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controlled failure risk
The precision of these natural formations gives the stone an almost watchful presence
The combination of hematite tubes
stone dimensions: 25x15mm
concentric eyes
Marquette Lake Superior Agate Ring Copper Replacement Agate controlled failure riskThis material is collected from a very limited number of shoreline locations in the Upper Peninsula region of Lake Superior. One of the primary collecting areas has been lost to shoreline erosion, and another is now seasonally buried under shifting sand, significantly reducing reliable access to fresh material. As a result, the usable yield from field recovery is extremely low. The majority of nodules found in these areas are not suitable for lapidary
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