When a small proportion of finely ground bentonite clay is added to hard sand and wetted, the clay binds the sand particles into a moldable aggregate known as green sand used for making molds in sand casting.
32.
"Didn't you wash it ? " my guests asked, their faces masks of horror as the Sand De-Lites ( which I referred to as the Wall of Fire ) shed little piles of green sand onto the table.
33.
After the specimen has been prepared inside the specimen tube, the specimen can be used for various standard sand tests such as the permeability test, the green sand compression test, the shear test, or other standard foundry tests.
34.
Air-set molds can produce castings with smoother surfaces than coarse green sand but this method is primarily chosen when deep narrow pockets in the pattern are necessary, due to the expense of the plastic used in the process.
35.
The species was originally described by Paul Pelseneer in an 1886 article in the " Bulletin du Mus�e royal d'histoire naturelle de Belgique ", entitled " " " " ( " Report of a crustacean from the green sands of Grandpr?" ).
36.
Pereda-Superbiola & Barrett considered it possible that the discovery had in fact not been made in the Cambridge Green Sand but in the, also Albian, Upper Gault Clay, because the skeletal elements seemed to have belonged to a single individual which might preclude a provenance from the very reworked marine Green Sand deposits . " Anoplosaurus curtonotus " was by them considered a possibly valid taxon.
37.
Pereda-Superbiola & Barrett considered it possible that the discovery had in fact not been made in the Cambridge Green Sand but in the, also Albian, Upper Gault Clay, because the skeletal elements seemed to have belonged to a single individual which might preclude a provenance from the very reworked marine Green Sand deposits . " Anoplosaurus curtonotus " was by them considered a possibly valid taxon.
