European Journal of Mineralogy, 1999, V 11, N 5.

N.L. Ross, J.R. Sowerby (791-801)
High-pressure crystal-field spectra of single-crystal clinoferrosilite

B. Wunder, M. Andrut, R. Wirth (803-813)
High-pressure synthesis and properties of OH-rich topaz

G.L. Hovis, J. Roux (815-827)
Thermodynamics of excess silicon in nepheline and kalsilite crystalline 
solutions

S.U. Aja, J.S. Small (829-842)
The solubility of a low-Fe clinochlore between 25 and 175°C and
Pv = PH2O

G. Della Ventura, C.T. Williams, R. Cabella, R. Oberti, E. Caprilli, F.
Bellatreccia (843-854)
Britholite-hellandite intergrowths and associated REE minerals 
from the alkali-syenitic ejecta of the Vico volcanic complex 
(Latium, Italy): petrological implications bearing on
REE mobility in volcanic systems

F. Scordari, E. Schingaro, G. Pedrazzi (855-869)
Crystal chemistry of melanites from Mt. Vulture (Southern Italy)

A.R. Chakhmouradian, M.A. Sitnikova (871-878)
Radioactive minerals from murmanite-lorenzenite tinguaite at 
Mt. Selsurt, Lovozero complex, Kola Peninsula

J. Brugger, M. Bonin, K.J. Schenk, N. Meisser, P. Berlepsch, A. Ragu (879-890)
Description and crystal structure of nabiasite,
BaMn9[(V,As)O4]6(OH)2, a
new mineral from the Central Pyrénées (France)

N. Meisser, P. Thelin, P.J. Chiappero, C. Maurel (891-897)
Laforêtite, AgInS2, a new mineral of the chalcopyrite group
from the Montgros mine, Haute-Loire, France

M. Ostrooumov, E. Fritsch, B. Lasnier, S. Lefrant (899-908)
Spectres Raman des opales: aspect diagnostique et aide à la
classification (in French)