These are NOT generic photos - you're looking at the actual rocks you will receive when ordering! And all orders are mailed out within one business day at no extra cost.! Also known as "scoria" or "cinder", they were hand-picked directly from the Springerville Volcanic Field, near the White Mountains of east-central Arizona.

These five rocks were great finds! They are each segments of ribbon lava bombs. you can see banded layers of pockmarks running through the rock in a tabular fashion (our spokes-model, Woody, says the banding shows particularly well in the second-to-last photo) . Originally part of longer strings of molten lava, they broke off from the main string and formed separate rocks as they cooled. They range in size from roughly 3½" to almost 6" across their longest sides.

The most recognizable features of scoria are the pockmarks appearing all along its surface. When these rocks were expelled from the volcanoes that were active here between 300,000-1.5 million years ago, hot gases were captured within the molten rock. As they cooled, the gas was trapped, leaving thousands of tiny "pores" within the rock itself.

They would be ideal for the following uses:

• In aquariums. Set them out a bit from a corner to create a safe space for smaller fish, or combine them with other rocks to create an underground scene. Scoria lava rocks are extremely lightweight and reduce the risk of damaging your tanks. They offer additional benefits ensuring the health of your aquarium, too. IMPORTANT: These rocks are shipped in a natural state and need to be prepared before introducing them into your aquarium.

• Lava rocks can create a beautiful setting in your terrarium or bonsai tree arrangements. Juxtapose these rocks to larger plants to create a visual offset, for example. (Please see our other listings if you’re looking for something in a different size or shape. Each listing is unique.)

• Lava rocks are an ideal base for planting small succulents. Its pores offer natural benefits that help certain varieties of succulents to even thrive compared to other planting methods. They allow air to pass to their shallow roots, while retaining moisture as water easily drains. Their native roughness offers a place for roots to grab hold and take root, too.

At Arizona Lava Rocks, we know how to rock! Each of these scoria was picked up because something about it caught our eye. Again, this listing is for the specific rocks you see in the accompanying photos. Our inventory is constantly changing - please check out our other listings.

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