In order to explain the wetting characteristics of kaolinite, specifically the wetting of the silica tetrahedral face, domain inversion similar to that observed for antigorite might be expected, where the alumina octahedral domains may be responsible for the hydrophilic character of kaolinite.
For example, in this regard, the antigorite case can be considered in greater detail.
One observation is clear, however, the magnesium octahedral layer has a greater effect on the electrokinetic behaviour of antigorite than the aluminum octahedral layer has on the electrokinetic behaviour of kaolinite, see Figures 7 and 8.
Efforts should also be made to further examine the polarity reversal phenomenon observed for antigorite, to determine if such phenomenon occurs in the case of kaolinite.
Microstructures of Chrysotile and Antigorite by High-Resolution Electron Microscopy," Can.
360-9, 161) Antigorite Absence 35 1 Presence 47 20.
We found three categories of fibers: short (< 20 [micro]m) and thin (< 1 [micro]m) tremolite fibers; long (> 100 [micro]m) and flexible chrysotile fibers; and sheaves of fine fibers (< 1 [micro]m), splintering from the edges of antigorite laths.
We also found significant increased risks (in descending order) for the presence of antigorite, surface of serpentinite outcrops, the number of serpentinite quarries in a 20-km radius, proximity to the peridotite, proximity to the nearest quarry of serpentinite, and presence of chrysotile.
Statistically significant associations were also observed for the presence of antigorite, the distance to the peridotite massif, the number of serpentinite quarries, the surface area of serpentinite, the mine index, and the presence of chrysotile.
This transaction is subject to a series of conditions in favour of the Company including appropriate confirmations and approvals from the Ontario Ministry of Northern Development and Mines, independent assays and testing reports to establish the composition, projected quantity and legally free chrysotile content of the antigorite deposits, verification of immediate rail and road access and the approval of the Company's board of directors.
If these deposits prove suitable, Hedman will not only have intensified its monopoly on this unique antigorite ore, but will vastly increase reserves to further legitimize and broaden future business and joint venture opportunities.
It then became necessary to reconsider the entire Horwood Lake deposit opportunity to determine if some commercial use could be established for the antigorite and, by extension, the facility at Matheson.
Extensive and targeted independent testing in early 2004 demonstrated that Hedman's antigorite deposits at Horwood Lake were unusual.
Additional research directed Hedman's new management team to the possibility of introducing fibre to the antigorite to solve this problem.
Hedman's new management concluded that if its antigorite could be fiberized, and based on its melt point being measurably higher than basalt, the result could be an enviable product that would equate with basalt/ceramic composites at a substantially lower cost, as well as offering its own specialized uses and applications.