Epidote, epidote-(Sr) and hancockite have all been reported from here. So clearly "epidote group" is valid. I added this to the list because for some specimens, the dominant specis can not be determined without WDS.

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Original Entry	Epidote, epidote-(Sr) and hancockite have all been reported from here. So clearly "epidote group" is valid. I added this to the list because for some specimens, the dominant specis can not be determined without WDS.
Mindat Ref. ID	16090299	Long-form Identifier	mindat:1:5:16090299:6
GUID	0
Full Reference	Epidote, epidote-(Sr) and hancockite have all been reported from here. So clearly "epidote group" is valid. I added this to the list because for some specimens, the dominant specis can not be determined without WDS.
Plain Text	Epidote, epidote-(Sr) and hancockite have all been reported from here. So clearly "epidote group" is valid. I added this to the list because for some specimens, the dominant specis can not be determined without WDS.

Map of Localities

Mineral Occurrences

Locality	Mineral(s)
Franklin Mine, Franklin, Sussex County, New Jersey, USA	ⓘ Epidote Group

	Almost all members of this group have been verified from MSH. The category is neeed for partially identified specimens
	Both rinkite-(Ce) and moandrite-(Ce) have been verified from MSH. This entry is needed for specimens that have not been fully analyzed.
	necessary entry for specimens in which the dominant element has not been determined
	*Dollase, W. A. (1971) Refinement of the crystal structures of epidote, allanite, and hancockite. American Mineralogist, 56 (3-4) 447-464*
	The most prudent course of action would be to treat all unanalyed samples of these minerals as members of the blodite group, and this should be added to the mineral list for this locality.
	At the very least, "pumpellyite group" should be added to the mineral list for this locality.
	*(2011) Epidote-(Sr). Handbook of Mineralogy. Mineralogical Society of America*
	Brownfield, Michael (2013) Epidote from the Zard Mountains, Kharan, Balochistan, Pakistan. https://www.mindat.org/article.php/1770/Epidote+from+the+Zard+Mountains%2C+Kharan%2C+Balochistan%2C+Pakistan
	Revheim, Olav, King, Vandall T. (2016) Epidote supergroup nomenclature: The names hancockite, niigataite and tweddillite reinstated. Mineralogical Magazine, 80 (5) 877-880 doi:10.1180/minmag.2016.080.029
	"Giorgio Bortolozzi (visual identification)". Although not analysed, the suffix -(Ce) has been attributed because all analytical data on britholites from other localities of the Vico volcanic complex show that the mineral is cerium dominant.
	Ao, Aliba (2024) Tectonic slices of greenschist – epidote blueschist – epidote amphibole schist – garnet epidote amphibole schist from the Nagaland ophiolite complex, NE India: a look into their metamorphic and tectonic evolution. International Geology Review, 66 (10) 1929-1955 doi:10.1080/00206814.2023.2263769

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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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Epidote, epidote-(Sr) and hancockite have all been reported from here. So clearly "epidote group" is valid. I added this to the list because for some specimens, the dominant specis can not be determined without WDS.

Map of Localities

Mineral Occurrences

See Also