Exotic rocks, stones, and mineral chunks are a valuable and often underused creative element for terrariums.
The striking features and dynamic shapes created by these solid materials can bring a terrarium to life and offer unique planting opportunities when used effectively.
Whether you want a towering rugged spike, a black monolith, or a mossy mountain – there’s a type of terrarium rock that’s a perfect fit.
Trust me; you won’t need to be a geology nut to appreciate these exotic beauties.
Ready to see them?
In the immortal words of everyone’s favorite rock chick, Avril Lavigne, let’s rock oot. 🤘
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Why Choose These Aquascaping Rocks for Terrariums?
If you’ve not encountered aquascaping before (firstly, you’re welcome), it’s essentially the art of scaping aquariums into gorgeous natural scenes.
So, as professional artists, the scapers (sp?) take their hardscape seriously, and they’ve found a selection of wood and rock types that hold a variety of advantages over standard pieces.
These days there are lots of different aquascaping rock types, but they all tend to share a few key features that providethe same benefits to terrariums.
- Lightweight – so they aren’t going to break your glass container, and they’re easy to place/manage.
- Unique – these aren’t your run-of-the-mill rocks. Each brings great contrast and beauty to a terrarium scene – expanding your creative options.
- Textured – which besides looking great, makes for fun 3D planting opportunities as you can place moss and epiphytic plants in the crevices (we teach you how to do this in our Essential Guide to Tropical Terrariums).
Alright, let’s see them!
My Favourite Terrarium Rocks for Sale
1 | Dragon Stone (Ohko Stone)
Honestly, dragon stone is every bit as cool as it sounds. It’s found primarily in Japan, so it also goes by the name “Ohko stone,” which is arguably even cooler.
It’s extremely lightweight, making it great for building cave-like structures, and the form provides lots of nooks to plant in so you can easily bring it to life.
Due to its sedimentary makeup, it can be quite brittle, but not so much that it’s likely to break up accidentally.
It works in your favor, though; dragon stone chunks tend to be long and sharp, and this brittleness makes it much easier to break into smaller chunks to sculpt to your desired shape.
2 | Seiryu Stone (Mini Landscape Rock)
Next up, another dragon-themed terrarium rock hailing from Japan: seiryu stone. A gorgeous stone with a jagged structure, striking calcite veins, and a blueish tint, which inspired the name.
In the Japanese belief system, Seiryū, the “azure dragon,” is one of the four guardian deities of the country.
With seiryu stone being pretty tough, you’re best off trying to get an assortment of shapes and sizes. Breaking up a chunk to size is going to be almost impossible.
3 | Lava Stone / Lava Rock
Lava stone is objectively less visually striking than the others, but its unique properties make it very useful in terrariums.
It’s highly porous, meaning it can hold/transfer water to any plants and mosses that have been rooted in it. Meaning lava rock can be used creatively to build living structures without the need for damp moss deposits.
Of course, you don’t have to work with epiphytes to utilize lava rock in a terrarium; most terrarium environments can benefit from the added water retention and distribution.
You can grab some in a few different colors, too, including red…
👉 Shop lava rock on Buceplant.
4 | Gobi Desert Stone
This sand-toned rock from the Gobi Desert in China brings effortless scale to a terrarium or vivarium build.
Unlike some others on this list, gobi desert stone doesn’t have nooks and crannies for creative planting; instead, it works best as a monolithic backdrop to help your plants pop.
It has a fantastic layered texture, with shades of cream overlapping to create a lot of complexity in a small rock.
Because of this, I’d be careful to buy a piece the right size for your project; breaking it down into smaller pieces is not only a challenge, but you’d likely ruin the look.
👉 Grab a piece of gobi stone for your next build from Buceplant.
5 | Elephant Skin Stone
Last but not least, we have elephant skin stone, which does what it says on the tin, and it’s a rock I can’t wait to try out.
It’s not named for its color (though it is a perfect color match for an African elephant) but for its characteristic texture.
It’s a heavily weathered rock with linear, deep crevices expanding out in all directions.
Of course, this makes it an ideal candidate for epiphytic planting, but I recommend avoiding full moss coverage so you can always see the unique detail.
That wonderful rugged nature makes it a great choice for natural, earthy terrarium builds.
That’s the End of the Rock Show!
From what I’ve come across, these are far from the only cool terrarium rocks available. I also really like pagoda stone, maple leaf stone, and fire stone, to name but a few – but which is your favorite? Let me know in the comments!
Looking for an encore? Check out our post on terrarium wood.