CHI207jr Chinese Agate, Middle-Class Mine Pyrite Black Tourmaline crystal with natural

Black Tourmaline crystal with natural termination

Mohs Hardness Scale

38mm x 28mm x 7mm

the mine has been continually worked to this day

CHI207jr Chinese Agate, Middle-Class Mine Pyrite Black Tourmaline crystal with naturalThis is a polished specimen featuring yellow, pink, and white banded agate and a crystal center. 6. 5 cm x 4. 8 cm 0. 52 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 process