Blackstar gravel is made from Basalt, which is a hard, dark, volcanic rock. It’s formed when volcanoes erupt and magma is cooled. Basalt rock is mined from quarries, then crushed into smaller pieces and sorted into different sizes based on the desired application. Blackstar gravel features a striking black color that contrasts beautifully with lighter environmental elements and is perfect for creating dramatic, bold landscapes. It’s a very beautiful, decorative rock that is extremely durable.
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