Hardystonite
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Physical & Optical Properties
Mohs Hardness
| Mohs | Reference mineral | Hardystonite |
|---|---|---|
| 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 Hardystonite
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About Hardystonite
A hardystonite é um silicato de cálcio e zinco raro, encontrado principalmente em Franklin, New Jersey, EUA. É notable pela sua intensa fluorescência azul-violeta sob luz ultravioleta de onda curta. Os cristais são geralmente brancos a incolores sob luz normal, tornando-se notáveis apenas com luz UV. É principalmente uma pedra de colecionador do famoso complexo mineral de Franklin, valorizada pelos entusiastas de minerais fluorescentes.