Beads and Yarn

Classes & Events


Anticlastic Jewelry

Wednesdays, September 15, 2021 - October 6, 2021, 2:00PM - 5:00PM PT (Pacific Time)

In Person Class

Cost: $340.00

SOLD OUT! See below for other workshop dates.

Online Class

Cost: $310.00

SOLD OUT! See below for other workshop dates.

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What is anticlastic forming? In this class, learn foundational techniques about how metal moves and creating volume from a flat sheet with a hammer and stake! From small intricate jewelry to larger sculptures and vessels, these techniques can be scaled once learned to suit your work. We will be covering not only creating open forms, but hollow forms as well.

Anticlastic forming, also known as shell forming, encompasses the basic structures that metalsmiths of antiquity used to make hollowware like goblets and teapots. Pod forms, lily forms, shallow bowls, and hollow bangles are all examples of shell forming techniques.

Open the world of beautiful organic flowing forms with this class!

Techniques covered include:

  • What is anticlastic shell forming?
  • Understanding the types of shell forms and their variations
  • Tools for anticlastic forming
  • Creating an open and closed torus (donut shape) ring or bangle bracelet
  • Variations on the torus shape
  • Exploring open ribbonwork forms
  • Creation and forming spiculum (pod) shapes
  • Hollow fabrication skills with anticlastic shapes including designing, fitting, and soldering
  • Finishing techniques for anticlastic jewelry


This course is available as an in-person workshop or live online class, and as a 4 week course or 2 day workshop. Please check this page for times and formats available.


A kit of materials is included with this class.

Online students will have kits mailed to them. Kits for in-person students are delivered at the beginning of the first class. International students may be charged an additional amount for shipping, because of the increased cost to ship abroad. Also, shipments to other countries may incur a tariff payable by the student. International students are welcome to contact us re: these costs and options for their materials. 


Please review our COVID-19 guidelines for in-person students. 
For the health and safety our staff and students, students are required to show proof of vaccination and to wear masks when attending classes at our school. If you can’t meet these requirements, we invite you to take the online version of this class instead, if available. Please visit our COVID-19 Updates page for more information.


Recordings of class.
If a class is online, or is a combination online and in-person session, all students receive a link to a recording of the class demonstrations. In-person only workshops are not recorded.


Classes at our school include use of tools, with each student having their own bench to use during class. Online students will need to have their own tools (see the list of tools below).  Feel free to contact us with any questions. 


Tools Required for Online Students
This is a list of tools online students need to practice the techniques shown in class. (in-person students have tools to use at school)

A list of tools with links to recommended suppliers for the best prices will be sent to you after registration. If you have questions about the tool list, please contact us.

  • Bench pin
  • Saw frame
  • Saw blades 4/0
  • 1mm drill bit
  • Soldering setup
  • Torch- large butane, acetylene/air, fuel/oxygen
  • Nylon cross peen hammer
  • Riveting hammer or goldsmiths hammer (one cross peen + one flat face)
  • Bench vise
  • Sinusoidal stake
  • Steel bench block or small anvil
  • Flexshaft or dremel
  • Sandpaper
  • Scotchbrite
  • Half round file
  • Needle files
  • Round/flat forming pliers
  • Half round/flat forming pliers
  • Wire cutters
  • Ring mandrel

A computer, phone or tablet to use the free Zoom app for class

Read what students have to say about our online classes on the testimonials page.

About Our Interactive Online Classes
If this class is offered online, it uses the Zoom app/website. Through Zoom, you’ll be able to see demos and follow instructions, ask questions and interact with your instructor. Zoom is easy to use and free for students to use for class, and works on most devices, like phones (iphone, Android, etc), tablets (iPads, etc), and computers (Mac or PC).

Your instructor is alos available during free Zom office hours for questions and help. 

Online students work at home or in their studio. All of our recommended tools and the kit materials are chosen to be home studio friendly. Links to preferred vendors are provided in the supplies list sent after registration

Class policies for refunds, transfers and cancelations.


 Basic fabrication skills are needed.

Location: Silvera Jewelry School, Berkeley, CA

Instructor: Jenn Parnell Kirkpatrick

Upcoming Schedule

No upcoming occurences at this time.

Anticlastic Jewelry

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