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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)
Re: Sign In 11 (PWT)
Re: 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.Re: Rocking out 11 (PWT)
Re: Rocking out 11 (PWT)
Talk to Mohinder 11 (PWT)
OOC 11 (PWT)