 1.600
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164:Identification
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111:Crystal system
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301:tectosilicate
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279:Birefringence
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123:Crystal class
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49:Tectosilicate
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624:expanding it
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575:(1): 49–62.
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349:grossularite
341:
296:
295:
263:Uniaxial (−)
145:
337:vesuvianite
241:Diaphaneity
141:Space group
663:Categories
444:Mindat.org
371:References
288:References
208:Mohs scale
132:H-M symbol
116:Tetragonal
91:IMA symbol
589:129389988
511:0009-2541
420:235729616
365:anorthite
344:scapolite
305:scapolite
255:2.74–2.78
153:Unit cell
546:17787337
329:Vesuvius
297:Meionite
211:hardness
198:Tenacity
188:Fracture
178:Cleavage
45:Category
19:Meionite
554:2289057
526:Science
491:Bibcode
398:Bibcode
361:calcite
353:kyanite
202:Brittle
105:9.FB.15
58:Formula
40:General
587:
552:
544:
509:
418:
357:quartz
231:Streak
221:Luster
130:(same
618:is a
585:S2CID
550:S2CID
416:S2CID
333:Italy
299:is a
235:White
169:Color
620:stub
542:PMID
507:ISSN
146:I4/m
577:doi
534:doi
530:137
499:doi
487:136
406:doi
215:5–6
665::
583:.
573:49
571:.
548:.
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394:85
392:.
388:.
359:+
355:+
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339:.
331:,
323:CO
321:24
315:Si
311:Al
95:Me
82:CO
80:24
74:Si
70:Al
66:Ca
651:e
644:t
637:v
626:.
591:.
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536::
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501::
493::
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408::
400::
325:3
319:O
317:6
313:6
309:4
134:)
84:3
78:O
76:6
72:6
68:4
34:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
