Location Found: Franklin
 Year Discovered: 1890
 Formula: (K,Na,Ca)2Mn8(Si,Al)12(O,OH)32 · 8H2O
 Essential Elements: Hydrogen, Manganese, Oxygen, Potassium, Silicon
 All Elements in Formula: Aluminum, Calcium, Hydrogen, Manganese, Oxygen, Potassium, Silicon, Sodium
 IMA Status: Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
 To find out more about this mineral at minDat's website, follow this link   Ganophyllite

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.494

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.57

The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 30, No. 1 - Spring 1989, pg. 16Research Reports, Ganophyllite
View IssueV. 25 No. 2 - Fall 1984, pg. 8Mineral Notes Research Reports, Ganophyllite
View IssueV. 16, No. 1 - February 1975, pg. 6Mineral Notes - Ganophyllite
View IssueV. 10, No. 1 - February 1969, pg. 6Mineral Notes - Bannisterite/Ganophyllite/Stilpnomelane
View IssueV. 8, No. 2 - August 1967, pg. 8Mineralogical Data - Bannisterite/Ganophyllite

Ganophyllite crystals, hendricksite, roeblingite, clinohedrite and willemite from Franklin, NJ
Ganophyllite crystals (light to medium brown), hendricksite (black), roeblingite (porcelain white), clinohedrite (white) and willemite (light green) from Franklin, NJ. Field of view 1" x 3/4". From the collection of, and photo by Robert A. Boymistruk.

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