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which also forms a series with phillipsite-Ca. Crystals of phillipsite are, however, usually smaller and more transparent and glassy than those of harmotome. Spherical groups with a radially fibrous structure and bristled with crystals on the surface are not uncommon. The
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It has been discovered that the volcanic ash that Romans employed in the mix for construction of harbor piers and sea walls contained phillipsite, and that an interaction with sea water actually causes crystalline aluminous
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388:. Small crystals of recent formation have been observed in the masonry of the hot baths at Plombires and Bourbonne-les-Bains, in
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552:"Phillipsite and Al-tobermorite mineral cements produced through low-temperature water-rock reactions in Roman marine concrete"
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Jackson, Marie D.; Mulcahy, Sean R.; Chen, Heng; Li, Yao; Li, Qinfei; Cappelletti, Piergiulio; Wenk, Hans-Rudolf (2017).
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structures in the mortar to expand and strengthen, making the material substantially more durable than modern concrete.
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Sheppard, Richard A; Fitzpatrick, Joan J (1989), "Phillipsite from silicic tuffs in saline, alkaline-lake deposits",
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317:. The members of the series are phillipsite-K, phillipsite-Na and phillipsite-Ca. The crystals are
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Ancient Romans made world’s ‘most durable’ concrete. We might use it to stop rising seas
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Phillipsite is a mineral of secondary origin, and occurs with other zeolites in the
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617:. Vol. 21 (11th ed.). Cambridge University Press. p. 408.
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346:. French authors use the name Christianite (after
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325:are known, these being exactly like twins of
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338:is 2.2. The species was established by
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427:List of minerals named after people
654:. You can help Knowledge (XXG) by
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646:This article about a specific
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321:, but only complex cruciform
16:Minerals in the zeolite group
376:in County Antrim, and near
285:silicate, approximating to
269:is a mineral series of the
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731:Minerals in space group 11
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505:10.1346/CCMN.1989.0370307
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577:10.2138/am-2017-5993CCBY
384:; and in Lencitite near
342:in 1825 and named after
614:Encyclopædia Britannica
484:Clays and Clay Minerals
736:Silicate mineral stubs
599:Leonard James Spencer
556:American Mineralogist
368:: for example in the
96:Strunz classification
396:were dredged by the
726:Monoclinic minerals
604:"Phillipsite"
568:2017AmMin.102.1435J
496:1989CCM....37..243S
716:Aluminium minerals
711:Potassium minerals
629:Structure type PHI
273:group; a hydrated
253:60 to 90° measured
208:Optical properties
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243:δ = 0.003 – 0.009
229:= 1.484 – 1.511 n
225:= 1.483 – 1.505 n
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701:Calcium minerals
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648:silicate mineral
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562:(7): 1435–1450.
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422:List of minerals
394:pelagic red clay
344:William Phillips
336:specific gravity
334:is 4.5, and the
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217:Refractive index
199:Specific gravity
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122:Prismatic (2/m)
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56:(repeating unit)
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233:= 1.486 – 1.514
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490:(3): 243–247,
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152:Identification
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656:expanding it
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361:cavities of
359:amygdaloidal
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467:Phillipsite
410:tobermorite
340:Armand Lévy
267:Phillipsite
136:Space group
22:Phillipsite
695:Categories
471:Mindat.org
438:References
398:Challenger
319:monoclinic
258:References
166:Mohs scale
127:H-M symbol
111:Monoclinic
586:0003-004X
378:Melbourne
327:harmotome
311:·12H
283:aluminium
275:potassium
85:·12H
721:Zeolites
601:(1911).
416:See also
382:Victoria
249:2V angle
183:Vitreous
169:hardness
45:Zeolites
41:Category
611:(ed.).
564:Bibcode
492:Bibcode
372:of the
352:Denmark
279:calcium
271:zeolite
173:4 – 4.5
100:9.GC.10
52:Formula
36:General
584:
390:France
370:basalt
287:(Ca,Na
189:Streak
179:Luster
125:(same
61:(Ca,Na
650:is a
607:. In
363:mafic
323:twins
193:White
160:White
157:Color
652:stub
582:ISSN
386:Rome
281:and
572:doi
560:102
500:doi
469:on
380:in
350:of
203:2.2
697::
580:.
570:.
558:.
554:.
520:,
498:,
488:37
486:,
457:^
404:.
309:32
305:10
303:Si
299:Al
291:,K
277:,
147:/m
83:32
79:10
77:Si
73:Al
65:,K
683:e
676:t
669:v
658:.
588:.
574::
566::
502::
494::
315:O
313:2
307:O
301:6
297:3
295:)
293:2
289:2
231:γ
227:β
223:α
221:n
145:1
143:2
141:P
129:)
89:O
87:2
81:O
75:6
71:3
69:)
67:2
63:2
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