e0ea3cbf-612e-4c56-aabd-701ac68a57ad

Highly realistic 3D monolith with a square base 1.5 ft by 1.5 ft and 6 ft tall. Main body is solid black rock with subtle shallow cracks and natural weathering. Top section is a 1.5 ft cube made of slightly blue-tinted glass with a thin metallic frame along the edges, reflecting light realistically. Halfway down, each side of the monolith has a carved rune in the shape of the letter "A", slightly etched into the rock with realistic depth and shadowing. Proper proportions and perspective, realistic textures for rock, glass, and metal. Soft ambient lighting to enhance reflections and shadows.