(aq) refers to aqueous, which means: in water. In your case, you have Ba(OH)2 in solution in water http://en.wikipedia.org/wiki/Aqueous. As for your search on Google, just try anything that works. Internet is a wild untamed land where order and rigorous classification do not apply. Wikipedia is usually a good start.
/bÉËsÉËlt/ , /ËbaesÉlt/ , /ËbÃ¦sÉlt/ , ËbaesÉËlt /ËbÃ¦sÉËlt/) or ËbeÉªsÉËlt is a common (extrusive) igneous volcanic rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of a planet. Or moon flood basalt describes the formation in a series of lava. basalt flowsy definition, basalt is an aphanitic igneous rock with less than 20% quartz and less than 10% feldspathoid by volume, and where at least 65% of the feldspar is in the form of plagioclase.
As a result, they are very dark in color, and usually appear as shades of black and black-green. Occasionally, some red or orange colors can appear in basalts and are due to that particular basalt containing rusting iron compounds. Basalt is an igneous rock that forms from the cooling and crystallization of magma. And usually, magma is formed from the melting of dark colored peridotite and pyroxene-rich rocks. There are some lighter colored basalts found, which form when a basalt magma contains a higher than normal amount of calcium or sodium minerals. Formation of Basalt. Basalt is an extrusive igneous rock.