What are Lava Rocks? The Multipurpose Stone

What are Lava Rocks? The Multipurpose Stone

Lava rocks are a type of rock that is formed from cooled lava. Lava is molten that has been heated to extreme temperatures, typically around 1200 degrees Celsius. When the lava cools, it hardens and forms these rocks. Lava rocks are a type of igneous rock known as basalt, which is composed of various minerals and chemical elements.
These rocks have a variety of uses. They can be used as an ornamental addition to your garden or home. Lava can also be used in crafts or jewellery making. Additionally, they can be used for landscaping purposes or as drainage stones. Here are some more specific ways you can use lava rocks in your everyday life:

Garden Landscaping

Lava rocks  are a great way to add interest and texture to your garden. They come in a variety of colours and sizes and can be used to create different effects. Here are some ideas on how to use them in your landscaping:
- Use them as mulch around plants they will help protect the roots of your plants from the heat, cold, and wind.
- Create a rock garden. This is a great way to show off your lava rocks, and it can also help with drainage problems in your garden.
Lava rocks  are a versatile and attractive addition to any landscape. With a little creativity, they can be used in a variety of ways to add interest and functionality to your garden. So get out there and start rockin' your landscaping!


Aquariums are a beautiful way to bring the colours and serenity of the ocean into your home. While there are many different types of aquariums, one of the most popular is the freshwater fish tank. These tanks can be filled with a variety of different fish, plants, and other decorations. One type of decoration that is becoming increasingly popular in freshwater fish tanks is lava. 
Lava rock  is an excellent addition to any freshwater fish tank for a number of reasons. First, lava stone is very porous. This porosity allows bacteria to grow on the surface of the rock which helps to filter the water in the tank and keep it clean. The bacteria that grow on lava rock also provide a source of food for some types of fish In addition, the porosity of also allows it to absorb and release water. This helps to regulate the temperature in the fish tank and make it more comfortable for the fish.
Another reason to add lava rock to your freshwater fish tank is that it is very aesthetically pleasing. They comes in a variety of colours and sizes which can be used to create a variety of different looks in your aquarium. It can also be used to create caves and hiding places for your fish which can make them feel more comfortable and less stressed.
If you are looking for a way to improve the look and health of your freshwater fish tank, then adding some lava rock is a great option. It is important to remember that when adding any new element to your fish tank, you should do your research to make sure that it is safe for your fish and will not cause any problems. With a little bit of planning, you can easily add lava rock to your aquarium and create a beautiful and healthy environment for your fish.

Gas Barbecues

Lava rocks are excellent at absorbing and radiating heat. This makes them ideal for use in your gas grill, as they create even heat distribution from the gas burner and increase the heat in the grill. Another advantage of employing lava rocks in your gas grill is that you may monitor your food while it cooks without risking overcooking it.
Another great thing about using lava rocks in a gas grill is that you can check your meal while it's cooking without fear of the heat escaping. When only utilising gas, opening up the lid allows for excess energy to escape which lowers interior temperature drastically; however since the lava rock retains the heat you can be sure your gas BBQ will maintain a hot surface to cook your meat to perfection!
Ceramic briquettes are frequently used in place of volcanic rock, but the one disadvantage you may experience with ceramic briquettes is that they are brittle, pricey, and do not last as long as old-fashioned lava rock if you want to enhance your BBQ cooking. You'll be astonished at the difference they make to your cooking.
lava rock gas bbq

Pond filters

If you're looking for a way to improve the quality of your pond water, consider using lava rocks as a filter. Lava rocks can help to trap debris and keep your water clean and clear. In addition, they are alkaline, so they can help to neutralise acidic water. Best of all, these stones are a natural product, so they're safe for your fish and plants. Give  lava rocks a try the next time you're looking for a way to improve the quality of your pond water. Check out this YouTube video from  Poundguru for a DIY wheelie bin shower filter using lava rocks. 
lava rock in a pond filter


Lava rock jewellery is popular for being unique and affordable. Every piece of lava rock has its own individual patterns and colours, meaning that no two pieces of jewellery are the same. Lava stone jewellery can take many different forms, such as rings, earrings, necklaces and bracelets. It is also said to have powerful spiritual effects on the mind, helping to cleanse negative thoughts and emotions while stimulating creativity. In addition, lava stone is believed to enhance dream work and improve communication with others.
Lava stone is a popular choice for jewellery because it is affordable and easy to find. Etsy or Amazon  would be a good place to purchase lava stone jewellery from. It's important to buy from a top-rated vendor with a proven track record and to check the reviews. This will help you ensure that you are getting a quality product. 

Fire Pits

fire pit with lava rocks
Lava rocks are used in fire pits for a variety of reasons. One reason is that they absorb and radiate heat very well. This means that your fire pit will stay hot for a longer period of time, allowing you to enjoy it for longer. Additionally, they are very lightweight, making them easy to move around and clean up. Finally, lava rocks can give your fire pit a unique and stylish look. Whether you're looking for functionality or aesthetic appeal, lava rocks are a great option for your fire pit


Lava rocks are used for many reasons. They help to keep the humidity levels high, which is essential for many plants. Lava rocks also help to aerate the soil and provide drainage. Additionally, they can help to regulate the temperature in the terrarium and prevent the roots of your plants from getting too hot or cold. Overall, they are an excellent way to create a healthy environment for your plants.

Diffuse essential oils

Lava rocks are used as a diffuser for several reasons. The porous nature of lava rock allows it to absorb and diffuse essential oils very well. Lava rocks also last a long time - they do not need to be replaced as often as other diffusing methods. Additionally, lava rocks are very aesthetically pleasing and can add a nice touch to any room. Overall, using lava rocks as a diffuser is an excellent way to enjoy the benefits of essential oils. Give it a try! You might be surprised at how much you like it.
As you can see, there are many benefits to using lava stone. From garden landscaping to using lava stone in your gas BBQ, lava stones are a versatile and affordable option.
Have you used lava for something not mentioned above? Feel free to add tips and uses for lava stone in the comments below.

Check out our range of lava stones available here

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The Black Rock Grill team.`