Tag: agate

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Rock Tumbling Subject of May 19 Meeting With Noah Urbina

Tuesday, May 19, 2026 at 7:00 p.m.

If you were ever curious about rock tumbling, now’s your opportunity to learn about it. For many, the process seems as if it might be hard but it is basically a creative process to make rocks smooth and polished-looking (as if nature had done the work) through the use of a rock tumbler. Rock tumblers can be rotating or vibrating machines to which grits and polish are put into a container with water and the rocks you want to make pretty or smooth. Noah will walk you through the process of tumbling so that you, too, can have polished rocks.

This program meeting takes place on Tuesday, May 19, 2026 at 7:00 p.m. in the Fellowship Hall of The Santa Anita Church, 226 W. Colorado Blvd., Arcadia, CA 91007. Admission is free; open to the public. Enjoy refreshments while checking out the display table. Bring a rock specimen you’d like identified – or maybe you have a special memory attached to one that you can share while you’re at the meeting. Hope to see you there!

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Pearls Take the Spotlight with Special Guest Renée Newman

March 17, 2026 Program Meeting Starts at 7:00 p.m.

A 112-carat abalone pearl was found in Sonoma County, California in 1990 by the late Wes Rankin. After the pearl was appraised at $144,000 by John Latendresse, Wes decided to go into the natural pearl business and started the Pacific Coast Pearls company. Abalone fishing has been illegal in California since 2018, in order to save the dwindling population of abalone. However, it is still allowed in Baja California, Mexico during non-spawning months. Besides briefly discussing natural pearls from California and Mexico, Renée’s PowerPoint presentation will also include other topics such as:

  • The American pearl rush
  • The highest priced pearls
  • South Sea pearls that resemble Chinese freshwater baroque pearls and how to distinguish them
  • How Australia became the first country to produce cultured saltwater round pearls
  • How pearl oysters improve our atmosphere and the oceans.
    And more.

Renee Newman GG (GIA) is the author of 16 books on jewelry and gems. Her interest in pearls developed when she was an international tour director and visited Japan, China, Australia, Indonesia, the Philippines, and French Polynesia. After obtaining her GG from GIA, she became a gemologist and jewelry control manager for the Josam Diamond Trading Corporation in downtown Los Angeles. Even though their focus was on diamonds, they realized that mounting diamonds with colored gems and pearls gave them a wider variety of jewelry to sell and higher profit margins. Armed with trade experience and gemological credentials, Newman decided to create books that helped readers visually evaluate the quality of gems. Since 1989, she has written fourteen books on gems and jewelry. Her latest book is Pearls: Their History, Sources, Types & Qualities. The books will be available for sale at the meeting for a discounted price. Bring cash or check. For more information about Renée and her books go to http://www.reneenewman.com. You can connect with her on Instagram @reneenewmangg and Facebook at www.facebook.com/renee.newman.

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, on Tuesday, March 17, 2026.

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. Buy a raffle ticket for a few bucks and try your luck at winning a cool rock specimen, slab, or otherwise. We hope to see you there!

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“The Colorful Condor Agates of Argentina”, Subject of September Program Meeting

7:00 p.m., Tuesday, September 16th, 2025

Our main speaker for the September program meeting will be Mary Pat Weber, geologist and mineral collector, who will present “The Colorful Condor Agates of Argentina”. She will present the amazing story of how these agates were discovered, lost, and re-discovered in a remote, inhospitable region high in the foothills of the Andes Mountains. Condor agates are colorful, tightly banded agates and patterned agates found in the mountains near San Rafael, in Mendoza Province, Argentina. This agate has become a popular stone among collectors and jewelry designers. Specimens of these beautiful agates from Mary Pat’s personal collection will be on display at the meeting.

Another Condor agate specimen. Photo provided by Condor Agate via Facebook.

There will also be a short talk at this meeting in the form of a recap of our members’ experiences at Camp Paradise, a CFMS-sponsored lapidary and jewelry camp. As a group, we attended every class offered this year. We learned new things and made beautiful projects. Camp Paradise offers two 1-week sessions each August for members of CFMS affiliated clubs such as Pasadena Lapidary Society. Come learn about this wonderful experience and make your plans for next year.

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.

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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Geode Presentation and Discussion on Clear Creek Management Area, Topics of May Program Meeting

Tuesday, May 20th, 7:00 p.m.

PLS member Armando Pedroza skillfully cutting a geode.

Pasadena Lapidary Society member Armando Pedroza has been cutting geodes for over 15 years at gem shows and club presentations. In our upcoming May general meeting he will be presenting and demonstrating his geode program. Geodes will be available for purchasing and he will be cutting them for those who wish to see the magic inside. Geode prices range from $10 to $90. The geode program will be outside on the patio.

PLS member Christian Schulze exploring potential finds at Clear Creek.

PLS member Paolo Sanchez will present a program on the Clear Creek Management area in San Benito County, California. It has been a popular spot for geologists, mineralogists and rockhounds alike for over a century. Part of a large geological feature known as the New Idria Serpentine Intrusion, this area is home to various rare and interesting minerals such as demantoid and melanite varieties of andradite garnet, plasma agate, jadeite, uvarovite, zeolites, as well as asbestos and mercury minerals. It is also where twenty new minerals were first discovered, including the California state gemstone, benitoite. With such a bounty of mineralogical wealth, what makes the New Idria Serpentine Intrusion so special? This talk will delve into the underlying geologic history of the area as well as the interesting minerals that make New Idria a unique place in the mineral world.

This program meeting starts at 7:00 p.m. in the Fellowship Hall of The Santa Anita Church, 226 W. Colorado Blvd., Arcadia, CA 91007. Come to learn and make new friends; open to the public, free admission. 

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Author Renée Newman to Speak on Diversity of Gems

Tuesday, Nov. 19th at 7:00 p.m.

Renée will provide a PowerPoint presentation that will include gems from California, Oregon, Washington, Arizona, Nevada, and Idaho. It will focus on the most notable ones such as tourmaline, jade, benitoite, sunstone, opal, turquoise, chrysocolla, fire agate and Four Peaks amethyst, and the places where they are mined.

Members of the Pasadena Lapidary Society are fortunate to live near areas with a diversity of gems. For example, the distance from Pasadena to the Oceanview mine in San Diego County is only 105 miles. There you can dig for tourmalines, kunzites, morganites, and aquamarines, and take a jeep tour of Chief Mountain where you can see the currently active mines. Historically that area was important. From 1898 until 1911, it was the world’s largest producer of tourmaline and it is still producing high quality material. Renée’s presentation will also briefly discuss other mining areas in the Western states.

Renée Newman is the author of books that show readers how to visually evaluate the quality of gems. She has written multiple books on gems and jewelry. The books will be available for sale at the meeting for a discounted price. Bring cash or check. For more information about Renée and her books go to www.reneenewman.com. You can connect with her on Instagram @reneenewmangg and Facebook at https://www.facebook.com/ renee.newman.5648/

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, on Tuesday, November 19, 2024.

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. Buy a raffle ticket for a few bucks and try your luck at winning a cool rock specimen, slab, or otherwise. We hope to see you there!

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PLS Members’ Field Trip ‘Show and Tell’ Experiences Subject of Tuesday, October 15th Program Meeting, 7:00 pm

Location: Fireside Room at the Santa Anita Church

The Pasadena Lapidary Society October General Meeting will be held in the Fireside Room because our regular room is going to be used for election training. As PLS President David Lacy phrased: “the meeting will be very cozy”. It would be difficult to set up a slide show in the Fireside Room or outside depending on the weather, so we will not have an invited speaker in October. Instead, we will feature three of our club members — Sue Dekany, Curtis Kan and Daniel Nishimura — who will give ‘show and tell’ talks about recent
field trips to the Clear Creek, CA area, the Dead Camel Mountains, NV and McDermitt in OR/NV. Daniel’s upcoming speech is going to be about his adventure collecting Wonderstone in the Yellow Mountains near Fallon, NV.

This program meeting takes place on Tuesday, October 15, 2024, at 7:00 p.m. in the Fireside Room 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. We hope to see you there!

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Stone Stories — Rocks and the Legends Associated With Them

PLS member Janie Duncan is featured speaker for the April 16th Program Meeting; 7:00 pm

A chunk of Actinolite collected from a memorable
visit to Wrightwood. Photo courtesy E. Weston

Every stone has a story. Maybe it is how it was formed or why it has a specific shape or color. Sometimes a rock tells a story that is sentimental. Do you remember the day you found a rock or perhaps someone gave one to you as a gift? Some stones have ancient fables or myths passed down for hundreds of years attached to them. Almost everyone owns a few rocks that are special to them in some way. PLS member Janie Duncan will be our featured presenter as she discusses stones and the stories they tell.

This program meeting takes place on Tuesday, April 16, 2024 at 7:00 p.m. in the Fellowship Hall of The Santa Anita Church, 226 W. Colorado Blvd., Arcadia, CA 91007. Admission is free; open to the public. Enjoy refreshments while checking out the display table. Bring a rock specimen you’d like identified – or maybe you have a special memory attached to one that you can share while you’re at the meeting. Hope to see you there!

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Spotlight on Tumbling (Rocks, That is) for February 20th Program Meeting

Pasadena Lapidary Society (PLS) members provide this month’s program at 7:00 p.m. , Tuesday, February 20, 2024 — FIRESIDE ROOM (not Fellowship Hall) of the Santa Anita Church

Rock tumbling is the process of polishing rocks and minerals in a rock tumbler. This involves adding stones or minerals to the rock tumbler along with some abrasives, such as grit, fillers, and water. Phil Lahr will give a presentation on tumbling, discussing the basics – machines, grits, and processes involved. He will also have samples of rock polishing at various stages so you can see and feel the difference from one stage to the next. This is a great educational program for new rockhounds, and a refresher for older ones.

As part of our observance of PLS’ 75th Anniversary this year, Nancy Robb plans to continue her talk on PLS’ history.

Our Rock of the Month talk for February will be presented by Sue Pang as she discusses this month’s birthstone, Amethyst.

This program meeting takes place on Tuesday, January 20, 2024, at 7:00 p.m. in the (**DIFFERENT ROOM, SAME ADDRESS**) FIRESIDE ROOM 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. We hope to see you there!

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QUARTZSITE Here We Come!


Pasadena Lapidary Society members will once again be joining the ranks of rockhounds and lapidarists across the nation – and beyond – in an annual sojourn to our ‘mecca’ of rocks – Quartzsite, Arizona. While this isn’t a fieldtrip that requires a rock hammer, shovel or other tools, it’s a great opportunity to see what wonderful gems and minerals exist in our world – all in one place. There are several gem and mineral shows which are held between December and late February in this town, which swells to over a million visitors in the month of January from a paltry 3,714 +/- residents the rest of the year. One of our favorite shows to check out is the QIA Pow Wow, which takes place from January 17 – 21, 2024, with free admission and free parking and way more than a day’s worth of treasures to see. It’s like a giant open air swap meet held under the beautiful blue sky with giant puffy white clouds floating overhead – which sometimes open up with a quick light rain or a heavy shower – then dissipates as quickly as it starts. Quartzsite is just 18 miles east of the California border, along Interstate 10. One can make it a full day trip, or if you’re able to secure lodging in Quartzsite, AZ or Blythe, CA, turn your visit into more than one day so you can visit the other shows taking place as well, such as Tyson Wells or Desert Gardens. If you prefer to take an RV and camp, there’s plenty of open space just on the outskirts of town. How to get there? Take I-10 East until you get to Quartzsite, about a four hour drive from Pasadena when traffic isn’t bad. We often make a quick stop at Chiriaco Summit either on the way to or from AZ, where one can fuel up and stop for a bite or snacks.

And the rockhound fun doesn’t stop with Quartzsite… read further about the big Tucson Show (the 2023 event is the subject of our January 16 Program Meeting) coming February 8-11, 2024.