How to make geode art

How to make geode art DEFAULT

DIY 3D Resin Geode Canvas

Have you all seen resin geodes? When I first saw a resin geode on instagram my thoughts were “I need this in my life.”

I’ve had some experience with epoxy resin after I resurfaced our kitchen countertops. Since then I have even done a few jobs for others.

So I began searching for a “how to make a resin geode” tutorial. I found the BEST resin geode tutorial lady! She is amazing and her youtube channel is very new and very good! She’s great at explaining things, taking time on the pours, and speeding up the slow parts. Here is her youtube channel link. Her name is The Frugal Resinista. Another great fact is that she is great about knowing how to save money making resin geodes! Did you know you can purchase some of the stones for the center from Dollar Tree? Yes, Dollar Tree! The link I’ve linked you to above is the exact video I watched to make the resin geode pictured here. 🙂

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Class is FULL Class reopens 3/1/20

how to make a resin geode on canvas

Affiliate disclosure: “This post contains affiliate links, which means I receive a small commission, at no extra cost to you, if you make a purchase using this link.”

Supplies to make a Resin Geode On Canvas

  1. 16×20 canvas – Large canvas for resin geode (These are a great price on Amazon, and you get 2!)
  2. 8×10 canvas – Smaller canvas for making Geode 3D
  3. 2 screws and a drill
  4. Acrylic paint colors – To mix in the epoxy (great price for ALL of these colors;)
  5. Gold Paint Pen – For drawing accents on hardened epoxy
  6. Crushed Stones – for the inner part of the geode
  7. Hot Glue gun – To glue down stones
  8. Epoxy Resin
  9. Optional- Sand
  10. Pop sickle sticks and plastic cups for mixing resin.
  11. Heat Gun

Steps to making a 3D resin Geode

Turn the 8×10 canvas to the side with the wood facing up. Place the 16×20 canvas over the 8×10, making sure to match the 16in. side with the 8in side. Drill 2 starter holes, and screw your 2 screws into the canvas. ( You are creating a pocket to set crushed stones in.)

how to make a resin geode 3d on canvas

After screws have been placed and the 8×10 is attached to the 16×20 canvas, you are ready to hot glue your stones! BUT FIRST: cut a slit into your 16×20 canvas. Make the slit similar to a cresent or half moon shape. Hot glue the canvas down that you have cut. Once the slit as been cut and hot glued to the canvas you are ready to add your stones!

At this point you should have a 16×20 canvas facing up with an 8×10 canvas attached to the back of the larger canvas, as well as a large crescent shaped cut and glued down. Begin hot glueing stones to the inside middle of your Geode. Fill with desired amounts of stones. 🙂 You can use as many colors and as many stones as you would like. 🙂 Make sure to take stones all the way over the edges of the cresent shape.

how to hot glue stones for a resin geode

If you feel at all lost make sure to watch The Frugal Resinista youtube video!

how to make a resin geode

When stones have all been placed you can begin by mixing your epoxy. (In the linked video I show you how to mix epoxy.) Epoxy is a resin and a hardener. You’ll need to measure equal parts making sure to have a 1:1 ratio. Mix epoxy with plastic cups and popsicle sticks. I always mix my resin for at least 2 minutes. Making sure your resin is mixed properly is important because you do not want sticky resin.

After Resin has been mixed you can add your colors! I generally make a large batch of resin and divide it between little cups so that you can add colors to the individual cups. When you add colors, you’ll want just a small amount of acrylic, just enough to give the resin the right color. Too much color can make a thick somewhat powdery resin. When resin colors have all been mixed you can start to pour! YAY!

I started to pour my resin right around the geode itself, alternating different colors as I went. If you follow the shape of the Geode you’ll naturally make this geode canvas art. It kind of lays a road map out for you!

When all of your resin colors have been poured onto your canvas you’ll want to take a heat gun to pop any bubbles. (Be careful!)

After bubbles are popped sit your Geode Canvas art in a safe place away from kiddos so that it can dry! I used epoxy that takes 24 hours to dry. (Because I resurface countertops that is what I had on hand) BUT, they do make art resin and it cures in about 15 minutes.

CLICK HERE for the link to Art Resin

The next day when the resin has fully hardened, you can take your paint pen and following the natural pattern of the resin begin to make lines. This is great because it’s an easy way to add skinny lines of detail. When you are pouring resin it can be hard to control how the resin flows. If you have it too thick in one spot a paint pin is a great way to break up that block.

PRO TIP: Mix a little clear resin and pour into the center of the crushed stones to optimize their adhesion!

how to measure epoxy resin
what you need to make a resin geode
how to make a resin geode tutorial blue and gold
tutorial how to make a resin epoxy geode blue and gold

PRO TIP: You can add sand OR stones OR both anywhere on your resin geode! 🙂

Class is FULL. Class reopens 3/1/20.

Do you think resin geodes are as cool as I do!? Leave a comment below if you have or have not worked with resin before! I’d love to answer if any of your questions! 🙂

Click here for how to resurface your countertops with epoxy resin!

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Resin Geode Art – How to make a Resin Geode [Tutorial]

July 1, 2020Categorie(s): DIY Projects, Guide

resin geode art


This guide shows you how to make impressive, sparkling Free Form Goeden from epoxy resin yourself. We give you step-by-step instructions on how to easily cast extraordinary unique pieces yourself using silicone and show you which materials are best suited for this. You will receive important insider information and we will show you what you should pay attention to in order to make your first resin geode a success.





What is a Geode?


Geodes in nature

The term “geode” (Greek: γεώδης, geōdēs for earthy) comes from geology or mineralogy. A geode is a roundish cavity in the rock, which is filled with minerals and crystals through geological processes. Mostly geodes are formed in volcanic lava rock, which after cooling encloses gas bubbles. If hot water with dissolved quartz penetrates these hollow spaces, crystals can grow. These take on different colours depending on the added trace elements (e.g. smoky quartz or amethyst). Geodes can also contain other types of minerals, such as quartz, agate or jade). Geodes are not so easy to find, as they are usually spherical or almond-shaped stones that can hardly be distinguished from the surrounding rock. Their sparkling inner life only becomes apparent after they have been broken open or in cross-section.


Resin Geode in art

In the style of natural geodes, you can also use resin, glitter, decorative stones and even real crystals and minerals to create enchanting resin geodes. You can let your imagination run free. With a little practice the Resin Geodes look very similar to the real minerals from nature. Of course you can also cast geodes in the form of a picture on a suitable painting surface or, as in this case, as a free form. These Free Form Geodes can also be processed very well, e.g. to an epoxy resin table. Or you can use them as extraordinary coasters.


diy geode




The best epoxy resin for your first resin geode

The choice of the best resin is the basic requirement for the success of your resin geodes. We can recommend the Dipon Epoxyplast, which has a very good price-performance ratio and with which we have had good experience ourselves.




How to make a Resin Geode?


The following step by step instructions show you how to create your own Free Form Geodes:


resin geode


Surface preparation

Before you can start pouring your Free Form Geode, you must first prepare a suitable substrate. A transparent vinyl shower curtain, which you can apply to a hardboard, is suitable for this.

  • Cut the curtain slightly larger than the hardboard and fix it to the underside of the board with adhesive tape. If the vinyl curtain is not completely smoothed out and still throws a few wrinkles, this is not too bad.
  • Now you can record your desired geodetic shape using a reference image with a marker.
  • Then you can spray the sanitary silicone along the pre-drawn shape using a silicone press. After about five minutes you can apply another layer of silicone on the first layer. If you want your geode to have a hollow space in the middle, you can use the silicone to apply a border in the middle that has the same shape as the geode, but is smaller. In our example the geode has no cavity.



  • Now moisten one finger with some soapy water and smooth the inside of the silicone mould with your finger. This will give your geode an even edge without sharp edges.
  • Two layers of silicone are usually sufficient if you do not want to cast a very large or thick geode, such as an epoxy table. In this case several silicone edge layers are necessary to ensure that the geode has the required thickness and stability. Depending on the silicone, the mould is ready for use after about 45 minutes.


geode art


Mixing and colouring resin

Mix the resin according to the manufacturer’s instructions. Then fill the resin into individual plastic cups according to the number of colours chosen and mix the colour pigments into the resin. We can recommend the pigments of the following brands: Resintint, Hemway and Jacquard, which give best results.

You can create exciting textures and effects in your geodes by adding glitter or so-called mica flakes to the resin.




To calculate the required amount of epoxy resin, you can use our resin calculator.


Casting the Free Form Geode

It is important that your worktop is 100% straight, otherwise the resin will be uneven. You can check this with a spirit level before pouring, even diagonally. If the surface is not completely straight, you can level the hardboard with wooden spatulas, for example.

  • Always work from the outside in. Pour each colour separately and one after the other in a ring along the geodesic form up to the centre. If you add colour afterwards, you will get great colour gradients with different light transmission.


geode painting
  • Heat the resin again and again briefly with a hot air dryer or a Bunsen burner to avoid air bubbles. As a great side effect, interesting patterns and colour gradients can be created. Be careful not to heat the resin too much, as the epoxy resin will burn and deform.


diy geodes
  • If the first layer of resin is not quite as you imagined it or if it still has irregularities, you don’t need to worry because another layer of resin will be poured over it later. Irregular areas are thus evened out.
  • Now you can sprinkle decorative stones, mirror nuggets or crystals into the resin in the middle of the geodes to create the typical and unmistakable look of the geodes.



  • Once the first layer of resin has hardened, which can take between 4 and 24 hours depending on the manufacturer and type of resin, you can cast the second layer of coloured resin. This allows you to correct unevenness and optical defects.


how to make a resin geode
  • If you are already satisfied with the first layer of resin or with certain areas in terms of appearance, you can use the second layer instead of the dyed, clear resin as a finish, as this enhances the colour intensity and depth effect of your geodes.
  • You can now add other 3D elements such as decorative stones and crystals.
  • To ensure that the geode hardens as dust-free as possible, it is best to put a sufficiently large cardboard box over it. Your first Free Form Geode is now ready.


diy geode painting


Remove the geode from the silicone mould

To ensure that your geode is fully cured, you should wait 24 hours. Once the resin has cured, remove the tape from one edge so that you can put one hand behind the vinyl. This will push the geode out from the back. Now carefully release the geode from the silicone edge, if possible without removing the silicone from the vinyl.

Look out: The edges of the geode could be sharp, so be careful not to cut yourself. Once the geode is completely dry, you can sand the sharp edges slightly with sandpaper. If you like, you can also draw accents on your finished geode with a special marker pen.

geode artwork

Picture tutorial: © by Christi and Madison Ninemire / FlatLand Artistry


As long as the silicone sticks to the vinyl, you can use the silicone mould again and again. If a part of the silicone edge has come loose, you can simply cut this part out and reapply the silicone sealant.



Video Tutorial Free Form Resin Geodes

To make the whole thing even more vivid, we recommend the following video tutorial:


Always have your safety in mind: Wear a respirator and Nitrile gloves when working with liquid resin:



We wish you lots of fun and success casting your first, breathtaking Free Form Geode!

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With this tutorial we want to show you how you can create impressive, sparkling Free Form Resin Geodes yourself. We will show you step by step how you can easily cast these luxury unique resin geodes with the help of silicone and which supplies you need for it. Here you will get all the information and we will show you what you should pay attention to so that your resin geode wall art will succeed.




What is a Geode?


Natural Geodes

The term “geode” (Greek: γεώδης, geōdēs for earthy) comes from geology or mineralogy and describes a round hollow space in rock, which is occupied by geological processes with minerals and crystals. Geodes are mostly formed in volcanic lava rocks which, after cooling, contain gas bubbles. When hot water with dissolved quartz penetrates these cavities, the crystals can grow and depending on the added trace elements, take on the different colours of the smoky quartz or the amethyst. Geodes can also contain other types of minerals, e.g. amethyst, quartz, agate and jade. Finding geodes is not easy, most of the time they are spherical or almond shaped stones and can hardly be distinguished from the surrounding rocks. They only reveal their sparkling inner life after impacting or in cross-section.


free form geode



Resin Geode Wall Art

Inspired by the natural geodes, you can now create beautiful geodes with resin, deco stones, glitter and of course real crystals and minerals. There are no limits to your imagination and the “geode imitations” made of resin look with a little practice deceptively similar to the real minerals from nature. Of course you can also cast resin geode wall art on a suitable painting ground or, as in our case, as a free form. Such free form geodes can also be processed wonderfully e.g. to tables etc. or you can use them as fancy coasters.


geode free from style


ebook epoxy resin




Supplies you need for your Resin Geode Art


Most important: Suitable Epoxy Resin and Pigments

HEMWAY Pigment Powder in 14 colours

HEMWAY Pigment Powder in 14 colours

  • Hemway has one of the largest ranges of pigment powder dyes
  • You can simply mix this slowly into resin until the desired ratio is reached
  • Colorfast and lightfast, so your works will still shine brilliantly even after a long time
View on Amazon



Make it look realistic with Stones, Crystals and Glitter



Tools and other Materials



geode art



Dedicated Course on how to learn Resin Geode Art


Course: How To Make Free-form Resin Geodes and Agate Slices

  • Two ways to make a mold for your resin
  • How to work with resin safely and the basic supplies and tools you will need
  • How to build up layers of resin to give your piece depth
  • Three different finishes for the edges
  • How to add extra fine lines and definition
  • Three ways your final artwork can be displayed

A course for resin beginners looking to create amazing geode inspired free-form resin art works.


Get the Resin Geode Course



How to make a Resin Geode


Surface Assembly

Before you can start casting your geodes in Free Form Style, you must first prepare a suitable substrate. We recommend a transparent vinyl shower curtain, which we apply to a hard board surface.

  • Take your clear vinyl shower curtain and cut a section slightly larger than your hard board surface. Secure it to your hard board with packaging tape (this will be removed on one edge at a later point). Remember, the vinyl may have creases and wrinkles but that’s okay.
  • Now draw your desired geode shape with a marker using the reference photo.
  • Following your drawn form, place a line of silicone sealant around your geode with the help of a caulking gun. Wait about 5 minutes and add another layer of silicone on top of the first one. If you want your geode to have a cavity in the center, you can apply a boundary with silicone in the middle (same shape as the geode, only in small size). In our example the geode is closed in the center.
  • Wait another 5 minutes and moisten a gloved finger with dish soap. Now, smooth out the inside surface of the silicone with with your soapy finger. This is therefore necessary so that your geode later has as even an edge as possible without sharp edges.
  • Two layers should be enough depending upon your project. If you’re preparing your mold for a large piece like resin geode tables, you may need several layers. So that the geode has the necessary thickness or stability. Your mold will be ready for use in approximately 45 minutes.
NEWBORN Caulking Gun, drip-free

NEWBORN Caulking Gun, drip-free

  • Steel half-barrel frame caulking gun for 1/10-gallon cartridges
  • Thrust ratio of 10:1 for use with low viscosity materials
  • Rod retracts after each pull of the trigger to help prevent dripping
View on Amazon


resin geode anleitung


Resin Prep

Prepare your resin according to the packaging directions. We prefer Stone Coat Countertops Resin, 1 part epoxy to 1 part hardener. Now, separate your resin into individual paper cups according to the number of colors you have chosen for your geode and mix in the colored pigments. We prefer using various brands of pigment pastes and pigment powders. Also, added glitter or mica flakes to your resin is another way to add some interest and texture to your geode.



Pouring Your Free Form Geode

One of the most important tips we can give you is to make sure your surface is level. So, using your leveling tool, check every angle including diagonally. You can shimmy the board with your stir sticks if you need to. Now you’re ready for the fun part.

  • Working from the outside in, start layering each color of resin until you’ve reached the center alternating colors and opacities.

resin geode tutorial

  • All the while heating the resin with heat gun or butane torch to encourage the release of any bubbles. Be careful not to heat your resin too much as this will cause the plastic to warp and mess up your work.

free form geode tutorial

  • Layer one is only the preliminary version so don’t worry if it isn’t perfect, you won’t see any imperfections after layer two.
  • Now that your center point is established you can add mirror glass pebbles, mica flakes, deco stones, or crystals.
  • Layer one is complete and needs to cure prior to layer two. (depending on brand and type of resin, it takes between 4 and 24 hours to cure). The idea of layer two is to fix anything you dislike.

free form geode anleitung

  • So, only apply transparent tints to the areas you already love. If you are satisfied with layer one, then simply add a clear layer. However, we recommend that you also use coloured resin for the second layer, as this will further enhance the colour intensity and depth of your geodes.
  • Depending on your taste, you can now also add further 3D elements such as mirror glass pebbles, decorative stones or crystals.
  • For an easy way to store your art in a dust-free zone, turn a storage container upside down and place it over your art. WaLaa – you are now a geode artist!

resin geoden anleitung



To allow your geode to set up completely, we recommend waiting for 24 hours. Once your resin is set, remove one of the edges of tape so you are able to place a hand behind the vinyl. Now, gently pry away the silicone from your geode careful not to pull the silicone from the vinyl. Press against the silicone border if you need to while following along the edges of the geode on all sides until it’s free. The edges of your geode may be sharp so be careful not to cut yourself. Sharp edges can be sanded off with a sandpaper, if necessary, as soon as the geode has been fully stocked. Optionally you can add accents to your finished geode with a special marker pen.

Uni Posca Paint Marker Pen

Uni Posca Paint Marker Pen

  • POSCA is a paint marker popular with artists and creative hobbyists.
  • You can use it on almost any surface
  • 21 bright colours with gold and silver, optimal for adding details to your resin artwor
View on Amazon


The mold can be reused over and over as long as the silicone is still adhered to the vinyl. If a section has become loosened, simply cut this portion out and reapply the silicone caulking to this area.

tutorial resin geode

Always take a look at your health: Wear a respirator and Nitrile Gloves when working with Epoxy resin!



Video Tutorial Resin Geode Art (Free Form Style)

To make the whole thing a little more vivid, we have also created a video tutorial for you:



We wish you lots of fun and good luck with your first Free Form Geode! Most importantly, have FUN! Happy Geoding!

A detailed list of supplies, a tutorial for your first steps in resin art technique and a tutorial for resin paintings with textures can be found in separate articles. If you like to work with wood, you’ll find a tutorial about Epoxy resin for wood and about creating an epoxy resin river table.



portrait flatlandartistry

FlatLand Artistry | Christi and Madison Ninemire

FlatLand Artistry is the mother-daughter duo of Christi and Madison. Their passion for resin geode art comes from their love of nature and the outdoors. Christi once owned her own faux painting business during its craze and incorporates that knowledge into her art today. Madison is a certified welder and is in the process of designing steel sculpture stands for the display of their geode art. Madison is currently expecting her first child and will soon be moving to Texarkana with her new baby, husband and 3 step-children. Christi is happily married and has two other children and a step-son. Artists who have had a huge hand at inspiring FlatLand are Mitch Gobel, Crystal Ma, Liza Vaughn, and Karen Cain. FlatLand Artistry is currently open for commissions and their art is for sale.

Epoxy Resin Geode Wall Art - DIY - So FUN!

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