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Montana Agate

The Montana agate is usually a creamy light yellow to almost clear color with embedded moss structures in varying shades of brownish red to black.  Most of these Montana agates are found in gravel deposits from the Pleistocene age (10,000 - 1,6000,000) in  the area of the Yellowstone River and its tributaries.

Agates are hard stones between 6.5-8 on the Mohs scale.  They take an exceptional polish  and are used extensively in jewelry and carvings.

Agate is the Mystical birthstone for the month of September and the birth stone for the Zodiac sign of Gemini.