The burning lava of a volcano, known as magma when it's underground, is extremely hot and can reach temperatures ranging from 700 to 1,200 degrees Celsius (1,300 to 2,200 degrees Fahrenheit). This temperature is certainly capable of melting many common objects found on Earth.
However, whether or not an object will melt depends on various factors, including the melting point of the material the object is made of and the specific conditions present near the lava. Different materials have different melting points, and some substances have much higher melting points than the temperatures typically reached by lava.
For example, most metals commonly used in construction, such as steel and iron, have melting points above 1,000 degrees Celsius (1,800 degrees Fahrenheit). These metals would not melt when exposed to typical lava temperatures. However, some metals with lower melting points, such as certain types of aluminum alloys, could potentially be affected by extremely hot lava.
Nonetheless, it's important to note that the intense heat radiated by lava can still cause significant damage to objects and structures, even if they do not melt. The extreme temperatures can lead to warping, deformation, or combustion of materials, potentially causing them to weaken or break down.
In summary, while the burning lava of a volcano can melt many objects on Earth, the specific outcome depends on the material's melting point and the conditions near the lava.