beidellite

beidellite

[bī′de‚līt]
(mineralogy)
A clay mineral of the montmorillonite group in which Si4+has been replaced by Al3+and in which there is virtual absence of Mg or Fe replacing Al.
References in periodicals archive ?
To distinguish montmorillonite from nantronite, saponite, and beidellite Li saturation and heat treatment was used (Moore and Reynolds, 1989).
Aluminous clay formations on Mars typically contain kaolinite, montmorillonite, beidellite, hydrous silica and, frequently, sulphates.
The uncured composition of claim 1, wherein the layered filler comprises at least one silicate selected from montmorillonite, nontronite, beidellite, bentonite, volkonskoite, laponite, hectorite, saponite, sauconite, magadite, kenyaite, stevensite, vermiculite, halloysite, aluminate oxides, hydrotalcite and mixtures thereof.
powder (9A): MMT and beidellite, and single clay in ME-100 powder (10A), the fluorohectorite.
1994), ripidolite and beidellite (Sondi and Pravdic 1996), and also the iron oxide goethite (Parfitt et al.
Bentonites are sedimentary rocks consisting clay minerals, such as montmorillonite (major constituent), beidellite, saponite, nontronite, hectorite, and nonclay minerals (3).
Among expanding 2:1 layer silicates, vermiculite and beidellite have a higher K fixation capacity than montmorillonite (Ross and Cline 1984).
5 cm and may form cavities at their upper contact which are lined with quartz, microcline, albite, needle-like black schorl, rare topaz and occasional pink beidellite.
1978, Beidellite crystallization from plagioclase and amphibole precursors: local and long-range equilibrium during weathering.
The clay present is smectitic and probably beidellite (Bray 1937).