Wisconsin Moonstone Value Guide

Wisconsin Moonstone 1F133 Wisconsin Crystal Mineral Specimen ...
Wisconsin Moonstone
Estimated Value
$15 – $25
Period
2020-2024
Origin
United States
Materials
Feldspar, Albite, Orthoclase
Category
Moonstone

The Wisconsin Moonstone is a prized variety of plagioclase feldspar sourced from the Wausau area, celebrated by Midwestern rockhounds since the mid-20th century. Its distinctive appeal lies in a mesmerizing blue and violet adularescence created by light scattering between microscopic layers of albite and orthoclase.

What Is Wisconsin Moonstone Worth?

The typical price range for Wisconsin Moonstone is $15 - $25 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

  • The intensity and visibility of the blue and violet adularescence significantly impact the market price.
  • The overall size and weight of the raw specimen, with larger pieces commanding the higher end of the $15-$25 range.
  • The clarity of the internal glow and the absence of excessive external matrix or dull inclusions.
  • Current demand among regional collectors and rockhounds specializing in Midwestern minerals.

How to Identify Wisconsin Moonstone?

  • Look for a distinct internal blue or violet glow known as adularescence when the stone is rotated.
  • Verify the specimen is a raw, unpolished plagioclase feldspar with a characteristic crystalline structure.
  • Confirm the origin as the Wausau region of Wisconsin, where these specific albite and orthoclase compositions occur.
  • Check for the presence of microscopic layering that causes the light-scattering effect.

History of Wisconsin Moonstone

Commonly found in the Wausau area of Wisconsin, this unique variety of feldspar has been a favorite among Midwestern rockhounds since the mid-20th century. It is prized for its internal glow, which is caused by light scattering between microscopic layers of albite and orthoclase.

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