Dioptasa
Dioptasa is a mineral with formula CuSiO₃·H₂O, in the Silicatos (Ciclosilicatos) group. This specimen comes from Mina Cobra, Pampa Nazca, Ica, Congo and joined the Terrium collection in 2025.
Description
Dioptase in a small fracture from where the Nazca Lines are
Technical data
- Catalogue No.
- 0583
- Internal reference
- X0279
- Composition
- CuSiO₃·H₂O
- Name
- Dioptasa
- Group
- Silicatos (Ciclosilicatos)
- Matrix
- Gneiss
- Mine
- Mina Cobra
- District / Municipality
- Pampa Nazca
- Province
- Ica
- Country
- Congo
- Size (cm)
- 4 x 3 x 2
- Acquired
- 2025
- Etymology
- From the Greek 'dia' (διά), 'through', and 'optos' (ὀπτός), 'visible'. It was named this way because, according to René Just Haüy, the internal cleavage planes could be seen simply by looking through the crystals.
- Quality
- Buena
- Value trend
- Estable
Related specimens
- Berilo (Aguamarina) — China
- Berilo (Aguamarina) — Pakistán
- Berilo (Aguamarina) — Namibia
- Berilo (Aguamarina) — Myanmar
- Cordierita — España
- Dioptasa — Congo
- Dioptasa — Congo
- Dioptasa — Namibia