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  • A rugged, multi-toned mineral specimen featuring intricate patterns of rust-brown, black, and yellowish hues with a textured surface.
  • A rugged, irregularly shaped piece of mineral with a textured surface displaying patches of deep brown, vibrant yellow, and dark black hues.
  • A rugged, naturally occurring mineral specimen with a textured surface featuring patches of dark brown and black minerals interspersed with lighter greenish-white crystalline formations.
  • A textured, light greenish-gray fossilized shell fragment with patches of rust-colored corrosion along its edge.
  • A hand holds a rough, irregularly shaped piece of greenish-gray mineral with a textured surface featuring rounded nodules.
  • Gray, bumpy mushroom with a textured surface and wavy edges.
  • Gray, bumpy geode with a textured surface and circular patterns.
  • Gray, bumpy mineral specimen with a textured surface and subtle greenish-yellow accents.
  • A rugged, textured mineral specimen featuring vibrant yellow and deep black patches with a rough, porous surface.
  • A rugged, naturally occurring mineral specimen with a complex surface featuring swirling patterns of deep brown, golden yellow, and dark blue-black hues.
  • A hand holds a textured, layered mineral specimen with intricate patterns of brown, greenish-blue, and yellow hues.
  • A rugged, multi-toned mineral specimen with a textured surface featuring patches of deep brown, vibrant orange-yellow, and dark black, bordered by a distinct greenish-white edge.
  • A rugged, multi-toned mineral specimen featuring intricate patterns of rust-brown, black, and yellowish hues with a textured surface.
  • A rugged, irregularly shaped piece of mineral with a textured surface displaying patches of deep brown, vibrant yellow, and dark black hues.
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Arkansas Minerals

Kidwellite, Beraunite, Strengite etc (VERY RARE, 3 Oaks Gap, Polk Co. Arkansas)

Kidwellite, Beraunite, Strengite etc (VERY RARE, 3 Oaks Gap, Polk Co. Arkansas)

$750.00 USD
$750.00 USD
Sale Sold out
Shipping calculated at checkout.

Super Rare and Large Iron Phosphate Combo. 

The Minerals found on this piece include Kidwellite, Beraunite, Strengite, and minor amounts of Cacaoxenite etc.


Magnificent form/ great aesthetics and Displays beautifully! Extremely good aesthetics and condition for the locale. The front consists of Kidwellite and the backside of the specimen hosts micro Strengite and minor amounts of Cacoxenite (seen under microscope in very small amounts) on a mix of reddish Beraunite and other iron phosphates. 


This piece was mined in the 1970s near the Caney Creek Wilderness in Polk County, Arkansas, USA at the 3 Oaks Gap locale in an area known as "The Arena" by a team of scientists and collectors including Al Kidwell, Meredith York, Henry Delinde, and others. A wonderful example of the iron phosphate combinations from this region of Arkansas. It showcases the distinct multi-generational layering of various species of iron phosphates that have been deposited over time. Unearthed by the best in Arkansas mineralogical history.

from our personal collection of "best-of polk county, arkansas phosphate specimens".

-ex Henry Delinde collection.


size:

7 x 4.5 x 3 cm approx.

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