April 2011 Newsletter
Transcription
April 2011 Newsletter
TH E GOLD E N N U GGE T April 2011 11-04 PROGRAM CORNER When: April 14, 2011 Where: 1751 Congressman William L. Dickinson Drive (U.S. 231), Montgomery, AL 36109 REMEMBER TO PARK in the back of the building and use the back entrance! Time: 7:00 P M What: A General Conversation about Alabama’s Geology Who: Thad Cheatham and a cast of other members Everyone can and should participate in this topic by bringing cool specimens found in various locations in our own state. Don’t forget to bring at least one rock, gem, or mineral from ALABAMA! 1 REFRESHMENTS Drinks: Leslie Amato Snacks: Linda Griebel & Mike Berkman Please remember to bring paper plates, napkins, and cups. Ice is available at the community center. It is your responsibility to find another member to substitute in the event you are unable to fulfill a month for which you signed up. List for remainder of the year: drinks May Harry Corbin June Linda Boyd July Drucilla Hornsby Aug the Sherrods Sep Debbie Herbert Oct David Bohon Nov Stan Stevens 6 Jim Gaines 19 David Echols snacks Iris McGehee Frank Rowell The Randalls and Jeremy Towns the Sherrods Ardis Cecil VACANT VACANT HAPPY APRIL BIRTHDAY 27 Connie Randall 30 Betty Anderson Hello Everyone! I received a call from a lady that has Black opals for sale, still in the rough. If you are interested I will give you her address and phone number at the meeting. Still no word from Stanley Company nor Estwing Company. Currently I am talking with a family member that owns a large tract of land in Coosa County and if they are in agreement, I will be getting directions and information to Jeff on the property for a possible dig site. This will cost us nothing but I want to make sure that everything will be safe and that there are some good specimens for us to find. I have personally removed silica and pyrite with a few small garnets. I have seen some crystals that had the same color as a spessartite garnet. This area is very close to where tourmaline and golden beryl have been known to be found and a published book on minerals in the southeast has recorded substantial findings in the area. We will let you know more as the info becomes available. Looking forward to seeing you at the meeting! Lynn Stauch, President 2 ________________________________________________________________________ NO FIELD TRIP IN APRIL _______________________________________________________ MEMBERS WORK WITH ARCHIVES ON UPCOMING EXHIBIT Our 1st VP Thad Cheatham took the initiative to contact Ed Bridges at the Alabama Department of Archives to determine what might be needed for a proposed exhibit they wanted to do on rocks and fossils of Alabama. In response to that request, Thad Cheatham and Jeff Edwards donated some of their own collection of valuable specimens to the Archives and seem to have wowed them. The display will be educational in nature and should be ready by early summer. We will provide dates once we have them so everyone can visit the Archives. They do have a request for one more item not yet provided - some Alabama gold samples. If you have gold that you are willing to donate, please contact Jeff Edwards at 312-0572 so he can coordinate getting it to Mr. Bridges. _______________________________________________________ Trivia Vug (contributed by Terry Fetzer) From R.J. Harris, Central PA RMC Borneo and India were the world’s first significant diamond source around 800 BC. The popularity of opal plummeted in the 1800s when a widely-read European novel convinced folks that the gem was unlucky. The Greek philosopher Aristotle was the first to record the therapeutic use of lodestone (magnetite). The gold earrings once worn by pirates served a practical purpose. They covered the cost of a proper burial. There is actually an “American Association for Crystal Growth” (AACG). It is a national non-profit organization whose purpose is to organize and support activities which serve the technical and professional interests of its members and the crystal growth community. 3 Dinosaurs did not live in the sea. All dinosaurs are classified as land animals. Large oceanic creatures such as Kronosaur or Elasmosaurus were considered marine reptiles. Sources: AACG, Chase’s Consulting, BestWebsites.com (From Rock Buster News, 09/2005, 02/2006, via The Hounds Howl, Feb 2006) _____________________________________________________________________ A TRIP TO THE SHOP What a great way to spend a Saturday afternoon! My husband Gerald and I went to visit the shop on March 19th. I really enjoyed this and it was a great experience. Jeff did a great job explaining all the different types of saws and grinding equipment, as well as going through the safety procedures of each machine. I even got to use the Cabochon grinding machine for the first time. I can see why everyone enjoys finding out what’s inside of the rocks they find. I enjoyed seeing Club members and hope you have the opportunity to use this shop. Remember SAFETY FIRST! Violet and Gerald Threadgill ______________________________________________________________________ Not Everything Geological Takes Forever to be Shaped (contributed by Terry Fetzer) By Dale Gnidovec, Curator of the Orton Geological Museum at Ohio State University. Many Earth processes are very slow — the growth of mountains, the erosion of hills, the movement of continents — so geologists tend to think in long time spans. That outlook is proper for many things, but a recent article demonstrated that it might not apply to something that I have often assumed it does — the growth of crystals. Most of the gem minerals — emeralds, rubies, sapphires, diamonds — form underground, so we can’t watch them form or measure how fast they grow. We can, however, make some educated guesses based on other information. For example, the beautiful aquamarine crystals from Pakistan and Afghanistan occur in granitelike rocks called pegmatites that solidified less than 5 million years ago. Pegmatites form only at depths of at least 3 miles. The area is rising at the rate of about 4 half an inch per year, so it took at least half a million years for those pegmatites to reach the surface. That doesn’t leave more than a couple million years for those aquamarine crystals to form. Another indirect method is to calculate how long it took crystal bearing molten rock to cool and harden. A dike is a tabular (sheet like) body of igneous rock that was injected as molten material into older rock. The dikes in California’s San Diego County are known for producing large crystals of tourmaline. One dike, called the Himalaya Dike, is 1½ feet thick, and another, the Stewart Dike, is 82 feet thick. Knowing how hot the material had to be when molten and knowing the thermal conductivity of the surrounding rocks, researchers calculated that the thicker dike took nine years to cool and harden and the thinner dike took just five days! That means a 4inch-long tourmaline crystal in the Himalaya Dike grew at almost an inch a day. Fast crystal growth also has been documented directly. The ancient Greek silver, copper and lead mines of Laurium, about 25 miles southeast of Athens, were worked extensively. The Greeks dumped the slag into the sea, where reaction to seawater caused crystals to grow. As long as a halfinch, they formed after the mines were abandoned about 2,000 years ago. Gypsum crystals in salt pools in Australia have been observed to grow a half-inch a month, and borax crystals in Searles Lake, Calif., add a half inch every few hours. Earth isn’t always slow. ([email protected], December 27, 2005, www.dispatch.com, website of The Columbus Dispatch, via The Hounds Howl, Feb 2006) _______________________________________________________ Montgomery Gem & Mineral Society March 10, 2011 Minutes The meeting convened at the Muriel Crump Center on Congressman William Dickinson Drive. President Lynn Stauch called the meeting to order and recognized visitors. The minutes were approved as published in the Golden Nugget. The Treasurer's Report was read by Iris McGehee, which was approved and filed with the secretary. The meeting was held in another section of Center away from band practice which interfered with the last meeting. The club officially voted to accept this new meeting room. In doing so, the television and DVD will be installed tomorrow. The DVD was contributed by Frank Rowell. The possibility of a microwave in the shop was discussed. East Montgomery Gem & Mineral Club sent an announcement about Depot Day, June 4. There would no fee for our Gem Club. Contact person is Bruce Lott. James Easterling was rushed to Mobile last week for emergency surgery. The surgery was successful and he is expected to return home this weekend. Refreshments furnished by Terry and Becky Fetzer. March 19 is Safety Day at the shop. Thad Cheatham gave a review of Rules and Cautions posted in the Rock & Gem Magazine. This was a wake-up call for those who were unaware and a good reminder for those who were. The door prize was rubies in matrix from India contributed by Mary Lou McHugh. It was won by Kate Goodall. There being no further business, the meeting was adjourned. Mary Lou McHugh, Secretary 5 DANGEROUS DUST Or SOME STONES ARE TOXIC Thad Cheatham got things rolling at the March 10th meeting by noting the noxious and dangerous properties that some rocks possess. For instance, copper oxide based material contains asbestos and cyanide. He had always known that personal injury could result from the use of saws at the shop and thus he took appropriate precautions. However, the article that caught his attention noted that dust is released into the air in a shop environment. Some of the symptoms include coughing, aching lungs, influenza symptoms. One single heavy dose inhaled or perhaps even via skin contact could cause long term damage. Consider black lung disease. Copper, turquoise, malachite, azurite, quartz, chalcedony, petrified wood, soapstone, tigers eye are just some of the culprits. A dust mask or respirator is important, particularly when running the saws. Oil mist can fill the air. Another option would be an exhaust system with a hood or ductwork. Even opening a window or having the air conditioner on would be a positive step. Water and oil evaporates and releases dust. Oils can be poisonous to breathe. It is also important to change clothes after working in a rock shop and shower with lots of soap. Never dry sweep the shop! Use a vacuum or wet mop to remove residue and dust. If dust gets into your lungs, it stays there and you can’t get it out! Thad’s presentation was well received by members who added some very positive comments on this topic. On March 19th, Jeff Edwards gave an excellent orientation at the shop, outlining procedures, and the proper use of machines. 6 Thad also reminded everyone who attended the field trip of precautions to take when in the shop. ________________________________________________________________ REMINDERS>>> Bring cancelled stamps to meetings. Bring spare rocks, gems, minerals to any meeting in order to prepare for the Wheel of Fortune. Show your recent acquisitions at the monthly meeting so other members can experience a variety of different materials. The shop will be opened only by appointment. Please email or call any of the following individuals ahead of time to set up a shop work date: Frank Rowell, Terry Fetzer, Iris McGehee, or Harold Glover. NOTE: the shop will no longer be open on a regularly scheduled basis. 7 THAD’S PHOTOS FROM FEBRUARY 12 FIELD TRIP TO DESOTO CAVERNS 8 _______________________________________________________ Links to check out International Colored Gemstone Assn newsletter http://www.gemstone.org/ Georgia Meteorite Association http://www.meteoriteassociationofgeorgia.org/ William Holland www.lapidaryschool.org Wildacres http://www.amfed.org/sfms/wildacres-retreat.html Al Mineral Locality Index http://www.mindat.org/rloc.php?loc=Alabama%2C+USA GIA http://www.gia.edu/3954/gia_home_page.cfmhttp://www.greatdanepro.com/somewhere%20in%2 0time/index.htm Where to find treasure: http://www.treasureplaces.com/index.php/Main_Page ______________________________________________________________________ 9 SE SHOWS (for other areas, click on http://rockngem.com/showdates/) April 23-24 Memphis, TN Agricenter, Expo Center, West Pavilion & A- Wing, 7777 Walnut Grove Rd. Memphis, TN Sat. 9-6:00 and Sun. 10-5.Dealers, Adults $5.00, Children 12 and under $2.00. Scouts free. W.C. McDaniel 901 274-7706 April 23-24 JACKSON, MS: Trademart Bldg., Mississippi Fairgrounds; Sat. 9-6, Sun. 10-5; Sharon Mc Clanhan or Stan Bennett, (601) 898- 0407; [email protected] April 30—May 1 Charleston, SC Charleston Area Convention Center Exhibit Hall A 5001 Coliseum Dr. Sat. and Sun. 10 am to 5 pm. Karen Havenstein, Show Chair 843-795-2956 [email protected] May 6-7 Marietta, GA Sat. 1 pm- Fri. 10 am to 6 pm, Sat. 10 am to 6 pm, Sun. Noon to 5 pm. The Cobb County Civic Center, 548 So. Marietta Parkway and Fairground St. Show Chair: Tom Batcha (678) 407-4224, Roxanne Lopez (678) 491-0489 or www.gamineral.org/mayshow.htm May 6-8 FRANKLIN, N.C. Macon County Community Bldg., 1288 Georgia Rd.; Fri. 10-6, Sat. 106, Sun. 11-4; adults $2, under age 16 free; Linda Harbuck, (828) 524- 3161; [email protected]; www.visitfranklinnc.com Southeast Federation Field Trips May 28, 2011 10:00 AM EDT, Cotton Patch Gold Mine & Campground, Stanly County, New London, NC 41697 Gurley Road, New London, NC (http://www.cottonpatchgoldmine.com) COLLECTING: PLACER GOLD FEES: The following group rates are for the DMC club members only: Rate discount will be 10% on cabins or camping for our members and their guests. Panning for gold- pan for gold at our troughs. $ 10.00 for 3/ 2 gallon buckets OR $ 14.00 for 5/ 2 gallon buckets. Gold wheel rental with panning material (automatic panner) $ 8.00 for 4 hour rental Gold sluicing- more productive than panning, loads of material are brought to you to run at a live flume. 1/4 load (+/- 5 five gallon buckets) $40.00 2-3 hours; 1/2 load (+/- 10 five gallon buckets) $ 75.00 3-5 hours; full load (+/- 22 five gallon buckets) $ 140.00 6-8 hours Jack King, Charlotte G&MC - 704-892-7608, [email protected] ___________________________________________________________________________________ Club Officers for 2011 st President: Lynn Stauch 386-7330 1 V P/Programs: Thad Cheatham 462-3254 nd 2 V P/Field Trips: Jeff Edwards 312-0572 Secretary: Mary Lou McHugh 272-1817 Treasurer: Iris McGehee 262-7275 Directors: Jim Gaines 285-1988 Mel Barkley 277-2722 Board meetings are at 6:30 pm immediately before the monthly meetings. _____________________________________________________________________________ General Information The purpose of the Golden Nugget is to inform members of news about gems and minerals along with news about club, state, and regional activities of interest to our members. Most important, the Golden Nugget provides a way for each of us to share information about projects and to pass on tips that will help others enjoy our hobby. Unless members are willing to contribute, the Golden Nugget cannot meet this latter purpose. Copyright 2011 by Montgomery Gem & Mineral Society, Inc. Except for items that are specifically copyrighted by their authors, all material in this bulletin may be freely copied. Please give credit to The Golden Nugget and the appropriate author. 10 nd Meetings of the Montgomery Gem & Mineral Society are held every 2 Thursday of the month at 7:00 p.m. at the Mureal Crump Adult Center, 1751 Congressman William L. Dickinson Drive (U.S. 231), Montgomery, AL 36109, Montgomery, AL. The annual gem show replaces the December meeting. Anyone interested in gems and minerals is invited to attend. Field trips, workshops, and classes are held at various locations. These are announced at monthly meetings. Membership dues are $15.00 for individuals and $20.00 for families residing in the same household. The Montgomery Gem & Mineral Society is a member of the Southeast Federation of Mineralogical Societies, Inc. and the American Federation of Mineralogical Societies, Inc. In accordance with Title 17 U.S.C. section 107, this material is distributed without profit or payment to those who have expressed a prior interest in receiving this information. THE GOLDEN N U G G ET Official Voice of the Montgomery Gem & Mineral Society, Montgomery AL Linda R. Griebel, Editor [email protected] The Golden Nugget P. O. Box 801 Wetumpka, AL 36092-0801 11
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