Willemite
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Physical & Optical Properties
Mohs Hardness
| Mohs | Reference mineral | Willemite |
|---|---|---|
| 1 | Talc | |
| 2 | Gypsum | |
| 3 | Calcite | |
| 4 | Fluorite | |
| 5 | Apatite | |
| 6 | Orthoclase | |
| 7 | Quartz | |
| 8 | Topaz | |
| 9 | Corundum | |
| 10 | Diamond |
Crystal System
Value & Market
Where to Buy Willemite
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About Willemite
A willemite é um mineral de silicato de zinco célebre pela sua fluorescência verde brilhante extraordinariamente intensa sob luz ultravioleta, que pode ser 50 vezes mais forte do que a de outros minerais fluorescentes. A mina Franklin, em Nova Jérsia, EUA, produziu os exemplares mais espetaculares de willemite e calcite fluorescente do mundo. Os cristais transparentes de cor verde, amarela ou vermelha são por vezes lapidados para colecionadores.