CHI207jr Chinese Agate, Middle-Class Mine Pyrite and has very little black

and has very little black in it

Mohs Hardness Scale

Black Tourmaline crystal with natural termination

Septarian concretions or Septarian nodules

25" x 3" x 1

CHI207jr Chinese Agate, Middle-Class Mine Pyrite and has very little blackThis 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