Oblique Right Angle Triangular Pyramid Geometric Thingamajigs...

Posted by Terry Alers on

Say What?!!  I mean... yeah, probably not a great name for earrings, hehe.  

I recently made these Copper & Crystal Twisted Bar dangling stick earrings and then set about trying to learn what this geometric shape is called.  In jewelry making this technique, (where each end of a round wire is hammered flat on opposing planes), provides the look of a half twist with tapered ends, but I feel like "twisted bar" is a misnomer because the bar (or wire) is not actually twisted at all.  I have a similar objection about spirals described as "twists" also, but that I can understand a little better; we call tornados "twisters" after all. (But they really are whirling spirals, haha!)

Looking closely at these twisted bars, one can see a triangular surface (or plane) on each of the four sides. This is known as a triangular pyramid.

Copper & Crystal Twisted Bars Drop Earrings

These triangular pyramids are also oblique, because the top point is off center. But unlike how most typical oblique triangle pyramids appear, these are extremely oblique with the shortest sides nearly at right angles causing it to appear as if there are two wedges flipped with their tallest point at opposite ends. The forth point of the base is very close to the top point, making it appear almost rectangular when viewing the 2D image of two sides at once.  Confused?  Me too!

Anyway, twisted wire is a real thing and it is not this.  Yet "twisted bar" seems to be the industry term for this technique. I think it really should have another name (though maybe not "Oblique Right Angle Triangular Pyramid Geometric Thingamajigs"!)

This look is beautiful in its simplicity and the twisted bar technique is often used to make connectors and links found in some dot-dash-dot-style jewelry chains.  

I will need to invest in some better equipment if I hope to make any more like this pair.  Quite a bit of labor went into the hammering, distressing, filing, drilling, sanding, buffing, and polishing--but I am quite pleased with the results!

Share this post

← Older Post Newer Post →


  • Cee! Thank you, my friend! <3 I’m also just discovering that my website doesn’t notify me if someone comments on my blog posts… I’ll have to investigate why that is. Thank you for commenting and for your compliment! Tiny bejeweled oars… yes! I love that :D

    terry on
  • Great post! I learned something new, which I try to do each day (at 52, it’s not that easy!). The earrings are really pretty; I imagine them as miniature bejeweled oars for a tiny boat! Keep up the great work, my friend.

    Cee on

Leave a comment