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Question:

What is quartz used for and why?

Please don't say quot;jewelry,quot; I already know. My task is to make a quot;mineral superhero.quot; My mineral is quartz and I need 5 superpowers to go with it. A lot of sites tell me it is used in clocks, glass, etc., but can someone tell me why?Thanks!

Answer:

There are several types of feldspars and several types of quartz, but all quartz will shatter into sharp jagged pieces if hit by a hammer; the pieces may look like broken glass. Feldspar has cleavage, which means when struck it breaks along smooth plane surfaces and not into jagged splinters. If you have samples of quartz feldspar you can try it and see; however, don't break up nice crystals of the minerals trying to do it - just use massive chunks. You will see the difference easily.
Both minerals are found in igneous rock. Feldspar- cleavage in two directions, sometimes forming stair-type formations. Fracture is uneven. Quartz-does not cleave but its fracture pattern is conchoidal (shell shape, like the scoop type shapes in a chipped windshield). Hope this helps! ;0)
This Site Might Help You. RE: How can cleavage and fracture be used to distinguish between quartz and feldspar? what do u think? there is no specific type of any of these minerals they are just the basic type.
Feldspar Cleavage
To keep it simple. Quartz does not have cleavage, it has concoidal fracture. Feldspars due have cleavage. Depending on the type of feldspar, the cleavage angles seem to run around 80-90 degrees. But if you're just trying to tell the two apart, if it fractures-quartz, cleaves-feldspar.

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