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Clinothulite from
Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA

Locality type:Hill
Species:Clinozoisite var: Clinothulite
Comments:Qualitative SEM-EDS by Kerry Day:
Al (1.49 KeV) = 1221; Si (1.74) = 1459; Ca (3.69) = 1016; Mn (5.90) = 33; Fe (6.40) = 51; Background values 2/10 = 85/9
"Zoisite/Clinozoisite/Thulite. The smallest amount of Mn can colour an Epidote Group mineral cherry red."

Clinozoisite is very common at Joppa Hill, usually pale green, sometimes colorless, very rarely pink. Zoisite does not occur at the locality. "Thulite" = Mn-bearing zoisite. "Clinothulite" = Mn-bearing clinozoisite.
Confirmation Methods:Visually Identified, SEM-EDS
References:P Cristofono collection, 2008
Mineral Data:Click here to view Clinothulite data
Locality Data:Click here to view Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA
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