;

Monday, November 8 at 7:30pm
HYBRID Meeting

IN PERSON
IN THE MULTI-PURPOSE ROOM AT CULVER CITY VETERANS MEMORIAL COMPLEX

Or participate on ZOOM

MASKS REQUIRED THROUGHOUT THE VISIT AT THE IN-PERSON MEETING

Gems and Technology

Presented by Dr. George Rossman

 

 

 

Golden Beryl

Blue Beryl

Irradiated Tourmaline

For as long as recorded history, the gem minerals have been valued as objects of great beauty. Because of their great value, they have also been objects of research with the objective of improving their color. Many technologies dating back to ancient times have been applied to the modification of the color of the gemstones. Such technologies may involve nothing more than simple exposure to light and heat. Modern, hightech methods are also used to modify gemstones that range from highly controlled oxidation/reduction reactions to the methods of nuclear physics.

Professor Rossman has studied these technologies and the underlying changes to the chemistry of the minerals with a range of spectroscopic and analytical methods. He will present a colorfully illustrated look at the gems as they come out of the ground, the treatments to which they are subjected, and a bit about what we know about the fundamental changes to mineral’s chemistry. Is any stone immune to such treatment?


Come and hear what the wizards of chemistry can do to some of nature’s most beautiful objects with technology both modern and traditional.

Congratulations to Professor Rossman, 2021 Roebling Medal recipient, the highest recognition given by the Mineralogical Society of America. You can learn more about it here.

Submitted by
Ken Rogers
Programs Chair

Zoom One-click login:

https://zoom.us/j/3108364611?pwd=WnRTclZTS3RJMEdWdlV2c01mQWxqdz09

Manually key in:
Meeting ID: 310 836 4611
Password: rocks

Zoom Instructions
Zoom can be used on a computer, tablet, or smartphone. If you do not have a webcam or smartphone, you will still be able to participate. You will view the presentation with any computer, and may call in with a regular phone to take part in the discussion.

You can install the Zoom app on your device from their website, or the appropriate app store:
Zoom Website
Apple Store
Google Store

Future Meetings

TBD

    General Meetings are held the second Monday of every month* at 7:00 p.m. - September 2021 meeting is both via Zoom AND in person at the Multi-Purpose Room in the Veterans Bldg., 4117 Overland Ave. The Multi-Purpose Room is located in back of the Veteran's Memorial Auditorium Building. When you enter the parking lot (from Culver Blvd - closest to Overland Blvd) walk to the right when facing the building. Around the corner, you will a sign leading to the Multi-Purpose room. Follow the sign and our meeting is in the room with all the glass windows and doors.

MASK REQUIRED AT DURING THE ENTIRE VISIT IRRESPECTIVE OR VACCINATION STATUS

AND ON ZOOM

See you there!

*) Except if it falls on a federal holiday, Saturday and Sunday of the annual Fiesta of Gems show, and the day of the annual picnic.

Guests are always welcomMeeting Room Mape.....