* Basalt: A dark, fine-grained rock formed from cooled lava. It's hard, durable, and resistant to weathering, making it ideal for paving and landscaping.
* Granite: A coarse-grained, light-colored rock often used for decorative purposes in landscaping. It's also strong and durable, making it suitable for building and paving.
* Diorite: A medium-grained rock with a speckled appearance, often used for decorative landscaping and paving. It's harder than basalt but not as hard as granite.
* Gabbro: A dark-colored, coarse-grained rock similar to basalt. It's less commonly used than basalt, but is still a durable and attractive option for paving.
The specific type of igneous rock used for cobblestones and landscaping depends on the desired aesthetic, the project's budget, and the availability of the rock in the region.
