Black Crystal Basalt Boulders Basalt Central California rock quarry shipping bulk throughout Arizona and Southern California. Palleted material in the USA is also available. These basalt boulders are great for landscaping. There are two black basalt quarries in California. The features of the rock are very different from quarry to quarry, the basalt at this quarry features a "crystal" type basalt that when cleanup can be very attractive. Black Crystal Basalt boulders are not sold as column basalt, but irregular boulders that may have some flat sides ideal for bench boulders. .
This mateial is crushed down to 1 to 3 inch and 3 to 6 inch rock that make a great bold dark gray or black ground cover in landscapes.
