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Page 1: to - mgscv.orgmgscv.org/Documents/petrograph/Petro 1989-06.pdfIts viscosity prevents ... GRAM CONVERSION CHART (Mineranog)'~ " , ... and then divide by factor indicated in above chart
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to

l~lrtolrs , , . , . . . . . . . . . . . . . . . . . . . . . . unore •.• ","'..," "'" ....

",Uti""". . . . . . . . . . . . . , . . . . . . . . . . . . . . . . .

.............................. Ednah

Advisor . . . . . . Roman Groves/Viola

. . . . . .. Roy Le Roy/Stella

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Monday

'l1tursday ....... . Friday . , ................ . Saturday . . . . . . . . . .. Juniors

Reno,

Ff}st, Inc., P.O. 702/356·9200

& Society Francisco County Fair

9th Avenue

Worth, 'VA"JVV''''''l<, Lenore Brest, AI

McCullough, Joo

UAl,"'" ''', Dina

tap to 00 all in.

Will

checklist for done on a nightly basis

Committee meeting the

is 3\vl'trds month at tile General

Life meml:;erships

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The meeurig; aQlloume:a at 9:05 p.m,

Vice Joe

l1aKl1l'KKM, Lee AV!w!!"l"""g" Judge Ewing, RwIs

Howard Buschke. Vern and Arnold Bartoo,

Fern Brown and Jolm

V'@UVl"JJ'K> Strzelec: the T~'Sl arm:mv"Jd the bills be

The next p,m,

month is deOOline for

is fme,

Gave a ftrumcial Has ','ll%;;U"U'~ aCCOlJJ1t. All items for in the

been paid for, beading the ca~e at the soop, Requests a

OJ">hf>""'''''' from AFeM"S .. of donations;

2

BeJ~imlers have rJI been 'w,,'ik~IY~fl'~"f"n dass was

M,"'H"',"i i;'~!"'lUUi!'V to be in May, p:esentatJons ~~ certiftcates

Life Memberships "JlC,llliA,i;M lVA=ILUIIl before

junior along

Got l~id of lots of junk at the

individua1 intetested

7:35 p,m, Vice~

members: Diane

the minutes be

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Don Witts gave information on the upcoming fair at Pleasanton. Needs as many exhibitors as possible.

Show Chairman: Still has to positions that need filling: camping and parking, speakers.

Membershi12: Everything is running smoothly.

Field Trip Coordinator: Gave report on up'COming Texas Springs trip. Other trips to be printed in the Petrograph.

£cholarship. Cllilirmall: Gave a report on CD and bank account

1st Year Dk~J.QI: Had to contests last month. John Keebaugh scored 96 for a cab; Jaime Benavides scored 98 for free form. The next competition won't be until September meeting.

Jilood Bank Chairman: Blood bank needs more don.lltions.

Veru Korstad/V ern McCullough: Life Mernberships for Allen Ashley and Billie Ashley was approved.

MSC: Vern KorstadlNool Zimmerman: Life Memberships for Del Jones ~md Mary Jones was approved.

Vem Korstad presented certificates ~md plaques to the following:

Ql!iifiga~s of Appreciation: Audrey Azevedo, Howard Buschke, Ron Hasemeyer, Bill Reynolds.

Fl&:llJ.~: Fern Brown, Joo Hammond, Russ Sanbom.

Life M\'2mbersrup: Allen and Billie Ashley, Del and Mary Jones.

SlL~~1l Chainnan: Needs slabs for the silent auction. New beadin ; supplies at the shor now.

A classified ad section will be in the Petrograph now.

;QQor~Pt:i1;~: Roy LeRoy, Linda Silva, Tandra Walker, Glen Murray.

MSC: Vern McCullough/NooI Zimmerman: the meeting be adjoumed.

The meeting was adjowned at 8: 15 p.m.

Respectfully submitted, Lee Worth, Secretary

3

Wi-NTEl): Jeweler's Bench. Please call Mary Wilson, 415/537~3702.

~: 96 index wheel for a Taylor Faceting Machine. Please call Candy, 415/839-1244.

Silver lace onyx to cut a 5 - 6" sphere. Please call Arnold, 415/538-6252.

W ANfED: Instructors for Thursday lapidary. Wages veiYlo;'T See Steering Committee Chairman.

Y{ANTED: Faceting instructors, full and part-time. See Steering Committee Chairman.

MARCH 1989 TREASURER'S REPORT

Show Raffle Due!! Shop FnOi.ooopy m&clJinll Intereat

SUBTOTAL

ludie Ewing/ooltt! Arnold lbmm/fmlll show food Willi!IDl M!lIldows/~er HaYVlm! ll\ks/2 mooili!J Lintz Crilft/~'ller refund Allim A~y!Dealer CMir. expo BOO R.l'lyttlood/l990 door prires 10m Oullllk/silop e~5

$ 778.19 1,525.98

245.00 131.00

6.00 ~,.u

$2;124.32

399.54 56.41 45.00

161.00 84.00 81.82 15.00

The Perguro.fw/1989 show OOrorntioos loe Kopn/1989 shffi."1 ~lidty J~wtre K()rllti!!llexhibit~ expo

300.00 360.00 63.24 14.99 50.79 Billie Ashley/1989 quilt

Judge Ewinlif~r Show ClWr/expimses £We Boord of EqualiZ!lliOl, y .M.C.AJs'aop l~ B.!l.nk CMrge!!

,1.01.09 9.96

900.56 300.44

13.00 $3,256.84

$8,452.85

$11,1'17.17

B~ce Forward $7,920.33

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I would like to thank all of you that brought goodies for our last General Meeting: Lolly Sodalay, Sadie

Vie

Ellen Ida Claflin? Helen Peterson, and Anderson.

a turnout for shop clean-up. 31 showed up. Thank you aU lfor a job well

is a good way to improve the work. John Keebaugh has

"nm~me:~nlomln for March and will receive a John. For April's

in stone by May 3.

Cab~of.lhe·Month for future months:

9 x 16 or 10 x 14 Jade x 40 any Agate or Jasper

20 30 any Agate or Jasper

t\vo contesis. The winner of the 9 x 16 Ke:ebilUlJ:':h with a 96%. The winner of

"""MeA''''', any size, any shape) was tear which ean1ed a

special thanks to the Shop Ida Clanin, and Joe Strczlec

for me during by absence. The general not have lY'~n the same without their

Hostess

to a hard~workjng crew who washed windows, saws, and scraped muck from grinding and

out.

\Ve

dryer to did it.

down, and squeegied

chili he suffered bums,

Hal nm

Ednab Anbmovicb. ShaUll nc'w screws <mel nuts for putting rugs on

Thank" to all of yOIl. If we

is able to to its members a discount rate for RO(;k & Gem Magazine through a special club discount would like to an approximation of the number of menfbers in receiving a two~year

rate, I believe) . your name and a

there are interested regarding details for

'roo for notifying me will be May 1989. CSlldy Jones

rfhe new Mineral Show in minerals, it new lists

up(1ate;d '''0"''''''0-'1 Classification List Copies can

L<'""i",,,,o~."W' Supplies your old copies, as

Lajpm;~IIY names.

used at the National intend to compete in

idea to get one of these mistakes in nomenclature.

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~teve lArvmoon April 2, Maui, Hawaii.

001 sist;(~r~

says

is horne ill

c.ame out the in for minor

in the loss of her to be with her

with the

gelllSIOn,~ IDl average Too a range uncut diamonds was SJlliOIIDCOO MlIlCh

21, I'Ind is now effective. It follows a 13.5% jnc:rea~!e May, alia a 10% ill

which is based in Johannesburg, controls 80% of the world's

friendliness with our

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The week of April 9 ~ 14 I spent at the CFMS 1989 Earth Science Studies at Soda Springs, Z:ZYXZ Rood, in the East Mojave Desert near Baker. The location is the site of a former health resort operated by Doc Springer, but is now mn by the Desert Studies Consortium of the California State Universities located in Southern California.

The Sunday I anived was the hottest day of the year, 103°F, but the daily maximum temperuture was down to 93° by the time I left on Friday. At last year's

it was cold so, naturally, I had brought my down sleeping bag. It did make a good mattress, however. In the mornings the temperature was down into the 60's.

was filled with scheduled activities, workshops in bead stringing, silver smithing,

and sculpting; field trips to the Z:ZYZX Stone Hammer turquoise mine, the

Wodd mine, and paIts of the old Mojave tours of the Soda Springs area that explained the

and fauna; ruld evening talks and slides the East Mojave Desert. The kitchen

by Marilyn Pmerenke and volunteers some very good meals.

I learned how to make a necklace and did some in the workshops, found some pretty turquoise

copper colored rock on the field trips and enjoyed the tours around Soda Splings. The rest of the time was spent meeting and conversing with the other pru,Ucipants, 811 well as just relaxing in the warm desert

was a week well spent. Russell Sanborn

1978: Martha Peters 1978: Zoe Martin

Phil and Maurita Clarke Ben and Virginia Owens

1979: Louise Palmer 1980: Judge Ewing 1980: Bill Walsh 1980: Je,aD Pfeifer 1980: Vemon and Jeanette Korstad 1980: Roy and Marie LeRoy

Hazel Petennan 1984: Helen Miguel 1984: Ednah Antunovich 1985: Arnold Barron 1986: Glenna and George Stephens 1987: Al Richter 1989: Allen and Billie Ashley 1989: Del and Mary Jones

To keep from losing a large share of heavy grinding powder off the side of a lap and into the drop pan, try beeswax. Before starting heavy lapping of flats, cover the surface with a thin coating of melted beeswax applied 'with a bmsh. One coating will last for several Iappixlgs mld can be reused. For final lapping, it is necessary only to mb the lap with beeswax to hold the powder.

Mix a tablespoonful of Clisco with same runount of Linde A or other polishing compound and apply it to a felt polishing wheel or lap. Its viscosity prevents the po'wder from flinging off or traveling to the edge of the lap.

SHOI» HINT (The Michigan Gena News)

In some displays, you want to use a slab of rock to show bow it looks before polishing. Water won't stay wet, grease looks greasy, and some waxes tum white under he~t. But, if you mb the surface with liquid detergent a.nd wipe it off, there is no shine, and the pattem will show.

GRAM CONVERSION CHART (Mineranog)'~ " ,

In the gem and mineral trades, the weighing of gem rough, cut stones, and even metals is often done by the use of a "gram" scale. The following chrut will show how othe4' units convert into granls. Clip it and keep it neas yoW' scale.

1 1 metric carat 1 pennyweight 1 ounce avoir 1 ounce troy 1 pound troy 1 pound avoir

0.0648 granl 0.2 granl 1.55174 granls 28.34953 grruns 31.103481 grams 373.1A177 granls 453.591A granlS

To determine weight in desired unit, weigh in grams, and then divide by factor indicated in above chart.

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i:my members have been requesting information ordering name badges for our club. The costs are $5.50 for a large badge, and $5.00 for a small badge. When ordering, PRINT YOUR NAME LEGIBI~YIN Cb.PITA~ l,EIt~~S. Send ~a~check ~made -payable to "5 B's" to the following address;

;5 B's 4138 David St. Castro Valley, CA 94546

If you nee..d further information, call 4151582-75477.

facetor's meeting will be July 18th. will cover possible pattern selections for

1990 show competition.

meeting is our annual recogllltlon of our 'HB'",,,"WJ"V" At this meeting, we recognize those who

the Society in many capacities and have that ex!J'a mile to help in any way they can.

is and presents them with of Appreciation, Society Plaques, or Life

li'Nards pn;s-elflted at our May meeting were to:

~~~~~1t~~~~' certificate, for her outstanding \~, I,md as Tre~tsurer.

a certif1cate, for his three shows. Now he is

for his dedicated work Field Trips.

mamtemaIlee, and Shop Steering.

certificate, for his wililngness to do some 'work in the shop, as saw man, helping the show committee, and general handyman.

Tuose receiving plaques for ~ong-tjme service, offieer, time given, Board of Diree'.')!":

She ho.> ~ librarian. an(

'ill ,l :)(. 'actting 7,:ith every show

'1H,\hI!U>, served on the the Scholarship

been a member for many .,,,_k',.:;,, .. , in many jobs, shows,

treasurer for seven years, and from 1982 to

Allen was President in Directors lTorn 1971-

field trip chairman; show chairman for the show

Receptionist; 7 years; with

and Country Store

in 1957): Del was for all three years from

n;,Wfi'~lf to State Organization 1973-75; Instructor in opal

work for many years. has always been willing to help in any that he could.

We dedication. Arnold

most of his capacities, was served on show commitl..ees

for their work and

cut thunder eggs, under a heat lamp

f1ve minutes. When a felt wheel with i.s almost instant

their own pickle to eight parts of

the acid TO the silver, or copper.

acid-content pickling silver. It works well,

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48

~~~ by Mark Garetz, ANGLES 1985, (9); 5, Corr. Seattle Facetor 1985 (10); 2

Pavilion 64

16

32

~_---IOO%

t 66%

8

32

CUTTING DIRECTIONS

1

PF

2

3

. 08 - 16 - 24 - 32 - 40 -48 - 56 - 64

same as above

02 - 06, 10 - 14, 18 - 22, 26 - 30, 34 - 38, 42 - 46, 50 - 54, 58 - 62

08 - 16 - 24 - 32 - 40 -48 - 56 - 64

NOTE: The Bravo cut is an octagonal modification of the Vega Cut which itself is a modification of the Barion Square. Thence the acrynonym name: Barion··Relative-After­yega-Qption.

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1\1 ; i

,.' if, /}f/\ I I

\"'" j ~/V .%?"~. \, ' . . , ~v

. "

• I

9

lot

.; ./

sledge, as there are

IN

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Purchasing is easy, since beads are measured in millimeters( mm) and commonly sold by the strand 16", 18", etc. There are 25.4 mm in an inch. To determine the number of beads on a strand, multiply the inches by 25.4 and divide by the bead size. In 16", there will be 203 2 mm beads, 101 4 mm, 67 6 mm, 50 8 mm, 40 10 mm, or 33 12 mm beads.

Gemstone Durability ,Char! (Carmel Valley Prospector)

The GIA Bookstore is offering an easy reference chart that provides gemological guidelines for gemstone durability in jewelry. The 31 gem materials most commonly encountered in jewelry are covered,

Mohs' hardness, toughness, and possible enhanGClnents, followed by rating for the relative

of (;ach of the most popular styles of setting, and of each of the most common methods of repair

cleaning. Even the susceptibility of the stone to ,,,-,,y,,",,',,,, fmm the heat and light used in display is

For information, contact the GIA Bookstore, 1660 Stewart St, P.O. Box 2052, Santa Monica, CA 90406. Phone toU-free, 1/800/421-7250, ext. 282.

!:!~W ~IHthetic Ston~ (Cannel Valley Prospector)

General Electric scientists have created the hardest subst<lllCe ever made by man or nalure. The crystal is h3%d enough to scratch a diamond and is able to withstand twice as much heat. It is MIned Borazon and may become extremely important to industrial polishing and cutting operations.

'I1,e inventor, Dr. Wenton, started with boron nitrate, which is similar in avpearance to talcum powder, 3lld subjected it to pressures of 1 million pounds per square inch and temperatures over 3,OOO°F. The crystal's structure changes from hexagonal to cubic. While a diamond bums at 1600°, Borazon call withstand temperatures up to 3500°.

ORIGIN? (i:Aldi Cbips)

According to the American Geological Institute Glossary of Geologic terms: Rockbound is a term oil drillers used about geologists who often smell rock samples taken from well cores for the odor of oil like a hound dog. Since then, anyone woo picks up rocks is a Rockbound.

- 10·

Persons interested in Quartz should secure the Nover-nber 1988 issue of "Smithsonian" magazine. It contains a IS-page article on quartz, in depth, including six pages of full-color illustrations of a number of quartz varieties. Most interesting and informative.

111at dianloods, emeralds, sapphires, tourmaline, rubies, and topaz all are formed from hardening of molten igneous rocks?

The ametltyst, turquoise, opal, and quartz are formed from the evaporation of underground waters?

That garnet and staurolite are formed by metamorphic processes whereby the minerals in the rock are recrystallized into different forms?

COPPER BRACELETS (Chips)

Is it true that copper bracelets relieve arthritis? This folk remedy has been in disrepute for several years, but now researchers have discovered there may indeed be something to it Copper, they found, reacts with skin chemicals to produce an anesthetic called "Ethylene" which can be absorbed into the body.

CLOISSONE (Shasta Gem & Mineral)

Cloisonne originated in Central Asia in the thirteenth centLlI)' but was refined and improved upon in China during the Ming Dynasty. The intricate technique begins by creating "cloisons" or cells. Enamels ground into a powder and moistened with water is laid into the cell<> and fired in a kiln. The process of filling is repe3led, layer upon layer. Each color is baked on separately to achieve a unique depth of color and shading. Finally, the piece is hand ground to a smooth finish and polished.

DID YOU KNOW (Desert Diggins) ~

Aquarnarine, diamond, gamet, jade, ruby, saphire, and tourmaline gemstone jewelry is durable enough for everyday wear. Jade is the most durable .of the gemstones. Amber, peasl, and turquoise jewelry scratch easily. requiring care when wom.

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'" 11

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Hl.lhhnu! Blvd"

Plliruuie St. (BDUIl!DCtIJ ODly)

ROD CLORE 573 Cherry Wy. Hayward, CA 94541

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