Pinna bicolor with Natural Spondylus and Barnacle Encrustations – Mounted Specimen A striking and highly decorative specimen of Pinna bicolor, naturally adorned with marine encrustations including a vivid Spondylus shell and clustered barnacles. This piece beautifully captures the raw interaction of marine life, preserved in a single sculptural composition. The elongated, tapering form of the pen shell displays deep brown tones with subtle iridescent reflections and lighter gradients toward the tip. Its smooth yet organically textured surface contrasts dramatically with the rugged structure of the attached organisms. At the broader end of the shell, a naturally fixed Spondylus specimen introduces rich reddish and pink hues, accompanied by barnacle formations and calcareous marine growth. These encrustations are not artificially applied but formed organically in the marine environment, giving the piece exceptional authenticity and character. The combination of sleek geometry and intricate natural accretions makes this specimen particularly appealing for collectors of unusual shells, Wunderkammer displays, or refined coastal-inspired interiors. A metal display stand (visible in the photographs) is included, allowing stable and elegant presentation. Size: 33 × 15.5 × 6 cm A unique, naturally composed marine sculpture — both scientifically interesting and visually captivating.