Guest
Race Result Details |
| Racer | markos (mfguru) |
| Race Number | 158 |
| Date | Sat, 28 Jan 2017 11:40:06 |
| Speed |
62 WPM
 Try to beat?
|
| Accuracy | 91% |
| Rank | 1st place (out of 3) |
| Opponents | adarsh28singh (2nd place) |
Text typed:
|
Quartz is the commonest of the crystalline forms of silicon dioxide. It crystallizes in the hexagonal system, most usually in the form of a six-sided prism surmounted by a six-sided pyramid. It is also frequently found as irregular masses, or as aggregates of small crystals and crystalline grains. It possesses no regular cleavage, but breaks with an irregular and often curved fracture.
— (book)
by R.H. Rastall, M.A.
(see stats)
|