Massive 20 lb Chalcedony Agate Botryoidal Quartz Display Specimen

This impressive 20-pound chalcedony (agate) specimen is a true natural sculpture, formed over millions of years through slow silica deposition. Its bold size and flowing botryoidal structure give it a striking, organic appearance that stands out as a display piece.

The surface features smooth, rounded formations alongside areas of natural matrix, creating strong contrast and texture. Each angle offers a different look, from soft, sculpted curves to more rugged, geological detail.

One of the most eye-catching features of this piece is its translucency. When backlit with a flashlight, multiple areas glow with a warm, diffused light, revealing internal depth and structure. This adds a dynamic quality that changes depending on lighting and display position.

Due to its size and presence, this is not a typical small specimen—it is a statement piece suitable for a home, office, or mineral collection.

Key Features:

• Weight: Approximately 20 pounds

• Material: Natural chalcedony / agate (microcrystalline quartz)

• Formation: Botryoidal growth with sculptural form

• Translucency: Glows when backlit

• Condition: Natural and unpolished

• One-of-a-kind display specimen

You will receive the exact specimen shown in the photos. Please feel free to reach out with any questions or requests for additional images