Geode Mold with Cutout


Flexible & durable Use with variety of materials
Re-use up to 30 times Use between -53°C ... +232°C (-65°F ... +450°F)

Silicone mold for epoxy resin and polymer clay for making oval agate with cutout shape castings. Suitable for creating coasters, decorations.


This mold has one cavity in a shape of an oval agate cut.

You can choose the thickness and shape of the lens in options. Item made with this mold has the following dimensions:

  • Size: 130 x 98 mm (5 1/8″ x 3 7/8″)
  • Thickness: 6 or 10 mm (1/4″ or 3/8″)

Two options for the shape:

  • Option 1: bigger cutout; size of the cutout 30 x 28 mm (1 1/8″ x 1 1/8″)
  • Option 2: smaller cutout; size of the cutout 28 x 18 mm (1 1/8″ x 3/4″)

Surface: front main surface is glossy. The surface might have small imperfections. The side surfaces are glossy. Side surfaces might have small imperfections.
The color of the silicone will be green or blue.


All of our silicone molds are flexible, resistant to tearing, and are durable in use.

You can use silicone molds with the following materials:

  • Resins
  • Epoxy resins
  • Polymer clay
  • Soap
  • Wax
  • Low-temperature melt light metals
  • Plaster
  • Gypsum
  • Concrete

Useful temperature range for molds: from -53°C to +232°C / from -65°F to +450°F.

Check FAQ for more detailed information (materials to be used with the molds, care instructions, etc).

Please, don’t hesitate to contact us if you have any questions!

Additional information

Dimensions 130 × 98 × 10 mm


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Food Safe








Option 1: bigger cutout, Option 2: smaller cutout


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