Tag: rockhounding

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Diamonds?… In California?… and Just About Everything Else You Might Want to Know About a ‘Girl’s Best Friend’

Tuesday, November 15 Program Meeting, 7:00 p.m.

For our November Program Meeting, we’re delighted that Renée Newman will be our speaker, providing images and information in her presentation on Diamonds that includes, among other things, the most significant discoveries of rough diamond crystals, five basic diamond crystal types and their relative value from highest priced to lowest priced, where to find diamonds in the U.S., and what American diamonds look like in the rough in order to help you spot them while prospecting and rockhounding.

Renée has a book out entitled Diamonds: Their History, Sources, Qualities and Benefits and much of her presentation is reflected in her book.

Renée Newman developed her interest in gems while conducting tours to Asia, South America and the South Pacific. Her passengers wanted information about the gems that were displayed in hotels and stores so she signed up for a colored stone grading course at the Gemological Institute of America (GIA) in order to be able to answer their questions. The teachers there inspired her to complete the GIA colored stones and diamonds program.  

After receiving a graduate gemologist diploma from the GIA, Renee was hired as a gemologist at a diamond wholesale firm in downtown Los Angeles. It provided hands-on experience grading diamonds and selecting colored gems and pearls for their jewelry. Armed with trade experience and gemological credentials, Renée decided to create books that showed readers how to visually evaluate the quality of gems. Her first book, the Diamond Ring Buying Guide, was published in 1989. Since that time, she has written thirteen more books on gems and jewelry, including the Diamond Handbook geared to trade professionals and her new large-format book Diamonds: Their History, Sources, Qualities and Benefits. Information about it is available at http://www.reneenewman.com/diamonds.htm

Renée’s books are used as consumer guides, gemology course textbooks, sales training tools and appraisal references and are listed at www.reneenewman.com/books.htm.  Renée will be selling her books at a discount and autographing them before and after her presentation. Bring cash or a check if you would like to purchase copies of them.

PLS member Curtis Schurer will discuss Jasper for the Rock of the Month presentation. Jasper is an opaque, impure variety of silica, comes in several colors, and is often found in the Mojave Desert.

This program meeting takes place at 7:00 p.m. in the Fellowship Hall of The Santa Anita Church, 226 W. Colorado Blvd., Arcadia, CA 91007. 

Come join us! Doors open at 6:30, admission is free; open to the public. Enjoy refreshments while checking out the display table; bring a rock specimen you’d like identified. See you there!

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PLS Booth at Barnhart School Carnival in Arcadia – Saturday, October 22, 11 a.m. – 4 p.m.

Bring the kids to the Barnhart School Carnival this Saturday, have some fun with the carnival games, enjoy food and drinks, check out the vendors, and stop by the Pasadena Lapidary Society booth while you’re at it.

We’ll be featuring do-it-yourself ‘My Rock Collection’ kits. Youngsters (and adults as well) can choose from an assortment of mineral specimens that we’ll have on hand and compile their own kits. This makes a fun first step toward a future interest in rock collecting as a hobby and/or Earth Sciences as a vocation. These rock collection kits were a huge hit at our August gem and mineral show this year.

The Carnival will take place on the Barnhart School property at 240 West Colorado Boulevard in Arcadia. CA 91007. barnhartschool.org

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A Magical Evening is in Store for October 18 Program Meeting, 7:00 pm

Join us at our Tuesday, October 18 Program Meeting where award-winning mixed-media artist Linda Queally will discuss the rich history of Pearls in the Americas, and how they’ve been associated with Mermaids since the first Siren’s Song was heard.

Linda works in acrylic and fine art paper on claybord in her vibrant mystical paintings, and with cultured pearls and mixed metals in her simple, elegant jewelry designs. She studied Art and Design at Otis Art Institute in Los Angeles, is a Certified Pearl Specialist with the Cultured Pearl Association of America, and holds a Certificate of Gemology from Santiago Canyon College in Orange. 


This program meeting takes place at 7:00 p.m. in the Fellowship Hall of The Santa Anita Church, 226 W. Colorado Blvd., Arcadia, CA 91007. 

Join us for an enchanting evening! Admission is free; open to the public. Enjoy refreshments while checking out the display table; bring a rock specimen you’d like identified. See you there!

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Jewelry Artist Gabriel Mosesson Guest Speaker for Tuesday, September 20 Program Meeting

A beautiful pendant of Ethiopian Opal designed by Gabriel Mosesson.

If you’re an Opal or Emerald lover and find yourself purchasing these gorgeous gemstones on their own, as well as set in jewelry pieces, perhaps you’ve met Gabriel Mosesson, a gem cutter and jewelry artist who offers his beautiful treasures for sale at many bead/gem/jewelry shows in Southern California. He was most recently at our annual Tournament of Gems, which ran just two weekends ago (8/20-21).

Wow, what a striking piece! Emerald pendant by Gabriel Mosesson.

Gabriel travels to Ethiopia to hand-select the highest quality rough opals and emeralds directly from the mines, then he brings them back to his Los Angeles studio to cut or hand-carve the gemstones, designing them into one-of-a-kind settings. He just recently returned from one of those trips and will tell us about it and the beautiful emeralds and opals found in Ethiopia for our September meeting presentation.

This program meeting takes place on Tuesday, September 20, 2022 at 7:00 p.m. in the Fellowship Hall of The Santa Anita Church, 226 W. Colorado Blvd., Arcadia, CA 91007.

Join us and prepare to be dazzled! Admission is free; open to the public. Enjoy refreshments while checking out the display table; bring a rock specimen you’d like identified. See you there!

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In-Person Program Meeting April 19, 2022, 6:30 PM

We are having our first in-person program meeting in over a year! PLS member Janie Duncan will provide a presentation on the History of Beads Tuesday night, April 19, and members are looking forward to seeing each other in the flesh for a change, instead of virtually. Check out our Meetings page to get directions and further info about the location. We are VERY excited!

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Gem Pegmatites of Southern California Subject of March 15 Virtual Program Meeting with Walt Lombardo

Zoom Meeting starts at 7:00 p.m., Tuesday, March 15, 2022

Walt Lombardo, Owner & Founder of Nevada Mineral & Book Co., located in Orange, Calif.

Southern California is known worldwide for the production of gemstones and mineral specimens from the granite pegmatites in San Diego, Riverside & San Bernardino counties. Some of the more well-known gem minerals are Tourmaline, Garnet, Aquamarine, Morganite, Kunzite, Quartz, Topaz and Lepidolite. Most notable are the Pala and Mesa Grande mining districts, which supplied beautiful tourmalines to the last Dowager Empress of China in the early 1900’s, and continue to produce world-class gems and mineral specimens today. Our program speaker this month is Walt Lombardo, a geologist with over 35 years experience related to mining and mineral exploration. Walt’s talk will include discussion of the regional geology which made these deposits possible, history of mining in Southern California, some of the more important mines, and the gem minerals that they produced.

Meeting starts at 7:00 p.m. If you’d like to join us, write marcia.pls.emails [at] gmail [dot] com to request a Zoom link.

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January 18 Virtual Program Meeting Explores Crystals

Pictured above: Actinolite, Quartz point, Axinite. Can you identify the other four?
Photo credit: PLS member Elizabeth Weston

Our Tuesday, January 18, 2022 Program Meeting will be held via Zoom. PLS member David Lacy will provide the evening’s presentation as an overview of Crystals and Crystal Forms.  We will look at the differences between geometrical (ideal) crystal forms and some of the crystal habits in nature, where geometric forms meet the real world.  We will check on just what are the characteristics of a crystal, what is a crystal habit, symmetry in crystals, and the seven crystal systems met in nature.  Some mineral specimens will be visually shared to demonstrate real-world crystal habits. Meeting starts at 7:00 p.m. If you’d like to join us, write marcia.pls.emails [at] gmail [dot] com to request a Zoom link.

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Tuesday, Nov. 16 Virtual Program Meeting Explores the Chixculub Impact Event with Paolo Sanchez; 7:00 p.m.

Pasadena Lapidary Society’s very own future geologist/geophysicist, Paolo Sanchez, will present “Traces of Extinction: The Search for Rocks and Minerals at Chixculub” for our November program meeting. For those wondering what the heck ‘Chixculub Impact Event’ is, think meteor meets dinosaurs. Paolo will present his current ongoing research examining tektites derived from Chixculub and what their respective chemistries tell us about the minerals and lithologies associated with the impact event, with the potential of understanding the lithology of the meteor itself.

Earlier this year, Paolo was awarded the California Federation of Mineralogical Societies’ (CFMS) Robert O. Deidrich Memorial Fund Scholarship for school year 2020-21. He’s been studying geosciences at UC Berkeley, working his way up to a PhD and possibly obtaining a career as a professional researcher.

There will be no Rock of the Month discussion for this meeting.

The Tuesday, Nov. 16 program meeting starts at 7:00 p.m. via Zoom. To join us, send an email to (new email address!)… marcia.pls.emails[at]gmail.com in advance, using ‘PROGRAM MEETING’ in subject line, and request the Zoom meeting link. We’re looking forward to seeing Paolo – and hope to see you virtually as well!

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Time to Go to the Sierra Pelona Travertine Claim

Whether it’s planting a new tree for the garden or extracting a boulder while mining, there’s something satisfying about digging and rocks.  No, I’m not talking about hard rock mining, for that is pure torture.  I’m talking about the Sierra Pelona claim out in North Edwards, CA, a renowned location for prize winning travertine onyx.  The only difference is that while rocks are the bane of any happy garden, the goal at the Sierra Pelona is using a pry bar to make that rock wiggle and finally extracting it in triumph.

Though hundreds of clubs and rockhounds have visited the claim over the years, this location still produces hundreds of pounds of quality travertine onyx. 

On our last visit October 30th, we were able to excavate one hundred pounds of travertine in about 2 hours.  That’s a pretty good haul for any rockhound and the colors were spectacular.  I hadn’t seen the greens that color in a few years, but it looks like the seam is into a green band right now.  Greens, reds, and even blue bands of agate make beautiful spheres or cabochons. 

The claim is open to rockhounds everywhere and though access is fairly straightforward, you’ll need a high clearance vehicle.  This is a great trip for an experienced miner or just a weekend warrior who wants to get out and smell the dirt.

The weather is cool and it’s time to get out your picks and shovels and go rockhounding.   No one knows when the green banding will run out again, so plan your next trip with your local rockclub to collect this beautiful material.

‘til next time,

Rex