WELCOME TO THE HUACHUCA MINERAL & GEM CLUB

THE HUACHUCA DIGGERS

The Newsletter of the Huachuca Mineral and Gem Club, Inc. 
P.O. Box 1596, Sierra Vista, AZ 85635-1596

The Newsletter of the Huachuca Mineral & Gem Club, Inc. P.O. Box 1596, Sierra Vista, AZ 85636-1596 Web Site: http://huachucamineralandgemclub.info

                                                         August 2018 
 
Business meeting first Monday each month, Sierra Vista Public Library Conference Room,  5:00 p.m. Members welcome.
 
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General Membership meeting third Wednesday each month, 7:00 p.m., Conference Room, Cochise College Library, Sierra Vista
 
Club field trips generally the Saturday after the club meeting, to be announced
 
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CLUB OFFICERS 2018
President………….… Ron Brooks …………. 378-2592
 1st Vice-President ..... Dave Dechant ……….. 458-8088
2nd Vice-President .… Greg Radzykewycz 520-221-0111
Secretary …………... Tracy Freeman ………. 344-2133
Treasurer ………..…. Glenn Bailey …..…..… 378-6291
Member-at-Large ….. Marty Keller …….....… 803-0667 
 
COMMITTEE CHAIRPERSONS 
Library ………..… 
Newsletter …….… Ingrid Baillie …………… 459-3718
Education/History.. Maudie Bailey ………….. 378-6291         
Ingrid Baillie ………..…. 459-3718         
Marty Keller ………….... 803-0667

Programs ……….... 
Membership …..…. Ingrid Baillie..………….. 459-3718
Show …………….. Maudie Bailey …………. 378-6291
Trips ……………... Maudie Bailey …………. 378-6291
Social ……………. Sandy Bates ……………. 378-4468
Scholarships …..…. Dave Dechant ……......… 458-8088
 
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AUGUST MEETING

   This month’s meeting will be held Wednesday, August 15, at the Cochise College Library Conference Room at 7:00 p.m.

   Jennifer Lavelle will give a talk on Larimar and Chromium diposide. Jennifer Lavelle and Theolet Bodry offered to provide treats for the meeting.

Voting on the proposed change to the club’s bylaws will be held. It will be posted in this issue for the last time 

BENCH TIPS FROM BRAD SMITH

From www.bradsmithjewelry.com

SAWING SMALL TUBING: When making a hinged bracelet, I needed to cut 16 pieces of small diameter silver tubing. These were to be just approximate lengths and trimmed to final size after soldering. Not having a tube cutter, I had trouble holding the tubing on the bench pin while trying to saw through it.

   So here’s what I did. I drilled a hole in the side of the bench pin just large enough for the tubing to slide into and almost as deep as the length of cut tubing I wanted. Sawing became quick and easy. 
SAWING SMALL TUBING: When making a hinged bracelet, I needed to cut 16 pieces of small diameter silver tubing. These were to be just approximate lengths and trimmed to final size after soldering. Not having a tube cutter, I had trouble  
 
 

With my free hand, I inserted the tubing and held it from rotating while sawing off each length.

SECRET INGREDIENT: Those of us who use paste solders sometimes find an old tube ha dried out. There should be some way to recondition it, but what to use? Calling tech support at the suppliers didn’t work for me. Either they don’t know what the ingredient is or won’t tell you the secret.

   None of us likes to waste an expensive material, especially at $16-$20 a tube, so I’ve often experimented with ways to rejuvenate it. Mixing in a liquid flux doesn’t work. When the liquid starts to boil off, it spatters the solder in all directions.

   But after several failed experiments I finally found a way that does work. My secret ingredient is Vaseline petroleum jelly. Mix in just enough to restore the consistency to something that’s usable. If you use too much, the lump of solder will flow over a wide area as soon as the torch starts heating it.

   If your solder is in a syringe, it can be a little difficult to get the plunger out. I find the easiest way is to poke a hole through the solder from the tip to the rubber plunger (a bur shaft was the right size for my tube). The hole allows air to enter between the solder and the plunger, allowing the plunger to be slowly withdrawn. Once the solder is out of the tube, you can easily add the Vaseline, mix it up, and spoon it back into the syringe.

 

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PROPOSED BYLAWS CHANGE

   This is the third printing of the HMGC proposed bylaws change, as follows:

Article VII, Election of Officers, Section 3b: Officers may be elected to succeed themselves in the same office for one term. It was proposed to amend this section so the article will read:

Section 3a: The elected officers shall be as follows:

   President, one (1) year

   First vice-president, one (1) year

   Second vice-president, one (1) year

   Secretary, two (2) years

   Treasurer, two (2) years

Section 3b: Officers may be elected to succeed themselves in the same office for one or more terms.

Section 4: The newly elected officers shall be installed at the January meeting.

Section 5: In the event of incomplete terms of office, the remaining Executive Board members shall make appointments to fill vacancies for unexpired terms.

Section 6:  In the event of an uncompleted term of office, the appointee finishing that term of greater than six (6) months, shall be considered to have served a full term.

Section 7: Continued absence by an officer from scheduled meetings without justification may be cause for dismissal from office at the discretion of the Executive Board.

   There is more to the article, mostly concerned with items owned by the club transferring to the new officers.

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AUGUST BIRTHDAY

A very happy birthday to all HMGC members who celebrate another year this month. They are: Harold Baillie, Ron Brooks, Chris Cook, JoAnne Langkow, Rick Rinker, Ted Swigart, Kathy Voss, Gordon Zihna, and any other club members not mentioned.

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ARIZONA EARTHQUAKES

   Did you feel the latest earthquake? None of us did, unless we were in the Sedona/Flagstaff area November 30, 2014. Although there were no injuries or damage reported, this can be a reminder that earthquakes can happen in other places besides plate boundaries and hot spots.

   Earlier that year, a 4.7 magnitude quake occurred along the Arizona/New Mexico border. The earthquake zone extends in a northwesterly direction, in a transition zone between the basin and range provinces of southern and southwestern Arizona. The Colorado Plateau was uplifted relatively recently, so there are many faults that are still active today.

   Earthquakes that may happen in southern Arizona would have their epicenters in Sonora, Mexico. The 1887 earthquake, magnitude 7.4, was felt in Bisbee, Tombstone, and Fort Huachuca, where damage was reported, and “entire mountainsides in the Santa Catalina Mountains gave way.”

   One major contribution to Arizona’s susceptibility to earthquakes is the abrupt elevation changes from the basin and range areas of southern Arizona to the Colorado Plateau. In Phoenix the elevation is approximately 1,000 feet, then the Transition Zone is 3,000 to 5,000 feet, and the Colorado Plateau is at least 7,000 feet. Although there is quite a bit of faulting in this area, there would probably not be an earthquake felt far across the state because the faults disrupt the earthquake wave paths.

From www.earthscope.org/about/archived _events/  

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WITH THE MEMBERS

   After suffering major injuries in a horrific car accident with a semi, Brenda Zabriski, our past president, is at home with her daughter. Greg Radzekewycz, HMGC Second Vice President, brought word that she had spent several days in intensive care in a hospital in Phoenix, with multiple broken bones and surgery, then more time in the hospital before being released. We wish her a successful and speedy recovery so she can get back out in the field looking for special rocks again.

   Joe Pais, a life member of the club, spent some time in the hospital due to illness, and is under hospice care. He can be reached at 458-5663. We wish him the best.

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COLORADO MINERAL & FOSSIL SHOW

   September 7-15 are the dates of the Colorado Mineral & Fossil Show at Crowne Plaza DIA, 15500 E. 40th Ave., Denver, CO (Northwest corner of 1-70 and Chambers Rd.). More information at www.Coloradomineralandfossilshows.com.

Sponsored by Rocky Mountain Gems & Minerals in Denver.

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BLUE DIAMOND NEWS

(from the Arizona Daily Star, August 2, 2018)

   AP Science Writer Christina Larson wrote that blue diamonds are the rarest diamonds which were formed more than a billion years ago. The blue in the diamonds, such as the Hope diamond in the Smithsonian Museum, comes from traces of boron in the minerals.

   Although boron is found fairly near the Earth’s surface, blue diamonds were formed at least 410 miles deep; other diamonds were formed at between 90 and 125 miles deep.

   “The researchers suggest that boron in the ocean floor was pushed down when plates that make up the Earth’s crust collided. The element allows the stone to absorb some red light so the diamond looks blue”.

   As diamonds are being formed, they can trap tiny bits of rock, the types of which can be identified by the reflection of a laser light shone through the diamonds.

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CHRISTMAS BANQUET

   Help is needed to find a place for the club to have the Christmas banquet. Ron Brooks’ house is up for sale, so we don’t have his place as a venue. Please come up with a suggestion at the August meeting so we can book a space. It will be a pot luck meal, with a gift exchange and voting for 2019 officers.

   The club can provide the ham and turkey, as it has in the past, with two members cooking the meat. The club can also provide the beverages (non-alcoholic). Members will provide their own table settings, as well as a side dish to share with others.

   For the gift exchange, choose something to share that costs approximately $10 or less.

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44TH ANNUAL HMGC SHOW

   The show is coming up, and a lot of help is needed. Maudie Bailey, show chairman, will have sign-up sheets for those to sign up to volunteer. Please sign up for a shift to help set up, work at the show, and take down. The show will be October 13-14, with set up on October 12. We need someone to work at the front table to represent the club.

   The Executive Board decided that club members can rent a space outside to sell rock-related items they may have to sell, but not have enough to rent a whole space for themselves. Several people can go together in renting a space.

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FIELD TRIPS

   The August field trip will be to Patagonia to look for fire agate, jasper, and agates. Anyone interested can meet at the post office in Patagonia at 7:30 a.m. Sunday, August 19. Dress for the weather and take plenty of water.

   A field trip is planned for a trip to Portal, near the New Mexico border, to look for orbicular mahogany obsidian. The trip will take place September 23. More later.

   An educational field trip is planned for September 7 with a local home school group. Details will be finalized soon.

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TURQUOISE “XIHUITL” TRADE

   Through research for her PhD degree, University of Arizona student Alyson Thibodeau, found that, contrary to popular belief, turquoise was mined in the vicinity it was used by the Aztecs and Mixtecs in Mesoamerica.

   Turquoise has different characteristics particular to the area it was formed. Copper deposits form deep in the earth, and when they are transported upward toward the surface, where they can react with groundwater. When copper and water react, under certain conditions, new minerals, such as turquoise form. The turquoise exhibits similar minerals to those in the area.

   The elements in the turquoise used by the Aztecs and Mixtecs match exactly the minerals in copper deposits in their specific areas of Mesoamerica.

These copper/turquoise mines were probably small workings because they were done by hand before the arrival of the Spanish conquistadores. Most of these mines have been destroyed by open-pit mining or by other means.

Article from the Arizona Daily Star, June 25, 2018

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INFORMATION BOOTH

   The club has a chance to man an information booth, at no cost to us, at the Farmer’s Market September 27, 10:00 to 2:00, and the same hours on October 11. This would be good advertising for our show the weekend after October 11.

   We need a few volunteers for the booth, so please make your wishes known at the meeting August 15.

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