Skip to main content Accessibility help

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

  • G. C. Parodi (a1), G. Della Ventura (a2), A. Mottana (a2) and M. Raudsepp (a3)


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), V3) = 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.



Hide All
Bonatti, S. (1959) Chevkinite, perrierite and epidotes. Amer. Mineral, 44, 115–37.
Bonatti, S. and Gottardi, G. (1950) Perrierite, nuovo minerale ritrovato nella sabbia di Nettuno (Roma). Rend. Ace. Lincei, s. 8, 9, 361–8.
Bonatti, S. and Gottardi, G. (1954) Nuovi dati sulla perrierite. Rend. Soc. It. Mineral. Petrol., 10, 208–25.
Bonatti, S. and Gottardi, G. (1966) Un caso di polimorfismo a strati in sorosilicati: perrierite e chevkinite. Per. Mineral, 35, 69–91.
Calvo, C. and Faggiani, R. (1974) A re-investigation of the crystal structures of chevkinite and perrierite. Amer. Mineral., 59, 1277–85.
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.
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.
Drake, M.J. and Weill, D.F. (1972) New rare earth element standards for electron microprobe analy-sis. Chem. Geol., 10, 179–81.
Galli, E. (1965) Affinamento della struttura della perrierite. Mineral. Petrol. Ada, 11, 39–48.
Gottardi, G. (1960) The crystal structure of perrierite. Amer. Mineral., 45, 1 — 14.
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.
Ito, J. and Arem, J.E. (1971) Chevkinite and perrierite; synthesis, crystal growth, and poly-morphism. Amer. Mineral, 56, 307–19.
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.
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.
McDowell, S.D. (1979): Chevkinite from the Little Chief Granite porphyry stock, California. Amer. Mineral, 64, 721–7.
Portnov, A.M. (1964) Strontium perrierite in the North Baikal region. Dokl Akad. Sci. URSS Earth Sci. Sec, 156, 118–20.
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.
Segalstad, T.V. and Larsen, A.O. (1978) Chevkinite and perrierite from the Oslo region, Norway. Amer. Mineral, 63, 499–505.
van Bergen, M.J. (1984) Perrierite in siliceous lavas from Mt. Amiata, central Italy. Mineral. Mag., 48, 553–6.
Washington, H.S. (1906) The Roman comagmatic region. Carnegie Inst. Wash. publ. No., 57, 199 p.
Young, E.J. and Powers, H.A. (1960) Chevkinite in volcanic ash. Amer. Mineral, 45, 875–81.


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

  • G. C. Parodi (a1), G. Della Ventura (a2), A. Mottana (a2) and M. Raudsepp (a3)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed