Abrasive material

Usage examples of pumice.

Ores of Lead -- Geographical Distribution of the Lead Industry -- Chemical and Physical Properties of Lead -- Alloys of Lead -- Compounds of Lead -- Dressing of Lead Ores -- Smelting of Lead Ores -- Smelting in the Scotch or American Ore-hearth -- Smelting in the Shaft or Blast Furnace -- Condensation of Lead Fume -- Desilverisation, or the Separation of Silver from Argentiferous Lead -- Cupellation -- The Manufacture of Lead Pipes and Sheets -- Protoxide of Lead -- Litharge and Massicot -- Red Lead or Minium -- Lead Poisoning -- Lead Substitutes -- Zinc and its Compounds -- Pumice Stone -- Drying Oils and Siccatives -- Oil of Turpentine Resin -- Classification of Mineral Pigments -- Analysis of Raw and Finished Products -- Tables -- Index.

Pumice and trachyte are the most common rocks around this mountain, and these are augitic or porphyroid.

I rubbed it with pumice stone, sand, and ochre, and finally I succeeded in imparting to my production such a queer, old-fashioned shape that I could not help laughing in looking at my work.

Soon, however, lapilli began to come down, then occasional bombs of pumice weighing many pounds.

Progressively deeper levels within the magma chamber were tapped, until after about seven hours the more mafic grey pumice was reached.

The work of effacing this ink was accomplished by moistening the parchment with a weak alkaline solution and by rubbing it with pumice stone.

Then he would dip the tapered point into the ink-horn and, magically, begin inscribing the chalked and pumiced parchment spread on the desk before him.

The catch about going to the pumice was the difference in traction between the center lane and the pumiced surface, which resembled a strip of frozen sponge.

Abreast of Cotopaxi the road cuts through high hills of fine pumice inter-stratified with black earth, and rapidly ascends till it reaches Tiupullo, eleven thousand five hundred feet above the sea.

Convection carried incandescent gas and pumice clasts to a height of 28 km.

Convection carried incandescant gas and pumice clasts to a height of 28 km.

The coarser part of this material, including much pumice, fell upon the seas in the vicinity, where, owing to its lightness, it was free to drift in the marine currents far and wide throughout the oceanic realm.

From the top of the pass beyond the lakes there is a grand view of the volcano in all its nakedness, with its lava beds and fields of pumice, with the lakes of Onuma, Konuma, and Ginsainoma, lying in the forests at its feet, and from the top of another hill there is a remarkable view of windy Hakodate, with its headland looking like Gibraltar.

Mufgar of the Orisha clan squatted on bony legs and removed four pumice rocks from a leather pouch at his side.

An early experiment with public housing for war veterans left its shoreline marred by cul-de-sac housing developments the color of pumice, each one a collection of four buildings housing sixteen units and curved in on each other in a horseshoe, skeletal metal clothesline structures rising out of pools of rust in the cracked tar.