Talk:Limestone
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in toothpaste? can we find a source for that?
Kaens 21:17, 20 December 2006 (UTC)
- Gillson, J.L., and others, 1960, The Carbonate Rocks: in Industrial Rocks and Minerals, 3rd ed., Amer. Inst. Mining, Metallurgical, and Petroleum Engineers, p. 189. Geologyguy 21:51, 20 December 2006 (UTC)
- Also, online in narrative form, here (Utah Geological Survey) Geologyguy 22:00, 20 December 2006 (UTC)
Limestone is a sedimentary rock. It is used in lots of ways; it used for buildings, for agriculture etc. It is strong, but easy to cut when you have a big sword. Easily corrodes in acid rain
Whitney
How is limestone "readily available relatively easy to cut into blocks" and yet "quite expensive"? Kwertii 04:42, 21 Oct 2004 (UTC)
What different types of limestone are there
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[edit] In reply..
In reply to both previous discussion topics: 1) "Easy to cut when you have a big sword"??? (It's the year 2006, not 1206!)
2) Kwertii, the rock is fairly common therefore readily available, and it can be chopped into blocks of all sizes, but the extraction process is expensive - involving blasting the rock with explosives, seperating it from the impurties, and getting rid of the impurities produced. Therefore, the rock costs about £5/tonne, or $9/tonne. --LeFrog 11:06, 26 May 2006 (UTC) 3)how does it transport the limestone
[edit] Fixing "Uses of Limestone" Image
On Thursday September 28th, 2006 I fixed the "Uses of Limestome" image at the bottom of the page to center it. The image used to be docked on the left side of the page but it was causing problems with the text below it.
[edit] Ratio of limestone to marine life
For there to be so much calcium carbonate or lime on the planet, there must of been a hell of a lot of marine life over 290 million years ago, to have all this lime all over the planet. are you sure there is not some natural chemical reaction that has formed all this excess limestone?
- Some people say Limestone can be formed two ways, by living things and by a chemical reaction. It gets a little complicated from here. I'll start off the chemical reaction, Travertine, according to wikipedia travertine is not limestone but it is Calcium Carbonate? Isn't limestone calcium carbonate too? But anyways, the point is that travertine is not as common as Limestone made by living things. When the 'living things' were actually living, almost all of the earth was covered with water so there was a lot more of them then there is today. Also, as you stated they had 290 Million years to be born and die to eventually turn into limestone. It's the same thing as Algae and Zooplankton turning into millions if not billions of gallons of Petroleum that we use today. Bear21 06:09, 5 October 2006 (UTC)Bear21
[edit] continued malicious edits in the last 24 hours
So, lots of very malicious edits to this article. It looks like the same person even though they are coming from different IPs, and they appear to be deliberately misleading. Perhaps we should start considering a semi-protect on this article. Debivort 21:54, 9 January 2007 (UTC)
- OK with me! I've never asked for that (don't know procedure), so if you want to, go for it, I guess. Cheers and thanks - Geologyguy 22:38, 9 January 2007 (UTC)
[edit] Health effects of lime dust
I am starting a job hauling burnt lime to a steel mill. It is very dirty and dusty. Are there any health issues known involving burnt lime, and the dust?
- Try the links at this Google Search. Geologyguy 16:44, 28 January 2007 (UTC)
[edit] How hard is Limestone on the Mohs scale
How hard is Limestone on the Mohs scale? I can't tell. Can anyone tell me?
--DέǍtЋŜǎŝЏЌə
- Well, as a rock rather than a mineral, it probably doesn't exhibit a single standard hardness. That said, it's hardness will largely reflect that of it's main constituent mineral, calcite: 3. Debivort 07:51, 6 March 2007 (UTC)
[edit] march 07
The page is taking quite a beating now. I've put in a request for a semi-protection. Hopefully this spate of vandalism will die down. Cheers, Debivort 19:17, 8 March 2007 (UTC)
