CHI167jr Chinese Agate, Middle-Class Mine Kowallabe Mohs hardness of 7

Mohs hardness of 7

They are believed to have formed in the negative spaces between large crystal blades of calcite or aragonite

and a systematic approach

Each piece is approximately 2" - 3" in length

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CHI167jr Chinese Agate, Middle-Class Mine Kowallabe Mohs hardness of 7This is a polished specimen featuring yellow agate with a crystal ring and druzy filled vugg. 10 cm x 8. 3 cm x 7. 5 cm 2. 22 lbs Agates from the Middle Class mine show a broad range of colors including red, yellow, purple, brown, blue, and black. Agates from the Middle Class mine also often contain druzy pockets with hematite and calcite crystals. Agates from this mine also contain a higher percentage of heat and stress fractures from the mining