-It comes in a variety of colors, and is often found naturally with other precious gemstones (including onyx, agate, and jasper).
-The name comes from the German word quarz, meaning hard, or firm.
-It has a high resistance to water erosion, which is why it's commonly found intact in streams and rivers.
-Roman naturalist Pliny the Elder originally believed that quartz was water ice that had been permanently frozen over great lengths of time (the word crystal comes from the Greek for ice, κρύσταλλος).
-Quartz produces an electric currect when put under mechanical strain, making it piezoelectric (Other piezoelectric materials include certain ceramics, DNA, bone, and various proteins). This is why it's sometimes used in watches.
boq
the thing that makes quartz uniqe is the colouring and the size.
they feed on the grains.
liangqin is a dog.
Each mineral has a unique composition and definite set of properties. Often an alternate may be found for some of these properties. For example there are many piezoelectric materials that will substitute for quartz in some applications.
that he is unique and do not care what people think of him
She is deathly afraid of rats.
there arent any its boring and flat
I dont know i need help foo
aftes quartz undergo high temperature it make it difficult to break and it is the only durable rock use for construction and one thing about quartz is that it is not susceptible to chemical weathering.
I have no clue I'm thinking the same thing..
he served in the army and got in the prisioner of war