There are many igneous rock but simply put the igneous rock that is used for the making of cobblestones is basalt.
The most common rock is an igneous rock e.g. Granite.
Obsidian
Granite, which is an igneous rock, is commonly used for floors and tabletops.
Granite is a type of igneous rock that is used for building structures. Pumice is an igneous rock that is used as a mild abrasive and obsidian is volcanic glass that is broken up and piled into gas fired barbecue grills.
They are descriptive terms as to the relative silica content of igneous rocks. Igneous rock which is high in silica is referred to as felsic. Igneous rock which is relatively low in silica is referred to as mafic.
Igneous rock can be used for a lot of things, Granite is one of them, but granite is also used for a lot of other things. Here is a list of some igneous rocks and their uses.Granite: Used for long lasting monuments, for trim and decoration on buildings.Pumice: Because they are so light, it is used a lot as a decorative landscape stone. If it is grounded to a powder, it is used as an abrasive in polish compounds and in Lava soap.Crystalline Igneous rocks can be used for jewelery and other similar things.Countertops and building stone.Lava soap, building materials, landscaping
Granite is the name of the igneous rock used in monuments.
igneous rock
The most common rock is an igneous rock e.g. Granite.
Basalt rock is used in construction, such as building blocks, cobblestones, and making statues. It is formed from the rapid cooling of basaltic lava.
because it is soft and not breakable
Igneous rock can be used for making weapons. Blacksmiths can use them.
Igneous rock is a particularly durable kind of rock; a statue made from igneous rock can last a very long time, and will have great ability to withstand whatever stress it is exposed to.
Mixing concrete for construction, landscaping, gardening
Granite
igneous rock
The Native Americans used the Igneous rock Obsidian as arrowheads. Granite is used as countertops and sculptures.