Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-03T08:26:18.407Z Has data issue: false hasContentIssue false
  • English
  • Français

Zr-rich non metamict perrierite-(Ce) from holocrystalline ejecta in the Sabatini volcanic complex (Latium, Italy)

Published online by Cambridge University Press:  05 July 2018

G. C. Parodi ,
G. Della Ventura ,
A. Mottana  and
M. Raudsepp
G. C. Parodi
Affiliation:
Museo di Mineralogia, Università di Roma ‘La Sapienza’, Piazzale Aldo Moro 5, 1-00185, Roma, Italy
G. Della Ventura
Affiliation:
Dip. Scienze Geologiche, Terza Università di Roma, Via Ostiense 169, I-00151, Roma, Italy
A. Mottana
Affiliation:
Dip. Scienze Geologiche, Terza Università di Roma, Via Ostiense 169, I-00151, Roma, Italy
M. Raudsepp
Affiliation:
Dept. of Geological Sciences, University of U.B.C., 6339 Stores Road, V6T 1Z4, Vancouver, Canada
Get access Rights & Permissions [Opens in a new window]

Abstract

This paper reports the first in-situ finding of perrierite-(Ce) in Latium. The mineral occurs as brownish-red, transparent, well-developed, euhedral, prismatic crystals inside the miarolitic cavities of a holocrystalline ejectum from La Mola, Monti dell'Anguillara district, Sabatini volcanic complex.

The cell parameters (from Gandolfi film) are (in Å): a = 13.629(9), b = 5.727(1), c = 11.715(6), β(°) = 113.74(2), V(Å3) = 835.5(9). The crystal-chemical formula, based on microprobe analysis of one grain, is:

This perrierite is the most Zr-rich described so far. The entry of Zr in the C site of the structure is related to the substitution of large amounts of Ca in the A site, according to the charge balancing relationship:

The genesis of perrierite-(Ce) from La Mola is linked to late pneumatolitic-pegmatitic hypabyssal stages of the regional volcanic activity.

Keywords

Perrierite-(Ce)SabatiniLatiumItalyTi-REE-silicatezirconiumcrystal-chemistrycell parameters
Type
Mineralogy
Information
Mineralogical Magazine , Volume 58 , Issue 393 , December 1994 , pp. 607 - 613
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1994

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bonatti, S. (1959) Chevkinite, perrierite and epidotes. Amer. Mineral, 44, 115–37.Google Scholar
Bonatti, S. and Gottardi, G. (1950) Perrierite, nuovo minerale ritrovato nella sabbia di Nettuno (Roma). Rend. Ace. Lincei, s. 8, 9, 361–8.Google Scholar
Bonatti, S. and Gottardi, G. (1954) Nuovi dati sulla perrierite. Rend. Soc. It. Mineral. Petrol., 10, 208–25.Google Scholar
Bonatti, S. and Gottardi, G. (1966) Un caso di polimorfismo a strati in sorosilicati: perrierite e chevkinite. Per. Mineral, 35, 69–91.Google Scholar
Calvo, C. and Faggiani, R. (1974) A re-investigation of the crystal structures of chevkinite and perrierite. Amer. Mineral., 59, 1277–85.Google Scholar
Delia Ventura, G., Di Lisa, G.A., Marcelli, M., Mottana, A. and Paris, E. (1991) Composition and structural state of alkali feldspars from ejecta in the Roman potassic province, Italy; petrologi-cal implications. Eur. J. Mineral, 3, 411–24.Google Scholar
Delia Ventura, G., Parodi, G.C., Mottana, A. and Chaussidon, M. (1993) Peprosiite-(Ce), a new mineral from Campagnano (Italy): the first anhydrous rare-earth-element borate. Eur. J. Mineral, 5, 53–8.CrossRefGoogle Scholar
Drake, M.J. and Weill, D.F. (1972) New rare earth element standards for electron microprobe analy-sis. Chem. Geol., 10, 179–81.CrossRefGoogle Scholar
Galli, E. (1965) Affinamento della struttura della perrierite. Mineral. Petrol. Ada, 11, 39–48.Google Scholar
Gottardi, G. (1960) The crystal structure of perrierite. Amer. Mineral., 45, 1 — 14.Google Scholar
Haggerty, S.E. and Mariano, A.N. (1983) Strontian-loparite and strontio-chevkinite: two new minerals in rheomorphic fenites from the Parana Basin carbonatites, South America. Contrib. Mineral. Petrol, 84, 365–81.CrossRefGoogle Scholar
Ito, J. and Arem, J.E. (1971) Chevkinite and perrierite; synthesis, crystal growth, and poly-morphism. Amer. Mineral, 56, 307–19.Google Scholar
Jaffe, H.W., Evans, H.T., Jr. and Chapman, R.W. (1956) Occurrence and age of chevkinite from the Devil's Slide fayalite-quartz syenite near Stark, New Hampshire. Amer. Mineral, 41, 474–87.Google Scholar
Mazzuoli, R. and Pratesi, M. (1963) Rilevamento e studio chimico-petrografico delle rocce vulcaniche del Monte Amiata. Atti Soc. Tosc. Sc. Nat., Mem., 70, 355–429.Google Scholar
McDowell, S.D. (1979): Chevkinite from the Little Chief Granite porphyry stock, California. Amer. Mineral, 64, 721–7.Google Scholar
Portnov, A.M. (1964) Strontium perrierite in the North Baikal region. Dokl Akad. Sci. URSS Earth Sci. Sec, 156, 118–20.Google Scholar
Pouchou, J.L. and Pichoir, F. (1984) A new model for quantitative X-ray microanalysis. Part I: Applica-tion to the analysis of homogeneous samples. Rech. Aerosp., 3, 13–38.Google Scholar
Segalstad, T.V. and Larsen, A.O. (1978) Chevkinite and perrierite from the Oslo region, Norway. Amer. Mineral, 63, 499–505.Google Scholar
van Bergen, M.J. (1984) Perrierite in siliceous lavas from Mt. Amiata, central Italy. Mineral. Mag., 48, 553–6.CrossRefGoogle Scholar
Washington, H.S. (1906) The Roman comagmatic region. Carnegie Inst. Wash. publ. No., 57, 199 p.Google Scholar
Young, E.J. and Powers, H.A. (1960) Chevkinite in volcanic ash. Amer. Mineral, 45, 875–81.Google Scholar