Fluorita Dorada
Fluorita is a mineral with formula CaF₂, in the Haluros group. This specimen comes from Mina Moscona, El Pontón de Solís, Corvera, Asturias, España and joined the Terrium collection in 1995.
Description
Intergrown aggregate of small yellow (golden) cubic fluorite crystals, overlain by a layer of lenticular dolomite. Very good crystallisation and lustre in both. Micro-specks of chalcopyrite. Fluorescent and slightly phosphorescent.
About Fluorita
This is the typical fluorite from the Moscona Mine: golden yellow, with or without a calcite or dolomite rim. It is the only Asturian local type in which phosphorescence occurs with some regularity.
About the locality
One of the largest and more recent (1968) fluorite deposits in Asturias and in Europe. The gallery network is so extensive that it takes about an hour, or even a little more, by truck from the portal to the furthest working faces. It has produced millions of crystallised fluorite specimens, together with dolomite and barite, among them many reference pieces for European collecting. Its barite usually comes out white, but in many cases turns blue after exposure to sunlight or ultraviolet light.
Technical data
- Catalogue No.
- 0017
- Composition
- CaF₂
- Name
- Fluorita
- Variety
- Dorada
- Group
- Haluros
- Category
- Cresta Montis
- Associations
- dolomita, calcopirita
- Mine
- Mina Moscona
- District / Municipality
- El Pontón de Solís
- Province
- Corvera
- Region
- Asturias
- Country
- España
- Size (cm)
- 5.6 x 3.2 x 2.4
- Weight
- 51.5 g
- Acquired
- 1995
- Etymology
- From the Latin "fluere", 'to flow', in reference to its historical use as a flux.
- Quality
- Muy buena
- Value trend
- Estable
Related specimens
- Abellaíta — España
- Abernathyita — España
- Abernathyita — España
- Abernathyita — España
- Aerenita — España
- Aerinita (fibrosa) — España
- Analcima — España
- Analcima — España