Obsidian Featured Presentation for Tuesday, April 20, 2021 Program Meeting; 6:30 p.m.

Obsidian is a popular lapidary material to collect and cut. Join Pasadena Lapidary Society at the April general meeting, as lapidary artist Terry Wilson takes us on a virtual trip to Davis Creek and other obsidian collecting locations, updating us on collecting site regulations. Terry will share tips on how to inspect the obsidian in the field and back at home. She will also demonstrate how to line up, slab and cab the material to bring out the best of their unique optical properties, including how to cut a cab exhibiting the cat-eye effect.

Obsidian with Silver sheen banding.
Snowflake Obsidian

The April Rock of the Month will be presented by geologist, Dick Weber.  Dick will take us on a tour of a hidden treasure: the Petrified Wood museum of Nebraska.

Join us virtually for the April 20 Tuesday night meeting by RSVPing to joenmar1[at]verizon.net for a Zoom meeting link, using ‘PROGRAM MEETING’ in subject line.

Explore the Geologic Diversity of New Zealand; Virtual Program Meeting March 16, 2021, 6:30 pm

Glacial deposits: moraines of till and moraine-dammed lakes; glacial erosion, U-shaped valley and glacial horn and arete (Aoraki / Mount Cook in background). geologictimepics.com

Pasadena Lapidary Society’s Tuesday, March 16 program meeting will feature geologists Dick and Mary Pat Weber, whose presentation will focus on the geological wonder of New Zealand. From volcanoes to glaciers, caves and fjords, finding so much variety of terrain in such a small geographical area would be impossible anywhere else on Earth.

Paparoa National Park; NewZealand.com

The Webers are exploration geologists who spent a month in 2007 visiting every corner of this tiny island nation; they have worked and travelled extensively in North America, Australia and New Zealand.

Ferdinand von Hochstetter’s map of the Auckland volcanic field (1859); Wikipedia

Our program meeting will also feature the Rock of the Month, by PLS member David Lacey, whose presentations are always informative.

Interested in joining us virtually for Tuesday night’s meeting? Then RSVP to joenmar1[at]verizon.net for a Zoom meeting link, using ‘PROGRAM MEETING’ in subject line.

Focus on Ametrine for Tuesday, February 16th

Join us for our next virtual general meeting on Tuesday, February 16th. We will be joined by our friend, Professor George R. Rossman. Professor Rossman will highlight the troubled history of Ametrine. Specifically, he will discuss the controversy that developed about ametrine early on, and his personal experience traveling to Brazil amethyst mines, the Bolivia ametrine mine, and Russia where synthetic ametrine was produced. RSVP to joenmar1[at]verizon.net for a Zoom meeting link, using ‘AMETRINE’ in subject line.

The Rock of the Month will be presented by PLS member Phil Lahr, who will discuss “Tumbling through the Pandemic” – a personal journey of rock tumbling triumphs and tragedies during the summer of 2020.

Rhodochrosite Focus of February 18th Meeting

Rhodochrosite is so popular with members of Pasadena Lapidary Society that we’re bringing back a two-part video featuring the mining and geology of this lovely mineral. Part One will be presented at the Tuesday, February 18th program meeting. Rhodochrosite is a manganese carbonate mineral that ranges in color from light pink to bright red.

The February Rock of the Month Talk speaker is PLS member Karl Stull. Karl will share some tips and ideas for organizing a co-op display case for Pasadena Lapidary Society’s Annual Gem Show, coming in April.

June Events

June 9th – 2019 Show Committee Meeting at Peppertree Cafe, 1020 E. Rte. 66, Glendora beginning at 11:00 am

June 10th – Workshop

  • At the PLS Workshop Rock Carving for Beginners – Have you ever thought you might like to try your hand at making a cameo or other pictorial carvings? There’s a great opportunity coming to the PLS Workshop this summer, starting this Sunday, June 10.

June 16th – 2018 Picnic

June 19th – Program Meeting 6:30 pm – 8:45 pm Pasadena Central library

  • Paolo Sanchez- Micrometeorites and where to find them
  • Alyson N – Blue Forest Petrified Wood Deposit in Wyoming