...light penetrating the stone is absorbed, and the effect upon the eye is that of a more or less mmplete absence of light, or darkness. Obviously, then, the...cases where it is wished, as in a monument, to have a jiolished die, surrounded by a margin of hammered work to give contrast. The ordinary granites, while...

...reflecting surfaces are removed, the light penetrating the stone is ahsorhed, and the effect ujion the eye is that of a more or less complete absence...surrounded by a margin of hammered work to give contrast. The ordinary granites, while taking a high polish, do not afford such strong contrasts between hammered...

...light penetrating the stone is absorbed, and the effect upon the eye is that of a more or less compiete absence of light, or darkness. Obviously, then, the...surrounded by a margin of hammered work to give contrast. The ordinary granites, while taking a high polish, do not afford such strong contrasts between hammered...

...reflecting surfaces are removed, the light penetrating the stone is absorbed, and the effect u|>on the eye is that of a more or less complete absence...greater the abundance of dark minerals, the greater will he the contrast between hammered and polished surfaces. This is a matter worthy of consideration in...

...physical, chemical, and economic properties ol building stones: Maryland Oeol. Survey, vol. 2, 1898, p. 64. greater will be the contrast between hammered and...surrounded by a margin of hammered work to give contrast. The ordinary granites, while taking a high polish, do not afford such strong contrasts between hammered...

...physical, chemical, and economic properties ot building stones: Maryland Geol. Survey, vol. 2, 1898, p. 64. greater will be the contrast between hammered and...surrounded by a margin of hammered work to give contrast. The ordinary granites, while taking a high polish, do not afford such strong contrasts between hammered...

...chief economic importance. Merrill * has explained the cause of these contrasts very satisfactorily: The impact of the hammer breaks up the granules on...surrounded by a margin of hammered work to give contrast. The abundance of black mineral and the transparency of the quartz and plagioclase feldspar in the granite...

...chief economic importance. Merrill * has explained the cause of these contrasts very satisfactorily: The impact of the hammer breaks up the granules on...surrounded by a margin of hammered work to give contrast. The abundance of black mineral and the transparency of the quartz and plagioclase feldspar in the granite...

...are removed, the light penetrating the stone is absorbed, and the effect ui»n the eye is that of n more or less complete absence of light, or darkness....greater the abundance of dark minerals, the greater will Iw the contrast between hammered and polished surfaces. This is a matter worthy of consideration in...