Australian Politics Forum - Can you identify these rocks?

Sir Grappler Truth Teller OAM Gold Member Offline Australian Politics Posts: 90098 Proud Old White Australian Man Gender:	Re: Can you identify these rocks? Reply #135 - May 7^th, 2025 at 6:51pm Na - a degree in Palesintotortology.... Those are Smiths nuts on the left and Monk's on the right..
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Sir Grappler Truth Teller OAM Gold Member Offline Australian Politics Posts: 90098 Proud Old White Australian Man Gender:	Re: Can you identify these rocks? Reply #136 - May 7^th, 2025 at 6:53pm Jovial Monk wrote on May 7^th, 2025 at 6:37pm: So what does geology study, high school dropout? Heard of the theory of Continental Drift? That's when Europeans wander off the beaten track and lose all reason...... there is another class called the Continental Drips - but that is a different thing.
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 51474 Gender:	Re: Can you identify these rocks? Reply #137 - May 7^th, 2025 at 6:56pm Alfred Wegener—what was he famous for? Even the high school dropout can google this.
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Bobby.

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Re: Can you identify these rocks?
Reply #138 - May 7^th, 2025 at 7:08pm

Yes - example - we could have had a good story of how quartz geodes form and
how they obtain their different colours etc but we got nothing. Embarrassed

Where does that beautiful purple colour come from?

OK - so I will answer it.

https://naturalhistory.si.edu/explore/collections/geogallery/10002933

Small amounts of various impurity atoms can produce a range of colors in quartz.
Amethyst, the most valuable gem variety of quartz, is purple.
Just a few atoms of iron replacing some of the silicon,
combined with natural radiation, will cause the purple color.

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Jovial Monk Gold Member Offline Dogs not cats! Posts: 51474 Gender:	Re: Can you identify these rocks? Reply #139 - May 7^th, 2025 at 7:26pm What theory did Alfred Wegener develop and publish? Easy to Google, even for high school dropouts.
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 51474 Gender:	Re: Can you identify these rocks? Reply #140 - May 7^th, 2025 at 7:30pm How did Wegener fit together his supercontinent from present day continents?
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Bobby.

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Re: Can you identify these rocks?
Reply #141 - May 7^th, 2025 at 7:43pm

https://www.geologypage.com/2020/06/purple-amethyst-what-causes-the-purple-color...

Purple Amethyst : What causes the purple color of amethyst?

How does Amethyst get its color?

The color of amethyst has been shown to result from the substitution of trivalent iron (Fe3 +) for silicon in the structure in the presence of trace elements of a large ion radius and, to a certain extent, the amethyst color can naturally result from the displacement of the transition elements even if the iron concentration is low. Real amethyst is dichroic in reddish violet and blue violet, but when it is hot, it turns yellow-orange, yellow-brown, or dark brownish, and can resemble citrine, but, unlike true citrine, it lacks its dichroic. Amethyst can result in ametrine when partially heated.

The color of the amethyst comes from the quartz color centers. They are produced when small amounts of iron are irradiated (from the normal radiation in the rocks).

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Sir Grappler Truth Teller OAM Gold Member Offline Australian Politics Posts: 90098 Proud Old White Australian Man Gender:	Re: Can you identify these rocks? Reply #142 - May 7^th, 2025 at 7:45pm Jovial Monk wrote on May 7^th, 2025 at 7:30pm: How did Wegener fit together his supercontinent from present day continents? Same as the Aboriginal super-serpent stones and the pyramids - sky-hooks!!
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 51474 Gender:	Re: Can you identify these rocks? Reply #143 - May 7^th, 2025 at 7:52pm As well as fitting together {exactly what shapes?} Wegener pointed to something else to support his reconstruction of the supercontinent. What did he point to?
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 51474 Gender:	Re: Can you identify these rocks? Reply #144 - May 7^th, 2025 at 7:55pm OK, another question. You are driving in the country somewhere. You see big rounded rocks, rounded outcroppings. What are those rocks made of?
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 51474 Gender:	Re: Can you identify these rocks? Reply #145 - May 7^th, 2025 at 7:56pm Another place and the rocks are square or rectangular, no rounding. What are these rocks made from? Why can these rocks cause problems to roads cut through them? You have probably seen chunks of these rocks at the base of cuttings—why?
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 51474 Gender:	Re: Can you identify these rocks? Reply #146 - May 7^th, 2025 at 8:08pm Why was Wegener’s theory of Continental Drift not accepted? Has anything changed since the Theory of Continental drift was first propounded?
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Bobby. Gold Member Offline Australian Politics Posts: 118739 Melbourne Gender:	Re: Can you identify these rocks? Reply #147 - May 7^th, 2025 at 8:08pm Quote: The color of amethyst has been shown to result from the substitution of trivalent iron (Fe3 +) for silicon in the structure So Monk - what is Fe3 + ?
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 51474 Gender:	Re: Can you identify these rocks? Reply #148 - May 7^th, 2025 at 8:16pm Not Fe2
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 51474 Gender:	Re: Can you identify these rocks? Reply #149 - May 7^th, 2025 at 8:20pm Did the discovery of polar reversals affect the acceptance of the Theory of Continental drift? How?
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Poll
Question: Does Monk have a degree in geology?
* This poll has now closed *
Yes 0 (0.0%) No 3 (100.0%) Total votes: 3 « Created by: Bobby. on: May 7^th, 2025 at 6:19pm »