These are quartz crystals and feldspar, so most sand in the world on the mainland is made of quartz crystal and feldspar. It's the erosion of granite rock.

While a quartz watch keeps time more accurately than the most finely crafted handmade mechanical Swiss watch, the value of a quartz watch has plummeted, while Swiss watches value has climbed into the stratosphere.

Furthermore, Saki poses unique therapeutic mud and Eupatoria has vast empty beaches with the purest sand.

The pattern of the circuitry for each chip is contained in a pattern etched in chrome on the reticle, which is a plate of transparent quartz.

Quartz glass, which is common in cuvettes, can withstand high temperatures and is transparent in certain parts of the electromagnetic spectrum.

The statistics of bad health are clear, very clear.

The National Bureau of Standards (now NIST) based the time standard of the United States on quartz clocks from late 1929 until the 1960s, when it changed to atomic clocks.

The findings are clear.

The values are clear.

Germanium differs from silicon in that the supply for germanium is limited by the availability of exploitable sources, while the supply of silicon is only limited by production capacity since silicon comes from ordinary sand or quartz.

In addition, the quartz watches also have integrated alarm, stopwatch, and timer functions that the other watches either lack, or that serve only as a design spoiling, hard to read effort to keep up with the competition.

The answer seemed a no brainer.

The message is clear.

My mandate is clear.

This is a historic fallacy.

America s policies were clear.

So the facts are clear.

This is an inherently political process.

The answer is not obvious.

The faces of the culprits is clear.

We have a clear timetable.

So the challenge is clear.

These principles are clear.

The gaps in the strategy are clear.

The inequities are obvious.

The problem is already evident.

The message was sobering.

Its results are equally clear.

There are clear steps that can be taken.

So there are clear positive outcomes.

The lessons of the recent past are clear.

The intention to harm was there for all the world to see it.

_Z_ This is obvious and fortunate.

This could not be clearer.

We must, however, reach several objectives and give clear signs of a true collective ambition.

There is now a clear need to establish clear vessels of connectivity from international commitments to national strategies, plans and actions on the ground.

This matters in part because cities with a clear ethos can better resist globalization s homogenizing tendencies.

There are obvious reasons for this.

The mechanics of debt restructuring are straightforward.

Turkey s universities are rising as well.

The implication of this was clear.

External help is needed.

With a tax, the costs are obvious.

The answer to the first is not obvious.

The longer term trends are clear.