Collection of three smooth river-style stones

A group consisting of three distinct stones, which appear consistent with water-worn river rocks or decorative pebbles. The largest stone is a rounded, tan-colored specimen with light horizontal banding and a moderately coarse texture. The second is a matte, dark charcoal or black ovoid stone, showing small surface pits and a fine-grained composition that is stylistically consistent with basalt or a similar igneous rock. The third is a smaller, off-white pebble with a more irregular, pitted surface and some crystalline luster, appearing consistent with quartz or quartzite. These items are resting on a tan quilted fabric background. There are no visible maker's marks, signatures, or inscriptions, indicating they are likely natural specimens or mass-produced decorative landscaping stones. The stones exhibit natural surface wear, minor chipping, and variations in mineral composition, but otherwise appear to be in stable condition. Without physical testing of hardness, weight, or mineral reaction, these identifications remain hypotheses based on visual appearance alone.

Based on my visual examination of the provided image, I have evaluated a collection of three stones consistent with natural river rocks or decorative landscaping pebbles. Based on what I can see, the group includes a tan banded specimen, a possible basalt ovoid, and a small quartzite-type pebble. I cannot verify the exact mineral composition from a photo, as physical hardness testing or a density check would be required to confirm these hypotheses. The stones appear to be in stable condition with natural surface wear and pitting, which is typical for specimens of this type found in nature or sold as decor. The basis for this value estimate is grounded in the general market for common natural objects and bulk decorative stones, which have a very high supply and fluctuate minimally in demand. Without evidence of rare mineral crystallization, precious metal content, or documented archaeological significance, these items are valued as common natural curiosities. Because there are no maker's marks or artistic signatures, they are hypothesized to be either gathered from a natural environment or mass-produced for landscaping. To confirm this valuation, an in-person geological inspection would be necessary to rule out rare mineral variants. If these were determined to be rare gemstones or significant artifacts rather than common pebbles, the value could increase significantly; however, as they currently appear to be standard decorative stones, the value reflects their utility as minor decor or educational samples.