Quartz

specimen number:
2341433

location:
Sidi Rahal, El Kelaa des Sraghna, Morocco

description:
Very attractive specimen, the top of this matrix is aesthetically scattered with deep red to colorless translucent to transparent lustrous crystals of quartz measuring to 4.5 cm in length. This is in terrific condition. The red color is due to the presence of iron oxide.

Located in the El Kelaa des Sraghna Province of Morocco, Sidi Rahal is renowned for its basaltic host rocks associated with ancient volcanic activity in the High Atlas region. Over geological time, hydrothermal fluids rich in silica circulated through gas cavities and fractures within these volcanic flows, depositing quartz and chalcedony. The locality is famous among mineral collectors for producing spectacular geodes containing sharp quartz crystals, often displaying amethystine zoning, agate linings, and distinctive inclusions. Mining in the area is largely conducted by local artisanal miners who excavate small shafts and pits to carefully hand-extract intact geodes from the weathered basalt matrix, supplying global markets with high-quality quartz specimens.

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