Siderita
Siderita is a mineral with formula FeCO₃, in the Carbonatos group. This specimen comes from Mina La Gitana, Sopuerta, Vizcaya, España.
Description
Siderite matrix with brownish-reddish rhombohedral crystals, with a play of reflections ranging from brown to golden, accompanied by small beige formations that could be calcite or altered siderite. The piece stands out for the arrangement in cavities and the adamantine luster of its crystals.
About Siderita
The siderite formed under hydrothermal conditions, and its color may be due to hematite inclusions. It comes from a mine in Biscay known for its aesthetic pieces.
Technical data
- Catalogue No.
- 0596
- Internal reference
- X0294
- Composition
- FeCO₃
- Name
- Siderita
- Group
- Carbonatos
- Matrix
- Pizarra
- Mine
- Mina La Gitana
- District / Municipality
- Sopuerta
- Province
- Vizcaya
- Country
- España
- Size (cm)
- 7 x 6 x 5
- Weight
- 220 g
- Etymology
- From the Greek 'sideros' (iron).
- Quality
- Buena
- Value trend
- Estable
Related specimens
- Abellaíta — España
- Abernathyita — España
- Abernathyita — España
- Abernathyita — España
- Aerenita — España
- Aerinita (fibrosa) — España
- Analcima — España
- Analcima — España