Location Found: Franklin
 Formula: ☐{Ca2}{Fe52+}(Si8O22)(OH)2
 Essential Elements: Calcium, Hydrogen, Iron, Oxygen, Silicon
 All Elements in Formula: Calcium, Hydrogen, Iron, Oxygen, Silicon
 IMA Status: Approved
 To find out more about this mineral at minDat's website, follow this link   Ferro-actinolite

Dunn, Pete J. (1995). Franklin and Sterling Hill New Jersey: the world's most magnificent mineral deposits. Franklin, NJ.: The Franklin-Ogdensburg Mineralogical Society. p.454. 'Ferroactinolite'

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