Patchy texture, with dickite
and pyrophyllite was also observed and mapped on surface 300 meters to the north of drill hole FMSC18006 and remains a compelling target for future testing.
It is a moderately pure clay that mostly consists of kaolinite and other clay minerals, including anauxite, halloysite, dickite
, and nacrite.
The geochemical analysis (XRD) finds that quartz, dolomite and albite are the major mineral constituents, whereas aluminium, magnesium, sodium, palygorskite and dickite
are minor constituents.
In Figure 5, there are particles with crystalline habit of the subhedral to euhedral type with well-defined plans; these could correspond to kaolinite (Figure 5(a)), dickite
(Figure 5(b)), and illite (Figure 5(c)) in aggregate form.
The minerals of the kaolin group comprises kaolinite, dickite
, nacrite, and halloysite with kaolinite being the most common (Murray, 2007).
(21.) Frost, RL, "Fourier Transform Raman Spectroscopy of Kaolinite, Dickite
and Halloysite." Clays Clay Miner., 43 (2) 191-195 (1995)
H image encloses the spectral information related to Al-OH bearing mineral assemblages, namely, kaolinite, montmorillonite, dickite
, pyrophilite and clay minerals group.
(1989) argue that the FT-IR spectrum as described above could be an indicative of the existence of dickite
and nacrite instead of a disordered kaolinite.
The primary raw material used in this study was a Colombian granulated blast furnace slag (GBFS) from the factory Acerias Paz del Rio, and metakaolin produced in the laboratory by calcination of Colombian kaolin containing minor traces of quartz and dickite
. Chemical composition along with physical properties of these raw materials are given elsewhere (Bernal et al.
In lithofacies-1 (laterite / bauxite / kaolinite) the goethite, kaolinite, boehmite, gibbsite and dickite
minerals may owe to insitu leaching of older rocks.
Kaolinite, illite, quartz, microcline, dickite
, mordenite, gamma alumina and iron rich minerals, such as pyrite and hematite, constituted the mineral makeup.
Okzhetpes) and reported low-temperature phases such as kaolinite and dickite
, are used to support such an interpretation.