Siderite, Calcite, Dolomite 

Locality: Kaiwu Mine, Hezhang County, Bijie, Guizhou, China.

Brown larger lamellar Siderite, pale yellow translucent Calcite , smaller white Dolomite, associated with some shiny golden luster Pyrite, sharp crystals, large color contrast.

Size: 9-8-3.5cm

NO.20230403SCD16.

More Details: 1 video and 4 pictures:

The specimen 4 pictures: