Esfalerita
Esfalerita is a mineral with formula ZnS, in the Sulfuros group. This specimen comes from Mina Troya, Mutiloa, Gipuzkoa, Euskadi, España.
Description
Brown crystals with a resinous luster. Well-formed zinc sulfide.
About the locality
The Troya mine, in Mutiloa (Gipuzkoa), was worked by Exminesa between 1986 and 1993, when a collapse forced its closure. It was an underground lead and zinc gallery more than one kilometer long. Closed and flooded since 2009, today only the tailings pond remains.
Technical data
- Catalogue No.
- 0620
- Composition
- ZnS
- Name
- Esfalerita
- Group
- Sulfuros
- Category
- Cupidium
- Mine
- Mina Troya
- District / Municipality
- Mutiloa
- Province
- Gipuzkoa
- Region
- Euskadi
- Country
- España
- Etymology
- From the Greek «sphaleros», “deceptive”, for its resemblance to galena despite containing no lead.
- Quality
- Buena
- Value trend
- Al alza
Related specimens
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- Barita — España
- Calcita (Dorada) — España
- Jacinto de Compostela — España
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- Magnetita — España
- Malaquita (Microbotrioidal) — España
- Oropimente — China