Xonotlite





 Location Found: Franklin
     
 
 Year Discovered: 1866
     
 Formula: Ca6(Si6O17)(OH)2
 Essential Elements: Calcium, Hydrogen, Oxygen, Silicon
 All Elements in Formula: Calcium, Hydrogen, Oxygen, Silicon
     
 IMA Status: Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
     
Fluorescent Mineral Properties

 Shortwave UV light: Moderately bright violet
 Mid wave UV light: Violet
 Longwave UV light: Violet
 Additional Information: Phosphoresces moderately bright violet. Fluoresces best at shortwave
     
 To find out more about this mineral at minDat's website, follow this link   Xonotlite

     
 References:
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.450

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.84


The Picking Table References
 PT Issue and PageDescription / Comment
V. 58, No. 1 - Spring 2017, pg. 24Fluorescent Minerals of Franklin and Sterling Hill, N.J., Part 2, Richard C. Bostwick - Xonotlite
View IssueV. 45, No. 1 - Spring 2004, pg. 15The Art of Fluorescent Mineral Photography, With Special Attention to the Minerals of Franklin and Sterling Hill Photographing the More Popular Franklin and Sterling Hill Fluorescent Minerals - Xonotlite
View IssueV. 33, No. 2 - Fall 1992, pg. 11The Check List of Franklin-Sterling Hill Fluorescent Minerals - Xonotlite (Fluorescent Info)
View IssueV. 18, No. 2 - September 1977, pg. 22The Fluorescent Minerals of Franklin and Sterling Hill, NJ by Richard C. Bostwick - Xonotlite
     
Images

     
Xonotlite, axinite, willemite, from FranklinXonotlite, axinite, willemite, from Franklin under shortwave UV Light
Xonotlite, axinite, willemite, franklinite (black), and hendricksite mica (brown), from Franklin, New Jersey. From the collection of, and photo by JVF.
Xonotlite, axinite, willemite, from Franklin, New Jersey under shortwave UV light. The xonotlite fluoresces purple, axinite red, willemite green, and the franklinite and hendricksite mica is non-fluorescent. From the collection of, and photo by JVF.


Xonotlite crystals, roeblingite, amethystine clinohedrite, feldspar and hendricksite mica from Franklin, NJXonotlite crystals, roeblingite, amethystine clinohedrite, feldspar and hendricksite mica from Franklin, NJ under shortwave UV Light
Xonotlite crystals (white, tan), roeblingite (white), amethystine clinohedrite (light gray purple tint), feldspar (tan) and hendricksite mica (black) from Franklin, NJ. From the collection of, and photo by Robert A. Boymistruk.
Xonotlite crystals, roeblingite, amethystine clinohedrite, feldspar and hendricksite mica from Franklin, NJ under shortwave UV light. The xonotlite fluoresces violet and gray, roeblingite red, amethystine clinohedrite yellow and feldspar maroon, the hendricksite is non-fluorescent. From the collection of, and photo by Robert A. Boymistruk.







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