Is there anything more magical than a beautiful agate geode? I had to create this acrylic painting tutorial with you because when I see one, I find myself absolutely mesmerized. They are full of glamour, yet down to earth at the same time. It’s no wonder that agate geode home decor is trending right now. With this being said, agate geode decor can be pricey to purchase.
If you follow this painting tutorial, you will have all of the information needed to customize your own, without spending an arm and a leg! This painting lesson also leaves plenty of room for creative freedom – so get ready to flex those design muscles.
A Gorgeous Geode Acrylic Painting Tutorial To Unleash Your Inner Artist
Previously, I have tried to make agate geode art with resin, and it is not for novices. This is a less messy and more cost-friendly approach with these wonderful (and surprisingly easy) agate geode paintings. I hope you enjoy making yours as much as I did! An alternative to using resin is acrylic pour painting.
Acrylic pour painting and acrylic mediums are great for creating abstract art but in this painting tutorial, I want to teach you how to create your own step by step painting by numbers.
It seems incredibly messy and wasteful so I decided to paint in acrylic. These canvases are perfect for hanging on your wall, decorating your desk, or giving to friends and family as a gift.
What you will need for this acrylic painting tutorial:
- Acrylic Craft Paints (see steps 1-3)
- Blank Canvas
- Palette Knife
- 1 medium paintbrush
- 1 small paintbrush
- Small clear beads like these
- E600 Glue
- 1 gold or silver paint marker
- A white paint marker
- 1 black paint marker
- A bottle of gold or silver glitter glue
- 1 palette for your paint (I used a plate as the paint can be completely picked off and cleaned)
Unleash your inner Bob Ross
1. Getting Started With Colour Mixing
This is the colour that the rest of the acrylic painting will compliment. I suggest picking something bold and rich like blue, red, purple, or emerald green. You really can’t go wrong with any gem tone for this project! If you are making this acrylic painting for a family member or friend, consider their favorite color or something that would complement the colors used in the interior of their home.
If you are making this painting for yourself to put on display, consider the colour scheme of your home’s interior design and let your work of art bring a new and refreshing “pop” of colour.
2. Pick a secondary colour that is next to your main colour on the colour wheel
This step will ensure that your colour scheme is full of harmony. Colours that are next to one another on the colour wheel share a common undertone. I created three different agate geode examples to help you visualize the end results. You’ll find some more examples of great colour pairs below:
I would also like to mention that black and white is also a great choice for your color scheme, if you’re not that into gem tones or bright colours. If you would like more information on colour, and how to choose the perfect scheme for you – see this article on how to choose colour for any project easily.
PS: My green and yellow agate geode ended up looking like an avocado…but I think this makes it even cuter. Avocados + agate geodes = the ultimate trendy piece of art. Right?
3. Select a metallic colour for your acrylic painting accents
You can probably tell from the artwork you see in this article that I LOVE gold. It’s glitzy, glamorous, and gives a feeling of luxury. However, to some, it can come off as tacky or over-the-top. If your preference is not gold, you’re in luck!
Silver happens to look wonderful on these agate geode paintings as well. You can even try copper if you are feeling a little adventurous, I am sure it would look lovely as well. Whatever metallic accent you choose – you will want to get a metallic paint marker to achieve the best results as you want to paint a realistic geode.
3. Set up your acrylic painting palette!
You will have a total of 7 colours on your palette for your acrylic painting:
- Light Main colour
- Lighter Second colour
- Medium Main colour
- + medium Second colour
- Dark Main colour
I will use the numbers above to help map out the rings in my geode painting. Take a look at my palette for a visual of these! Do a bit of color mixing on your own to figure out the shades that you want to add.
4. Sketch the outside line of your geode with a pencil
Lightly, with a pencil, draw the outside line of your geode. You will want the line to be slightly rough and jagged, like a natural rock would be.
Note: I drew the outline of mine with sharpie for better visibility. In this step, you should decide what cut of the geode you would like to be in view. What view of the agate geode face do you want to be showcased? There are many different ways you can go about this. You can use my paintings as a few examples, but they are certainly not exhaustive and I encourage you to get creative here.
my green acrylic painting shows almost all of the agate geode, with the crystallized portion as the center of the piece. The red painting shows a quarter-slice of agate geode with the crystallized portion in the corner, and the blue one shows a half-slice with the crystallized part slightly off-centered.
It would be super interesting to make a series of paintings that show different cuts of the same agate geode. Or multiple acrylic paintings that create a whole agate geode when hung side by side, however your painting techniques will definitely improve over time. Perhaps leave a triptych until you’ve mastered your new skills with basic acrylic painting techniques.
Now For The Painting Demonstration Using Acrylic:
5. Give your agate geode a base coat using your light main colour
This is to avoid having to do many coats of each colour. You’ll see little bits of this light colour peep through your others later on. Don’t worry – this is what we want! Having the appearance of layers adds to the beauty and complexity of your geode.
In the past, I tried the acrylic painting an agate geode with very clear, clean separation of colors – and it just was not as spectacular. Something about the under-color bleeding through the topcoat just a little bit makes the piece of work feel more natural. See the picture below for my examples with a basecoat.
6. Lightly sketch your agate geode’s rings
You will want to divide your agate geode into 7 areas, one per colour. I recommend using various widths for these and not making them all symmetrical. When sketching these rings, avoid straight lines!
Get a little groovy and rough around the edges during this process. Once drawn, very lightly label your rings starting at #1 in the center of your geode. Your numbers should get higher as you approach the edge, with the edge being #7
7. Paint by number!
Once you have your rings all mapped out and labeled, use a small paintbrush to paint in the numbered rings with the corresponding colours. Try not to stress too much about perfection during this part of the process – and remember, it’s okay if the basecoat bleeds through a bit!
8. Add your paint marker lines
Now that we’ve got the foundation down on your agate geode, let’s add some detailed lines! Just like your main rings, you’ll want to avoid straight lines here. We want texture and variance in our agate geodes. I started with my black paint marker, first making a line around the white center of the geode.
Then I added in a few more black lines here and there: some hugging the border of two colors, and some in-between rings. Once you’ve got the black rings drawn in, you can move onto your white paint marker rings and your metallic paint marker rings. Although, it really does not matter what order you draw the rings in, as long as all three ring colours end up on your canvas. See pictures below!
9. Glue beads/crushed glass to the center of your agate geode
Once you have completed the lines in your agate geode, you will want to create a beautiful, sparkly center. Start by applying your glue to the center of your project, and then press your beads or crushed glass into the glue.
10. Create glitter lines with your metallic glitter glue
You are almost done with your masterpiece! After gluing down the center of the geode – you will want to use your glitter glue for one last “wow” effect. Add a few glitter glue lines amidst your other detailed lines for a glitzy finish.
Voila! You are done with your canvas paintings and can now admire your beautiful creation. Isn’t it just wonderful? I am sure your art is absolutely dazzling! If you’re not sure what to do with your leftover bits and pieces from this project, I highly recommend reading this craft storage article – do it for your sanity.
Finally Your Acrylic Painting Techniques Will Improve With Practice
About Your Author
Thank you for following along with this step-by-step acrylic painting tutorial, I truly hope you enjoyed yourself. If you have any thoughts or suggestions, please leave a comment below. I would also love to hear about what you came up with here! Even better, if you post pictures of your work – you can even show me inside the Facebook group or by tagging me on Twitter (@hearthandmadeuk) and Instagram (@hearthandmade). I can’t wait to see!
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