abrasive powder

The abrasive powder must be of a uniform particle size.

Emery is a very hard rock type used to make abrasive powder.

Abrasive powders made of these minerals were often used to carve into the material.

Other vegetal matter could be treated in a similar process and yield abrasive powders.

Emery has been mined for abrasive powder on Naxos since antiquity.

Silicon nitride (SiN) is used as an abrasive powder.

Never use silver dip or abrasive powders on gold and be sure to check that any commercial cleaner you are using is specifically designed for gold.

Gems were mostly cut by using abrasive powder from harder stones in conjunction with a hand-drill, probably often set in a lathe.

A mild abrasive powder could be scraped from the brick and used as a scouring powder on floors and other surfaces.

Scouring agents are mixtures of the usual cleaning chemicials (surfactants, water softeners) as well as abrasive powders.

Then we'd need some optical-quality glass to make Brewster windows, an abrasive powder for sawing and grinding, and components for the end-mirror cells.

The concreted soil and sediment was removed with brushes, small dental tools, pins, scalpels and fine jets of high-pressure air containing slightly abrasive powder.

For stains caused by dirt or grime, mix whiting, a mildly abrasive powder available at paint stores, with household chlorine bleach or 6 percent hydrogen peroxide solution.

It is also important to remove all traces of abrasive powders used in sample preparation, because they usually have a bright luminescence themselves and can be mistaken for heavy mineral grains in the sample.

In different industries it is called different names - abrasive powder, grit, copper slag grit, mineral grit, grinding grains, etc. - but its main use is still for surface blast-cleaning.

Redoubt Volcano continued to spew clouds of steam and gritty volcanic ash high into the sky today, forcing airlines to ground flights or route them around the abrasive powder for fear of engine damage.

The traditional method of producing the surface gages used an abrasive powder rubbed between the plates to remove the high spots, but it was Whitworth who contributed the refinement of replacing the grinding with hand scraping.

At home the father polished his sword blade with abrasive powder and took offense when his wife accidentally presented fish on the plate with their slit bellies facing away, a traditional gesture for those destined to commit hara-kiri.