Cuarzo Prasio
Cuarzo is a mineral with formula SiO₂, in the Silicatos [Tectosilicatos (Grupo Cuarzo)] group. This specimen comes from Isla de Sérifos, Koutalas / Megalo Livadi, Pireo, Cícladas, Grecia and joined the Terrium collection in 1993.
Description
Aggregate of green quartz (prase) forming an artichoke-like group: a dominant crystal surrounded by smaller crystals. On the matrix, small rosettes of specular haematite. Typical of Serifos.
About Cuarzo
Prase is a green variety of quartz coloured by microscopic inclusions of actinolite. On Serifos the quartz crystals grow aligned and parallel, producing the distinctive vegetal-looking forms. This habit is characteristic of Serifos.
About the locality
Many years ago the island authorities banned mineral collecting. No new specimens have come out for some time. These classic pieces command higher prices.
Technical data
- Catalogue No.
- 0258
- Composition
- SiO₂
- Name
- Cuarzo
- Variety
- Prasio
- Group
- Silicatos [Tectosilicatos (Grupo Cuarzo)]
- Category
- Estélites
- Associations
- hematites
- Mine
- Isla de Sérifos
- District / Municipality
- Koutalas / Megalo Livadi
- Province
- Pireo
- Region
- Cícladas
- Country
- Grecia
- Size (cm)
- 8.5 x 5.5 x 1.7
- Weight
- 55.2 g
- Acquired
- 1993
- Ex-collection
- Dr. Walter Kühnel
- Etymology
- The name "prase" comes from the Greek "prason" ('leek'), in reference to its colour.
- Quality
- Notable
- Value trend
- Al alza
Related specimens
- Adamita (Cuprífera) — Grecia
- Annabergita — Grecia
- Cristobalita — Estados Unidos
- Cuarzo — Madagascar
- Cuarzo (Ahumado) — Namibia
- Amatista — Kazajistán
- Cuarzo (Cloritado) — Nepal
- Cuarzo (Cloritado) — Nepal