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fandomhigh2008-11-19 06:52 am
offthelisthero.livejournal.com) wrote in fandomhigh2008-11-19 06:52 am
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Physics with trees, Period 1, 19 Nov '08
"Minerals," said Mohinder, from behind a selection of rocks. "A structured, inorganic compound, like so much else, often cannot be identified on sight alone. Quartz," he said, holding up a pink rock.
"More quartz." He switched out for a white piece, then purple, then black. "More- well, enough example perhaps. Small impurities can have a drastic effect; so we need an alternative. Several, in fact."
"Firstly, in it melts at room temperature, it's probably snow. For other crystals there are tests of hardness, fracture patterns, gravity and effervesence - its reaction to acid." Mohinder went into more detail, demonstrating the tests on a piece of calcite. He flipped up his safety goggles, adding, "Try to avoid the more subjective tests - you don't know the history of the rocks before you've licked it. But you have a variety of samples to start testing."
[OCD is up!]
"More quartz." He switched out for a white piece, then purple, then black. "More- well, enough example perhaps. Small impurities can have a drastic effect; so we need an alternative. Several, in fact."
"Firstly, in it melts at room temperature, it's probably snow. For other crystals there are tests of hardness, fracture patterns, gravity and effervesence - its reaction to acid." Mohinder went into more detail, demonstrating the tests on a piece of calcite. He flipped up his safety goggles, adding, "Try to avoid the more subjective tests - you don't know the history of the rocks before you've licked it. But you have a variety of samples to start testing."
[OCD is up!]
Sign In 11 (PWT)
During the Lecture 11 (PWT)
Rocking out 11 (PWT)
at the bottom of the page, acids, tools of various hardness and things to break them with.Talk to Mohinder 11 (PWT)
OOC 11 (PWT)
Re: Sign In 11 (PWT)
Re: Rocking out 11 (PWT)
Re: Sign In 11 (PWT)
Re: Rocking out 11 (PWT)