دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a rock of precipitated silica whose crystalline structure is not easily discemible and that fractures conchoidally (like glass). Flint, jasper, and chat are forms of chert.

a hard, silicate sedimentary rock. Similar to flint, but with less ordered structure. A cryptocrystalline form of quartz.

adj: having an affinity for the suspending medium, such as bentonite in water. lyophilic colloid n: a colloid that is not easily precipitated from a solution and is readily dispersible after the precipitation by an addition of the solvent. See colloid.

n: a colloid that is readily precipitated from a solution and cannot be redispersed by an addition of the solution. See colloid

n: an ovoid, sandlike particle that is formed when calcite accretes on a smaller particle.

spheres of calcium carbonate precipitated from connate water.

a solid material that drops out of an over saturated solution. Usually driven by an upset of equilibrium.