Has anyone figured out a way to polish calcite? I know its soft but there must be a way. I gathered up some nice pink ornamental stone used to put around shrubs, etc. I put it through the Vibe with AO with no shine results. I run the polish cycle again with TO and still no results. I cushioned pretty well with ceramic and soap but it just didn't take a shine. Has any one been able to shine the stuff?
God of Multiple Parallel Universes Full of Rocks and Apprentice to THE ONE.
Calcite and the tumbler are not friends! Basically you end up with a calcite slurry! And polishing works pretty good with calcite. I tried cabbing some but pretty much failed as the calcite was just too soft for my heavy handed ways.
I can't tell if thats some Gneiss Schist, or that Schist is Gneiss. All I know is don't take it for Granite
Post by Hard Rock Cafe on Mar 7, 2011 11:48:20 GMT -5
Here's why it doesn't work in a tumbler, from wikipedia: "Calcite can be either dissolved by groundwater or precipitated by groundwater, depending on several factors including the water temperature, pH, and dissolved ion concentrations. Although calcite is fairly insoluble in cold water, acidity can cause dissolution of calcite and release of carbon dioxide gas. Calcite exhibits an unusual characteristic called retrograde solubility in which it becomes less soluble in water as the temperature increases. When conditions are right for precipitation, calcite forms mineral coatings that cement the existing rock grains together or it can fill fractures."
Some rocks aspire to greatness; others are destined to be grit carriers.
Post by deb193redux on Mar 9, 2011 14:33:08 GMT -5
tweaking the pH to prevent it dissolving is a very neat idea. I have a dim memory of something similar for cleaning iron off of calcite crystals without dissolving them. But I think soft still presents a problem.
bhiatt: well tonight at 8pm is when the verdict goes public about the Michael Brown case in Ferguson, St Louis. Im curious to see what happens. National Guard is ready again. I hate to say it but I think it might get bad again for a while with the hood rats.
Nov 24, 2014 18:38:04 GMT -5
bhiatt: I live due east 20 miles from Ferguson but Im in honky tonk town. Not worried. There is some hit list,lol, and Collinsville, IL., the next town over was on the list. Cant remember the exact spot that was listed though.
Nov 24, 2014 18:40:21 GMT -5
Shotgunner: stay safe Brad, stay safe. They shoulda announced yesterday during NFL while it was pouring rain. Scheduling the announcement so far in advance seem to invite bad actors.
Nov 24, 2014 19:05:30 GMT -5
bhiatt: yep. I agree Shotgunner. Now the crowd is gathering on the main street in Ferguson. Gonna last all night. TV is all local news covering it live. Better not cut into my Two Broke Girls lol. kidding
Nov 24, 2014 19:35:34 GMT -5
glennz01: about a week away from final polish on all 80 or so lbs of my rock
Nov 24, 2014 23:45:00 GMT -5
Shotgunner: In Florida arsonists may be shot and killed, not much pillage there. Missouri should consider taking Florida's lead.
Nov 25, 2014 17:02:06 GMT -5
bhiatt: yeah they were trying to keep from that happening. Not one shot was fired by police or the national guard last night. Tonight may be different. The news was reporting seeing lots of guns in the crowd. I guess they think even more rioting if the cops start
Nov 25, 2014 17:46:08 GMT -5
bhiatt: shooting back. There were hundreds of gun fire shots last night in Ferguson. 21 fires.
Nov 25, 2014 17:47:07 GMT -5
bhiatt: hundreds of nation guard for tonight. Them ghetto boys creep around in the shadows. Its hard for them to catch them. They throw them fire bomb bottles and run of and the building goes up in flame quick.
Nov 25, 2014 17:49:42 GMT -5
bhiatt: 2200 national guard, 700 police officers. Ew Raw! I shure hope they shut them pant sangers down tonight.
Nov 25, 2014 19:13:49 GMT -5
mr.mohs: pant sangers
Nov 25, 2014 22:44:13 GMT -5
bhiatt: dang looks like New York has bigger protest going on than st Louis.
Nov 25, 2014 23:20:05 GMT -5
Fossilman: A bunch of fools!
Nov 26, 2014 0:02:30 GMT -5
wampidy: All for a silly little thing like shooting an unarmed man with his hands up six times. Police attacking news camera men like they are wild dogs. There is a large group of veterans and active duty military personnel asking the National guard to stand down.
Nov 26, 2014 9:22:50 GMT -5
wampidy: About a hundred constitutional rights have been violated and this could be a huge turning point in becoming a police state or not. We could loose a lot of rights here. I am not agreeing with the looting and fires but the police have been very bad there.
Nov 26, 2014 9:26:35 GMT -5
Fossilman: I'm talking of the looting,fires and etc........Just like the 60's and 70's again....
Nov 26, 2014 10:39:20 GMT -5
bhiatt: Here in St Louis the police or national guard have not got aggressive. That's why the trouble makers had their way. Last night they had the numbers and just swarmed the streets telling people to basically leave. This was at 11 at night not during the day
Nov 26, 2014 14:46:43 GMT -5
bhiatt: when the peaceful protestors come out. I think the police and national guard now have them basically under control. They still might be out for the rest of the week, I wouldn't doubt that. The po po and nat. guard did not want to start a big shoot out,
Nov 26, 2014 14:49:57 GMT -5
bhiatt: I probably wouldn't even be watching the crap if it wasn't so close to me.
Nov 26, 2014 14:50:44 GMT -5