Lazurite & Pyrite on Calcite | blue crystal cluster, natural mineral specimenLazurite on calcite from Afghanistan typically forms as rich blue lazurite crystals embedded in a matrix of creamy white calcite, creating a striking color contrast. Some specimens have little specks of metallic pyrite shimmering throughout the matrix. Lazurite is the main mineral that contributes to lapis lazulis iconic deep blue hue. Specimens from Afghanistan, especially the Sar e Sang mines in Badakhshan Province, are renowned for their high color