April Bower | Organic Open Spiculum | Thursday, January 26, 2023 | 9:00 am until 4:30 pm


a Spiculum is a hollow pointed tubular anticlastic formed shape you will love to make!

Learn to make a textured closed spiculum shape in copper and make another open style version into a fun & wearable necklace with a tube set stone and a soldered tubular bail.

 Featured techniques:

  • forming spiculums
  • knowing the tools necessary and how to make or improvise your own
  • textures
  • soldering, assembly and connections
  • Tube setting a facetted stone
  • finishing techniques/ patinas

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SKU: DESERT-APRIL-1-26-2023 Categories: , ,


Instructor:    April Bower

Title of Class: Organic Open Spiculum

Date of Class: January 26, 2023

Time: 9:00 am -4:30

Level (*All – Experienced Beginner/ Intermediate) * must be able to saw &  be comfortable with a torch to solder

Type combination of technique and project

 Class Description: Class Fee: $

Kit Fee: $47 or $60 for all sterling version

sterling curved tube bail

Sterling tubing for stone setting

 5 mm CZ

copper sheet for 2 spiculums             OR

Sterling sheet option

* 0000 steel wool and pro polish pad

Studio Tools


flux: white paste kind for Red Heat Patina like Handy Flux


Polishing lathe

flex shaft and burs for cleanup and polishing.

Rolling mill to texture

Student Supply List 

bench pin and clamp

Smooth anvil or bench block

leather  or non-mar mallet,

planishing hammer or very smooth smaller metal hammer to close spiculums (closing hammer)

    example: NC Black closing hammer

Grooved wood block or “Whammer”

Chain nose pliers

Flat nose pliers

round nose pliers

 metal shears

 6″ flat file or inside ring file (flat one side, half round other side)

sanding sticks

safety glasses,

Sharpie pen ,

(your usual hand tools: saw & blades, side cutters, ruler, scribe, pliers,  optivisor, dust mask

Optional  so you don’t have to share

any nylon cross peen forming hammers you may have ( smaller metal cross peens will do in a pinch) Fav texturing tools / texturing hammers

black silicone wheels. Are great for all around abrasive clean up with your flex shaft. Get the mandrel too as it doesn’t come with it. Flat edge shape is very useful too.

Instructor Email Address: AprilBowerjewelry@gmail.com

Instructor Website: www.aprilbower.com



Many of our students have asked us to help streamline the process of gathering their supplies and tools for classes, and we have come up with a way we think will work for you.

SJ Jewelry Supply in Phoenix is owned and operated by a wonderful family, headed by Mario Morales. His wife, Erika, and son, Steven, round out the staff, and they are excited to help make gathering your supplies easy and stress free. We guarantee they will make life easier for you! No kidding!

Here’s how it will work….

  • Once you have determined what you will need for each class, send an email with your request for products and/or tools to SJ Jewelry Supply
    • Go to our website, open the class description for each of the classes in which you are enrolled, scroll down to the section “Student Supplies,” cut and paste the items you want to purchase into an email to Mario.
    • Here’s their email address mailto:info@sjjewelrysupply.com
  • When they receive your email, they will send you a return email acknowledging receipt of your request
    • In this email, they will instruct you about payment methods 
  • Once your order is filled, they will send you a second email with confirmation stating your order is complete
    • Included in this email, they will give you instructions on how to pick up your orders upon arrival in Tucson

 Sound easy? We think it’s going to help take the stress out of preparing for classes!