Polished Agate Slice Appraisal

Polished Agate Slice

This item is a circular, polished slice of a natural agate geode, likely used as a coaster or decorative paperweight. The piece measures approximately 4 to 5 inches in diameter and features a thickness of roughly 1/4 inch. The central portion of the specimen displays translucent, milky-white chalcedony with subtle, wavy concentric banding characteristic of high-quality agate. The outer perimeter is composed of a rough, dark brown to grey weathered host rock, providing a sharp textural contrast to the smooth, high-gloss polished top surface. A small, naturally occurring vug or crystalline pocket is visible near the upper-right edge, showcasing micro-crystalline quartz formations. The condition appears fair, though a prominent Goodwill thrift store sticker and adhesive residue are present on the face, which may require careful cleaning to avoid scratching the stone. There are no visible maker's marks, suggesting it is a common lapidary find often produced in regions such as Brazil. The item represents a mid-to-late 20th-century style of organic home decor, valued for its natural geological aesthetics and durability.