colloidal-pertaining to colloid
colloid-[GR. kollodes, glutinous] 1. A type of solution.
There are 3 other types, but they don't apply to you.
alluminium=aluminum
aluminum hydroxide comes usually as aluminum hydroxide gel
USP. A white viscous suspension containing aluminum hydroxide and hydrated aluminum oxide; an antacid esp. useful in treatment of peptic ulcer.
On google: aluminum hydroxide gel - Results 1 - 10 of about 3,190.
You prob. could also call it colloid aluminum hydroxide suspension.
magnesium carbonate. USP. A bulky, white, odorless powder. Taken by mouth to neutralize acid in stomach.
leger or light in medical terms usually refers to "pale" as in color, or
also not heavy=light.
Light confirms: check here:http://www.yogichem.com/ligmg_car.htm
amorphous- being without definite form
precipitee-precipitate-1. A deposit separated from a suspension or solution by precipitation. There are also 2 others, but they don't apply.
hydrated-combined chemically with water, forming a hydrate
silica=silicon dioxide.
amorphous precipitated silica hydrate confirms here:http://ccinfoweb.ccohs.ca/cheminfo/browse/s.html

You may want to check also here:http://www.chempros.com/knowledgebase/albumin.htm