Oro Nativo
Oro is a mineral with formula Au, in the Elementos nativos group. This specimen comes from Mina Roata, Cavnic, Maramureș, Transilvania, Rumanía and joined the Terrium collection in 2015.
Description
Micromount of native gold forming a claw-like growth on marmatite matrix. Best seen under a loupe.
About Oro
At this mine gold occurs as very small but well-defined crystals. These specimens are valued less for size than for the sharpness of the gold and the strong contrast with the host sulphides.
About the locality
Roata Mine, in the Cavnic mining district, has been one of the most recognised sources of crystallised gold in Eastern Europe. Since 2008 all mines have been closed; the entrances sealed, the water pumps switched off, and the surface structures either demolished or about to be demolished.
Technical data
- Catalogue No.
- 0013
- Composition
- Au
- Name
- Oro
- Variety
- Nativo
- Group
- Elementos nativos
- Category
- Cupidium
- Matrix
- Esfalerita
- Mine
- Mina Roata
- District / Municipality
- Cavnic
- Province
- Maramureș
- Region
- Transilvania
- Country
- Rumanía
- Size (cm)
- 0.4 x 0.2 x 0.2
- Weight
- 0.07 g
- Acquired
- 2015
- Ex-collection
- Francisco Becerra
- Etymology
- From Latin "aurum", source of the chemical symbol Au, with the sense of intense brightness or dawn. The Spanish "oro" derives from the same Latin root via the Romance languages.
- Quality
- Buena
- Value trend
- Al alza
Related specimens
- Arsénico (Nativo) — Alemania
- Cobre — Australia
- Estibina — Rumanía
- Estibina — Rumanía
- Oro (Nativo) — Canadá
- Oro (Nativo) — Estados Unidos
- Oro (Nativo) — Estados Unidos
- Oro (Nativo) — Canadá