An analysis of seawater shows that about 78% of the total solids are this one mineral
It's a fracture of the Earth's rocky outer shell where sections of rock slide against each other
Larger than dust, this particulate matter from volcanoes ranges from .01 to .16 inches in diameter
From the Latin for "flowing together", it's where 2 or more streams flow together to form one
This electrically charged layer of the atmosphere makes long-distance radio communication possible
In a mining lode, the gangue is the junk & this is the mineral with the good stuff in it
(Sarah of the Clue Crew) Venice is sinking because Italy is actually part of this continent's plate & it's sliding under Europe's plate
It's not just oil -- Saudi Arabia has reserves of over 200 trillion cubic feet of this
Seismographers use the difference in speed between P waves & S waves to locate this point