Botryoidal Agate or Chalcedony Specimen

The item appears to be a raw mineral specimen, likely a form of agate or chalcedony, exhibiting a botryoidal or mamillary growth pattern. It is irregularly shaped, roughly estimated to be several inches across, and held in a hand for scale reference. The dominant colors are a translucent, milky white to pale gray and a reddish-brown to tan. The surface shows a mix of textures: some areas are smooth and lustrous, characteristic of botryoidal growths, while other parts are rough, earthy, and covered in a matrix material or crust. There are visible small, round, bubble-like formations in the translucent areas, indicating the botryoidal crystallization. Portions of the surface have a rusty or iron-stained appearance, contributing to the brown coloration. The overall condition appears stable for a mineral specimen, with natural inclusions and variations inherent to the material. No distinct manufacturing details, such as maker's marks or signatures, are visible, which is typical for unworked mineral specimens. The style is natural and unrefined, characteristic of raw geological samples. Its age is geological, not man-made. Quality is assessed based on the clarity and form of the botryoidal structures and the presence of interesting color variations and matrix. Despite the earthy crust in some areas, the translucent botryoidal growths suggest a potentially attractive specimen when cleaned.