Calcite on Siderite - Specimen mounted mineral samples They are durable

They are durable

These meteorites provide critical insight into early solar system chemistry and the potential delivery of organic material to Earth

this jadeite tumble is both a geological and cultural treasure

and the long memory of the earth

compact look common to oreodont skull material

Calcite on Siderite - Specimen mounted mineral samples They are durableMined from: Kaiwu Mine, Hezhang County, Bijie, Guizhou Province, China Description: This one of a kind Calcite on Siderite mineral specimen from China features a low, plate like formation covered in olive brown to golden brown Siderite crystals, with a strong bladed and stacked crystal habit across the display face. The piece has a natural pocket like shape, with glassy to lightly metallic looking brown crystals lining the surface and contrasting