Epidote Morocco Atlas ref557

This epidote comes from the Moroccan Middle Atlas, an area known for producing compact, well-structured crystalline surfaces. The specimen shows a dense coverage of small olive-green crystals, typical of this species formed in calcium-rich metamorphic rocks. The bright surfaces observed are due to the mineral’s clean cleavage, which reflects light even under soft illumination.

The green colour, more or less pronounced depending on the area, is linked to the presence of iron within the mineral structure. The crystals rest on a lighter matrix. The piece was collected in 2006, a period during which several small discoveries highlighted these well-developed epidote aggregates.

For care and maintenance, gentle dusting with an air blower or a soft brush is sufficient. Avoid hot water or household cleaning products, as the matrix can be slightly sensitive to aggressive cleaning methods.

Presented specimen: W: 35 × H: 53 mm – 87 g (with base).

🟢 Mineral Information

- Chemical formula: Ca₂(Al,Fe)₃(SiO₄)₃(OH)

- Crystal system: Monoclinic

- Lustre: Vitreous to resinous

- Hardness: 6–7 (Mohs)

- Density: Approximately 3.3–3.5 g/cm³

- Colours: Olive green to brown-green depending on iron content

- Typical associations: Quartz, actinolite, clinozoisite, calcite