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South Dakota Prairie Agate- Medium

South Dakota Prairie Agate- Medium


This is crushed Prairie Agate / Jasper mix. These rocks are in varying sizes from 1″ to 1 1/4+”. This South Dakota Agate is mostly pastel colors with other accents and some cool banding. These rocks are one-of-a-kind beauties from the plains of South Dakota. They polish nice and make pretty tumbled stones.

MOHS hardness scale of  6.5-7

  • Please note we photographed the stones wet to show the color and banding of the material.


Agates mostly occur as nodules in volcanic rocks or waters containing silica in solution possibly derived from the decomposition of silicates in the lava. The siliceous matter is deposited in regular layers resulting in the banded or striped formation.

Additional information

Bag Size

1 Lb Medium Prairie Agate, 2 Lbs Medium Prairie Agate, 3 Lbs Medium Prairie Agate, 5 Lbs Medium Prairie Agate

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515 1st Street
Keystone, SD 57751

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Information: 605-666-4813

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