Hardystonite is a rare calcium zinc silicate mineral first described from the Franklin, New Jersey, U.S. zinc deposits. It often contains lead, which was detrimental to the zinc smelting process, so it was not a useful ore mineral. Like many of the famous Franklin minerals, hardystonite responds to short wave ultraviolet (254 nm wavelength) light, emitting a fluorescence from dark purple to bright violet blue. In daylight, it is white to gray to light pink in color, sometimes with a vitreous or greasy luster. It is very rarely found as well formed crystals, and these are usually rectangular in appearance and rock-locked.
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| - Hardystonita (ca)
- Hardystonita (es)
- Hardystonite (en)
- Hardystonita (eu)
- Hardystonite (fr)
- Hardystonite (it)
- Hardystoniet (nl)
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| - La hardystonita és un mineral de la classe dels sorosilicats, i dins d'aquesta pertany a l'anomenat "grup de la mel·lilita". Va ser descoberta l'any 1899 a Hardyston Township, un petit poble avui desaparegut dins del municipi de Franklin, a l'estat de Nova Jersey (EUA), sent nomenat així per aquella antiga localitat. (ca)
- Hardystonita mineral bat da. (eu)
- La hardystonita es un mineral de la clase de los sorosilicatos, y dentro de esta pertenece al llamado "grupo de la melilita". Fue descubierta en 1899 en Hardyston Township, un pequeño pueblo hoy desaparecido dentro del municipio de Franklin, en el estado de Nueva Jersey (EE. UU.), siendo nombrado así por aquella antigua localidad. (es)
- La hardystonite est un minéral de la classe des silicates, sous-classe des sorosilicates, et au sein de cette dernière, au "groupe de la mélilite". Il a été découvert en 1899 à Hardyston Township, un petit village aujourd'hui disparu de la municipalité de Franklin, dans l'état du New Jersey (USA) et a été nommé d'après cette ancienne localité. (fr)
- La hardystonite è un minerale appartenente al gruppo della melilite. (it)
- Het mineraal hardystoniet is een calcium-zink-silicaat met de chemische formule Ca2ZnSi2O7. Het behoort tot de sorosilicaten. (nl)
- Hardystonite is a rare calcium zinc silicate mineral first described from the Franklin, New Jersey, U.S. zinc deposits. It often contains lead, which was detrimental to the zinc smelting process, so it was not a useful ore mineral. Like many of the famous Franklin minerals, hardystonite responds to short wave ultraviolet (254 nm wavelength) light, emitting a fluorescence from dark purple to bright violet blue. In daylight, it is white to gray to light pink in color, sometimes with a vitreous or greasy luster. It is very rarely found as well formed crystals, and these are usually rectangular in appearance and rock-locked. (en)
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| - a = 7.8287 Å (en)
- c = 5.0140 Å; Z = 2 (en)
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| - Hardystonite is fluorescing blue in this Franklin Furnace specimen. Red is calcite, and green is willemite (en)
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| - H-M symbol: (en)
- Scalenohedral (en)
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| - light brownish white, pale greyish-white, very pale pink (en)
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| - La hardystonita és un mineral de la classe dels sorosilicats, i dins d'aquesta pertany a l'anomenat "grup de la mel·lilita". Va ser descoberta l'any 1899 a Hardyston Township, un petit poble avui desaparegut dins del municipi de Franklin, a l'estat de Nova Jersey (EUA), sent nomenat així per aquella antiga localitat. (ca)
- Hardystonita mineral bat da. (eu)
- Hardystonite is a rare calcium zinc silicate mineral first described from the Franklin, New Jersey, U.S. zinc deposits. It often contains lead, which was detrimental to the zinc smelting process, so it was not a useful ore mineral. Like many of the famous Franklin minerals, hardystonite responds to short wave ultraviolet (254 nm wavelength) light, emitting a fluorescence from dark purple to bright violet blue. In daylight, it is white to gray to light pink in color, sometimes with a vitreous or greasy luster. It is very rarely found as well formed crystals, and these are usually rectangular in appearance and rock-locked. Hardystonite has a chemical composition of Ca2ZnSi2O7. It is frequently found with willemite (fluoresces green), calcite (fluoresces red), and clinohedrite (fluoresces orange). Hardystonite can be found altered to clinohedrite CaZn(SiO4)·H2O through direct hydrothermal alteration.Other minerals often associated with hardystonite are franklinite, diopside, andradite garnet, and esperite (fluoresces yellow). It was first described in 1899 by J.E. Wolff, when the New Jersey Zinc Company mines were located in what was called Franklin Furnace, in Hardyston Township, New Jersey. (en)
- La hardystonita es un mineral de la clase de los sorosilicatos, y dentro de esta pertenece al llamado "grupo de la melilita". Fue descubierta en 1899 en Hardyston Township, un pequeño pueblo hoy desaparecido dentro del municipio de Franklin, en el estado de Nueva Jersey (EE. UU.), siendo nombrado así por aquella antigua localidad. (es)
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