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Extrusive igneous rock: Obsidian. Quality of conchoidal fracture making them easily workable to a sharp edge for cutting tools or weapon points. Intrusive igneous rock: Granite. Quality of durability due to high crystalline quartz and feldspar mineral mix. Also beauty. Harder to work, but a great, long lasting building stone.

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What characteristics make igneous rocks useful?

Igneous rocks are useful because they provide information about Earth's history, such as how they were formed and the conditions of their formation. They also contain valuable resources like metals and minerals. Additionally, igneous rocks are used in construction materials and as decorative stones.


What qualities of Igneous rocks make them good for tools and buildings?

Igneous rocks are durable and resistant to weathering, making them suitable for tools and buildings. Their hardness and heat resistance also make them ideal for construction and infrastructure. Additionally, their availability in abundance makes them a cost-effective option for various applications.


What qualities of igneous rock have made them useful tools?

there are several uses of igneous rocks includingpumice being used as an abrasives in industrial hand cleaners or for sanding materialsobsidian being used in the same way as flint where it can be napped into arrow heads and blades and more recently used in high end scalpels


What qualities of igneous rocks have long made them useful for tools and building?

Extrusive igneous rock: Obsidian. Quality of conchoidal fracture making them easily workable to a sharp edge for cutting tools or weapon points. Intrusive igneous rock: Granite. Quality of durability due to high crystalline quartz and feldspar mineral mix. Also beauty. Harder to work, but a great, long lasting building stone.


Why are igneous rocks useful?

Igneous rocks are important to science because scientist need to know about all the different types of things in our world today. The reason also because igneous rocks come from volvanoe and the stuff that comes out of a volcanoe is called LAVA /MAGma!


Why are Igneous Rocks used in tools?

Igneous rocks are used in tools because they are typically hard, durable, and resistant to wear and abrasion. This makes them suitable for applications where strength and durability are important, such as in construction tools, road surfaces, and countertops. Additionally, some igneous rocks have unique properties, such as the ability to retain heat or conduct electricity, making them useful in specific tool applications.


What kind of tools did lenape use?

They used sticks and rocks to make useful tools.


Why have people throughout history used igneous rocks for tools and building materials?

Igneous rocks are durable and resistant to weathering, making them ideal for tool making and construction. Their hardness and strength also make them suitable for grinding tools and creating sharp edges. Additionally, the abundance of igneous rocks in many regions meant they were readily available for use by ancient civilizations.


Do use igneous rocks for tools?

Yes. Obsidian in particular has been used to make tips for arrows and spears.


Do people use igneous rocks for tools?

Yes. Obsidian in particular has been used to make tips for arrows and spears.


Why might the Incas have chosen igneous rock to build their fortress near Ollantaytambo in Peru?

Many igneous rocks are hard, dense, and durable. People throughout history have used igneous rock for tools and building materials.


Why might incas have chosen igneous rock to build their fortress near Ollantaytambo in Peru?

Many igneous rocks are hard, dense, and durable. People throughout history have used igneous rock for tools and building materials.