From owner-rockhounds-digest@drizzle.com Sun Jan 21 15:44:08 2001 Date: Thu, 11 Jan 2001 23:49:03 -0800 From: rockhounds-digest Reply-To: rockhounds@drizzle.com To: rockhounds-digest@drizzle.com Subject: rockhounds-digest V1 #754 rockhounds-digest Thursday, January 11 2001 Volume 01 : Number 754 ---------------------------------------------------------------------- Date: Thu, 11 Jan 2001 19:21:58 -0500 From: Kreigh Tomaszewski Subject: Re: Email lists of Interest to all Facets (no pun intended) of the Ho bby My rockhounds links page has a section on email discussion groups. http://Tomaszewski.net/Kreigh/Minerals/MineralLinks.shtml If you find I have incomplete, incorrect, or obsolete information on any list, or am missing a list, please let me know the details so I can correct it. Thanks! Kreigh Tomaszewski Mailto:Kreigh@Tomaszewski.net Please visit our family web pages at http://Tomaszewski.net Tom.Bowers@sematech.org wrote: > > Folks, > > Now that all of the "forming and storming" of new email lists has subsided for > the moment, I thought it might be useful for the group to compile a > comprehensive list of all related-subject email lists. I'll start with this > email to the ones that I belong to. Additionally, for example I know that there > are others dedicated to dinosaurs, micromounts, faceting, petrified wood, > geoliterature, LA-Rocks, Texas Geology, etc., etc. I don't have their email > addresses for those who might be interested in joining, but I know others of you > do. Perhaps we could start a string of listing all such emails that we as a > combined group are aware of. Might be fun just to see what that list looks > like. > > Tom > > ################################################################# > # Rockhounds@drizzle Mailing Alias: rockhounds@drizzle.com # > # Web: http://www.drizzle.com/~afox/rockhounds/ # > # Subscription Services: majordomo@drizzle.com # > ################################################################# ------------------------------ Date: Thu, 11 Jan 2001 22:17:04 EST From: Bozo5@aol.com Subject: Re: Franklin NC Interested in a creekbed with sand that is ~30% garnet? Garnets only go up to 1/8 inch, but are guaranteed native. Flint ------------------------------ Date: Thu, 11 Jan 2001 19:35:32 -0800 (PST) From: LunarCowGirl Subject: Flat Lap Hi, I have a bunch of stones I would like to flat lap for my sisters classroom. I am curious if anyone out there knows how to make one rather inexpensively or is it easier to just buy one? Any help would be appreciated. I have some experience working with lapidary. =) Thank you Jane ===== ""Great minds discuss ideas, average minds discuss events, small minds discuss other folks, but brilliant minds often lose track of the moment. Now, what were we talking about?" unknown "Age does not protect you from love. But love to some extent, protects you from age." - Anais Nin "Dreaming of you, licks me like fire. Stirring up my senses, I wake up alive" - by: me __________________________________________________ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ ------------------------------ Date: Thu, 11 Jan 2001 23:17:26 -0500 From: Kreigh Tomaszewski Subject: Re: Flat Lap Jane, If the stones already have a surface that is near flat (cut with a saw, reasonably clean break) you can lap and polish them by hand with carborundum grit (more commonly used for tumbling) and a sheet of plate glass. For more details go out to my homemade lapidary equipment page at http://Tomaszewski.net/Kreigh/Minerals/Homemade.shtml and look for the Polishing Rocks by Hand section at the bottom. Do the first couple yourself, and the rest could be turned into a class project once you showed them how. Kreigh Tomaszewski Mailto:Kreigh@Tomaszewski.net Please visit our family web pages at http://Tomaszewski.net LunarCowGirl wrote: > > Hi, I have a bunch of stones I would like to flat lap > for my sisters classroom. > I am curious if anyone out there knows how to make one > rather inexpensively or is it easier to just > buy one? Any help would be appreciated. > > I have some experience working with lapidary. =) > > Thank you > > Jane > > ===== > ""Great minds discuss ideas, average minds discuss events, small minds discuss other folks, but brilliant minds often lose track of the moment. Now, what were we talking about?" unknown > > "Age does not protect you from love. But love to some extent, protects you from age." - Anais Nin > > "Dreaming of you, licks me like fire. Stirring up my senses, I wake up alive" - by: me > > __________________________________________________ > Do You Yahoo!? > Yahoo! Photos - Share your holiday photos online! > http://photos.yahoo.com/ > ################################################################# > # Rockhounds@drizzle Mailing Alias: rockhounds@drizzle.com # > # Web: http://www.drizzle.com/~afox/rockhounds/ # > # Subscription Services: majordomo@drizzle.com # > ################################################################# ------------------------------ Date: Thu, 11 Jan 2001 20:35:13 -0800 From: Teresa Masters Subject: Question, Rock and Mineral clubs To All, We have in the past discussed how to increase interest and membership in Rock and Mineral Groups. Many suggestions have been made. I would like to take the other side and gather information on what clubs do that discourages members from remaining or joining. I think we need to look at both sides of the coin to gain a better perspective of why this is an issue at all. I am doing this to ultimately help keep this interest active and thriving. Comments can be made directly to me and will be kept anonymous. I will compile answers and upload them for all to see and comment on publicly if you wish to do so. Responses online can be commented on, but please no flaming. Let us make this a productive thread. There are several situations that can improve. I cannot post to all above addresses, I would appreciate if intermediaries pass this along for me. Thank you, Teresa ------------------------------ Date: Thu, 11 Jan 2001 22:52:59 -0600 From: Gary Brown Subject: Re: Franklin NC Sure... gcb / At 10:17 PM 1/11/01 EST, you wrote: >Interested in a creekbed with sand that is ~30% garnet? Garnets only go up >to 1/8 inch, but are guaranteed native. > >Flint ------------------------------ Date: Fri, 12 Jan 2001 00:16:01 -0500 From: "Frederick L. Olmstead" Subject: Re: Franklin NC YES I AM INTERESTED YOUR "NOTE' IS NOT CLEAR. GeorgiaO _______ Bozo5@aol.com wrote: Interested in a creekbed with sand that is ~30% garnet? Garnets only go up to 1/8 inch, but are guaranteed native. Flint ################################################################# # Rockhounds@drizzle Mailing Alias: rockhounds@drizzle.com # # Web: http://www.drizzle.com/~afox/rockhounds/ # # Subscription Services: majordomo@drizzle.com # ################################################################# ------------------------------ Date: Thu, 11 Jan 2001 23:55:18 -0500 From: Kreigh Tomaszewski Subject: (Re: Franklin NC) Using Garnets for Tumbling Grit Garnets have a hardness between about six and seven and a half. Crushed garnets make an abrasive that is often more effective (especially on softer materials) than carborundum for tumbling. As crushed (or whole) garnets are 'worked' in tumbling they produce garnet "fines". Garnet fines have been used in lapidary work for hundreds of years. If you like to tumble, and have access to garnets, you might want to try garnets instead of carborundum. Load your tumbler with rock, but instead of carborundum, put in a mix of whole and crushed (smashed with a hammer) garnets. Run it the about normal length of time you would use for all your normal grit changes (check it near the end every few days) -- as it runs the garnets will break down (and the larger pieces will tumble) and it will produce each grit grade at about the right time automagically. Clean well, and you should be ready to run the polish (and at worst, you might need to pre-polish first - or run it a few more days). Whole (small) garnets also make a great filler for a partial load. A single, approaching as large as the barrel, stone can be tumbled and polished using small garnets and carborundum. Some hardware cloth (screen, 1/8 - 1/4 inch squares) would be useful for collecting the garnets and seperating them from the sand in your stream bed. I sure wish I had a stream like that near me. Kreigh Tomaszewski Mailto:Kreigh@Tomaszewski.net Please visit our family web pages at http://Tomaszewski.net Bozo5@aol.com wrote: > > Interested in a creekbed with sand that is ~30% garnet? Garnets only go up > to 1/8 inch, but are guaranteed native. > > Flint > ################################################################# > # Rockhounds@drizzle Mailing Alias: rockhounds@drizzle.com # > # Web: http://www.drizzle.com/~afox/rockhounds/ # > # Subscription Services: majordomo@drizzle.com # > ################################################################# ------------------------------ Date: Thu, 11 Jan 2001 21:10:40 -0800 From: Teresa Masters Subject: Re: Tucson get together? Art, I would like that. Teresa ------------------------------ Date: Fri, 12 Jan 2001 00:22:55 -0500 From: Kreigh Tomaszewski Subject: Re: Question, Rock and Mineral clubs Teresa, You make an interesting point. There are a half-dozen clubs that I have heard of that meet within an hour drive from my home. Not one of those clubs has left information about when and where they meet at any of the rock shops I know of in that same drive time. I know, I've asked at all of them. How long would it take to neatly print details on a 3x5 card and leave it the next time a club member (Hey, I'm talking to YOU!) stopped by their local shop? And I suppose I should also ask why the shop owners' haven't sought out that information and posted it near their counter? Promoting local rock clubs can only be good business for any rock store owner. Am I missing something, or is this discouraging new membership? Kreigh Tomaszewski Mailto:Kreigh@Tomaszewski.net Please visit our family web pages at http://Tomaszewski.net Teresa Masters wrote: > > To All, > We have in the past discussed how to increase interest and membership in > Rock and Mineral Groups. Many suggestions have been made. > > I would like to take the other side and gather information on what clubs > do that discourages members from remaining or joining. > > I think we need to look at both sides of the coin to gain a better > perspective of why this is an issue at all. > > I am doing this to ultimately help keep this interest active and > thriving. Comments can be made directly to me and will be kept > anonymous. I will compile answers and upload them for all to see and > comment on publicly if you wish to do so. > > Responses online can be commented on, but please no flaming. Let us > make this a productive thread. There are several situations that can > improve. > > I cannot post to all above addresses, I would appreciate if > intermediaries pass this along for me. > > Thank you, > Teresa > > ################################################################# > # Rockhounds@drizzle Mailing Alias: rockhounds@drizzle.com # > # Web: http://www.drizzle.com/~afox/rockhounds/ # > # Subscription Services: majordomo@drizzle.com # > ################################################################# ------------------------------ Date: Fri, 12 Jan 2001 02:06:00 -0400 From: sinico@nbnet.nb.ca (H.Durstling) Subject: Re: Flat Lap Hi Jane, Assuming you're starting with sawn slabs, how to proceed depends on how big your stones are, how many you plan to lap down, and what you plan to use for an abrasive. If you're only doing a few comparatively small ones, say in the size range of a domino stone try silicon carbide grit plus water on plate glass. It takes time. If you have a cabbing machine that takes end plates and if you're mechanically inclined you can make a flat lap out of copper or brass sheet. It should be about 3/32" thick. I make 6" laps out of a 3" copper pipe sawn open and beaten flat on the anvil. These then get trimmed round and glued to a 6" plywood disc which fits into the arbor. Then comes the labour intensive part of trueing the surface by running a hard-backed flat pad of sanpaper over it repeatedly until the disc runs smooth and without bumps. I might add it's very! labour intensive. The copper discs (or sometimes bronze) are then charged with diamond grit. They work well, but where seriously accurate flatness is required (such as in making doublets or triplets with opal or ammolite I still do the final flattening on a plate glass substrate. I don't see any reason why you couldn't use silicon carbide on such a lap, although diamond works much faster and also embeds itself permanently in the lap. Hope that helps Hans Durstling Moncton, Canada ================== > I have a bunch of stones I would like to flat lap >for my sisters classroom. >I am curious if anyone out there knows how to make one >rather inexpensively or is it easier to just >buy one? Any help would be appreciated. > >I have some experience working with lapidary. =) > >Thank you > >Jane > >===== >""Great minds discuss ideas, average minds discuss events, small minds >discuss other folks, but brilliant minds often lose track of the moment. >Now, what were we talking about?" unknown > >"Age does not protect you from love. But love to some extent, protects you >from age." - Anais Nin > >"Dreaming of you, licks me like fire. Stirring up my senses, I wake up >alive" - by: me > >__________________________________________________ >Do You Yahoo!? >Yahoo! Photos - Share your holiday photos online! >http://photos.yahoo.com/ >################################################################# ># Rockhounds@drizzle Mailing Alias: rockhounds@drizzle.com # ># Web: http://www.drizzle.com/~afox/rockhounds/ # ># Subscription Services: majordomo@drizzle.com # >################################################################# ------------------------------ End of rockhounds-digest V1 #754 ******************************** ################################################################# # To subscribe or unsubscribe to the Rockhoundz List, send mail # # to with the following keys: # # subscribe rockhounds (or) unsubscribe rockhounds # # rockhounds@drizzle.com | http://callisto.golder.com/rockhoundz# #################################################################