| The number of modified gibbsite units therefore determines the diameter of the threadlike tubes. |
| Its structure is predicted from the known structures of nordstrandite and gibbsite on the basis of similarities in X-ray precession photographs in two zones. |
| The soils that are generally designated under the very vague term of laterite are rich in Iron and Aluminium sesquioxides such as goethite, hematite, gibbsite, and boemite. |
| The infrared absorption spectum of doyleite is similar to but simpler than those of gibbsite and nordstrandite. |
| It should be noted that ultraviolet fluorescence is not unknown in gibbsite. |
| If fine particle-size gibbsite was used, the yield of boehmite decreased and the yield of the poorly crystallized phase increased in all the media. |
