Glauconita
Glauconita is a mineral with formula (K,Na)(Fe³⁺,Al,Mg)₂(Si,Al)₄O₁₀(OH)₂, in the Silicatos (Filosilicatos) group. This specimen comes from Costa de Almería, Almería, Andalucía, España.
Description
Green clay mineral, typical of ancient marine environments.
History of this specimen
I picked it up while walking, reminding me of the whole peninsular coast.
Technical data
- Catalogue No.
- 0532
- Internal reference
- X0093
- Composition
- (K,Na)(Fe³⁺,Al,Mg)₂(Si,Al)₄O₁₀(OH)₂
- Name
- Glauconita
- Group
- Silicatos (Filosilicatos)
- District / Municipality
- Costa de Almería
- Province
- Almería
- Region
- Andalucía
- Country
- España
- Etymology
- From the Greek 'glaukos' (γλαυκός), meaning 'bluish green', in reference to its characteristic color.
- Quality
- Buena
- Value trend
- Estable
Related specimens
- Abellaíta — España
- Abernathyita — España
- Abernathyita — España
- Abernathyita — España
- Aerenita — España
- Aerinita (fibrosa) — España
- Analcima — España
- Analcima — España