Botryoidal Chalcedony Specimen
The item is a small, irregularly shaped mineral specimen held in the open palm of a hand. It appears to be a botryoidal form of chalcedony, commonly known as botryoidal agate or grape agate, though the color is different from the typical purple associated with 'grape agate'. The cluster is translucent to semi-translucent with a cloudy, yellowish-brown to light tan color. The surface is characterized by numerous small, rounded, interconnected nodules that resemble bunches of grapes, giving rise to its descriptive name. There are some areas of lighter, possibly whitish, surface inclusions or deposits. The size is relatively small, fitting comfortably within the palm. There are visible striations or growth lines on some of the individual nodules. The overall form is compact and clustered. No discernible manufacturing marks or signatures are present, as it is a natural mineral formation. The condition appears generally good for a natural specimen, with the botryoidal structure intact. There are no obvious signs of chips, cracks, or repairs visible in the image. The specimen exhibits a vitreous to waxy luster. The age is geological in nature. Its quality is based on the clarity of the nodules, the uniformity of the structure, and the overall aesthetic appeal of the formation.
AI-Generated Appraisal Disclaimer
Estimated Value
$40-60
Basic Information
Category
Mineral Specimen
Appraised On
August 28, 2025
Estimated Value
$40-60
Item Description
The item is a small, irregularly shaped mineral specimen held in the open palm of a hand. It appears to be a botryoidal form of chalcedony, commonly known as botryoidal agate or grape agate, though the color is different from the typical purple associated with 'grape agate'. The cluster is translucent to semi-translucent with a cloudy, yellowish-brown to light tan color. The surface is characterized by numerous small, rounded, interconnected nodules that resemble bunches of grapes, giving rise to its descriptive name. There are some areas of lighter, possibly whitish, surface inclusions or deposits. The size is relatively small, fitting comfortably within the palm. There are visible striations or growth lines on some of the individual nodules. The overall form is compact and clustered. No discernible manufacturing marks or signatures are present, as it is a natural mineral formation. The condition appears generally good for a natural specimen, with the botryoidal structure intact. There are no obvious signs of chips, cracks, or repairs visible in the image. The specimen exhibits a vitreous to waxy luster. The age is geological in nature. Its quality is based on the clarity of the nodules, the uniformity of the structure, and the overall aesthetic appeal of the formation.
Related Tags
Get Your Items Appraised
Instant estimates of your treasures with AI-powered instant appraisals