Hedenbergite Quartz - Specimen steel mandrel set The chalcopyrite likely crystallized first

The chalcopyrite likely crystallized first or along early growth surfaces

silky sheen that tremolite is known for

particularly in hydrothermal veins where silica-rich fluids crystallize over time

Shaft Diameter: 8mm                                                                                                          Overall Length: 180mm

FeO/Fe2_22O3_33

Hedenbergite Quartz - Specimen steel mandrel set The chalcopyrite likely crystallized firstMined from: Huanggang Mines Huanggang Fe Sn deposit, in Hexigten Banner, Chifeng City, Inner Mongolia, China. Description: This one of a kind Hedenbergite mineral specimen from Mongolia, China features a dense spray of pale green grey to smoky translucent crystals rising in a radial formation from a darker brown and grey matrix. The crystals show sharp pointed terminations, glassy faces, and a soft frosted surface texture, with tiny dark mineral