Hedenbergite Quartz - Mineral Size:3X-Large with minor sulfur

with minor sulfur

Species: Coltraneia

Approximate Size of 1 piece: 7cm x 7cm x 4

15 Piece SetApproximate Size of 1 box set: 18cm x 10cm x 2

so you can trade objects out over time and the stretchy plastic will not be deformed

Hedenbergite Quartz - Mineral Size:3X-Large with minor sulfurMined from: Huanggang Mine, Chifeng City, Inner Mongolia, China Description: Hedenbergite is an iron rich member of the pyroxene mineral group, formed primarily in high temperature environments such as contact metamorphic zones and skarn deposits. The specimens from the Huanggang Mine in Chifeng City, Inner Mongolia, are particularly notable for their well formed dark green to nearly black prismatic crystals, often growing alongside minerals such as