Here's a breakdown:

* Andesite: This is a common volcanic rock, characterized by its intermediate silica content (53-63%). Andesite lava is known for its viscosity, which can lead to explosive eruptions.

* Other Minerals: While andesite is the dominant component, Mount Pelée's lava can also contain other minerals like plagioclase feldspar, pyroxene, and amphibole.

Key points about Mount Pelée's lava:

* Highly Viscous: The andesite lava is quite viscous, leading to the formation of a thick dome that often blocks the volcano's vent. This blockage can lead to the buildup of pressure, ultimately resulting in catastrophic eruptions.

* Explosive Eruptions: Mount Pelée is known for its violent, explosive eruptions. The viscous lava contributes to this explosiveness, as it traps gases and builds up pressure.

* Pyroclastic Flows: The eruptions from Mount Pelée often produce devastating pyroclastic flows, a mixture of hot gas, ash, and rock fragments that travel at high speeds.

It's important to remember that volcanic compositions can vary slightly within the same volcano. However, andesite is the primary component of Mount Pelée's lava.