It is a Aluminum ingot.

Scientific name: Aluminium (Al).

The object appears to be a small ingot or cast piece made of aluminum. It is metallic with a silvery appearance and has a smooth texture. The shape is irregular, which is typical of small-scale casting processes. The object sits on a rough wooden block..

Aluminum is the most abundant metal in the Earth's crust, and it's known for being lightweight and resistant to corrosion..

The object’s metallic luster, color, and casting marks are indicative of aluminum, a lightweight metal with a bright silvery appearance. Its placement on a wooden surface is consistent with a display for metal samples or small sculptures.