TPQ91AN5: Parallel aggregates of Quartz crystals (variety prase) with a very sharp dipyramidal habit and the absence of prism faces. They exhibit bright luster and an intense green color due to inclusions, probably Actinolite and/or Hedenbergite. In this specimen, the same Quartz coincides with a very different habit that could correspond to a first growth phase together with Calcite, which later disappeared, leaving the Quartz as parallel, flattened and almost lamellar polycrystalline forms following the spaces left by the Calcite.
Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region  China (2021)

Specimen size: 14 × 13.1 × 7 cm = 5.51” × 5.16” × 2.76”

Main crystal size: 4 × 1.2 cm = 1.57” × 0.47”