1. Granite2. Quartzite3. Basalt4. Porphyry
Hard stone
These are all types of rocks, so I will provide some general information on each one:
1. Granite: Granite is an igneous rock that is composed primarily of quartz, feldspar, and mica. It is typically medium to coarse-grained and is often used in construction and for decorative purposes due to its durability and aesthetic qualities.
2. Quartzite: Quartzite is a metamorphic rock that is derived from sandstone. It is composed primarily of quartz and is known for its hardness and durability. It is often used as a building material, for countertops and flooring.
3. Basalt: Basalt is an igneous rock that is formed from the rapid cooling of lava. It is typically dark in color and fine-grained. Basalt is known for its strength and durability and is often used as a construction material.
4. Porphyry: Porphyry is an igneous rock that is characterized by its porphyritic texture, which means it has larger crystals embedded in a finer-grained matrix. It is typically composed of feldspar, quartz, and mica. Porphyry is often used in construction and for decorative purposes due to its durable and attractive qualities.
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