formed by the decomposition of volcanic ash deposited millions. of years ago in an ancient inland seaway. It is widely used as a. drilling mud for oil and natural gas wells; other uses include cat. litter, cosmetics, a binding agent in animal feed, and a found-. ry-sand bond in iron and steel foundries.
Best Answer: No, there is no need to cover it. Ham is already cooked, so you just have to heat it thru. Cook it in the oven at 250 for about an hour. It will not brown at that temperature. You don't have to cover the ham especially if you use a glaze, but if you want you could also use a deep enough pan for the ham and flip a cookie sheet over the top to act as a lid. NO it is not required at all and it will get noice and crusty just as ppl have said keep the temp low and dont overcook it.
1 After ham has completed roasting, take ham out of oven and let stand 15 minutes before slicing. 2  Ham will continue to bake when out of the oven and letting ham stand for 15 minutes makes it easier to carve.3  Do not partially cook pork and then store in refrigerator to use later. 4  It must be cooked until done. To avoid drying out ham, cook slowly at 325ÂºF. 2  Allow 20 to 30 minutes per pound for ham that has not been precooked (follow directions on label for precooked hams). 3  Begin roasting ham by placing fat side up, the melting fat will baste your ham.