Identification
Photo reference
2 uploaded photos
Overview
Visual evidence confirms these are tumbled and highly polished banded agates. The specific color palette of iron-rich reds, oranges, and yellows strongly supports the seller's attribution to the Lake Superior region, which is known for these distinct characteristics.
Story
Lake Superior agates are found primarily in the upper midwestern United States, deposited by ancient glacial movement. They are highly prized for their rich iron-stained colors—specifically reds, oranges, and yellows—and their distinct chalcedony banding. The secondary market for Lake Superior agates is active and highly liquid among lapidary enthusiasts, jewelry makers, and regional collectors. Tumbled stones trade largely as a commodity based on weight, color intensity, and the clarity of their banding.
Maker / Origin
Unattributed
Condition & Value
The stones exhibit a professional, high-gloss tumble polish that effectively highlights their natural banding. The color saturation features the desirable iron-rich reds and oranges, and the polish appears to have smoothed out any major surface pitting or fractures, maximizing their display appeal.
Full Research
Sold comps, value drivers, and venue guidance pulled from recent auction results.
The secondary market for Lake Superior agates is active and highly liquid among lapidary enthusiasts, jewelry makers, and regional collectors. Tumbled stones trade largely as a commodity based on weight, color intensity, and the clarity of their banding. Premium prices are reserved for lots with distinct 'fortification' banding, while lower-grade material moves steadily in bulk craft lots.
▲ Classic iron-red and honey-yellow coloration confirms desirable Lake Superior regional characteristics.
▲ Professional high-gloss tumble polish saves the buyer lapidary time and maximizes immediate display appeal.
▲ Visible fortification banding in individual stones supports premium per-ounce pricing.
▼ Unknown total weight — the current estimate spans a wide range from a 1-ounce handful to a full pound; confirming the weight will narrow this significantly.
▼ Unverified size of individual stones — larger intact agates command a premium over small chips or fragments.
Best Venue
Weigh the entire collection in ounces or grams to establish a firm baseline value. For lots under 8 ounces, list as a single mixed lot on platforms like eBay or Etsy with clear, well-lit photos showing the banding. If the collection exceeds a pound, consider separating the most distinctly banded stones to sell individually or in premium small sets to maximize return.
Upside Potential
If the collection weighs significantly more than one pound (16 ounces) and maintains the high-grade banding seen in the $15-$16 per ounce comparables, the total value will scale proportionally (e. g., a two-pound lot of this quality could exceed $500).
Also found — market-range context
Surfaced during research but not used to anchor the valuation — wrong form, species, era, or no published price. Shown so the market range around this item is visible.