Hardystonite





 Location Found: Franklin (Type Locality)
     
 
 Year Discovered: 1899
     
 Formula: Ca2Zn(Si2O7)
 Essential Elements: Calcium, Oxygen, Silicon, Zinc
 All Elements in Formula: Calcium, Oxygen, Silicon, Zinc
     
 IMA Status: Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
     
Fluorescent Mineral Properties

 Shortwave UV light: Violet to violet-blue
 Mid wave UV light: Violet to violet-blue
 Longwave UV light: Violet to violet-blue
     
 To find out more about this mineral at minDat's website, follow this link   Hardystonite

     
 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.411

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.59


The Picking Table References
 PT Issue and PageDescription / Comment
V. 57, No. 2 - Fall 2016, pg. 19Fluorescent Minerals of Franklin and Sterling Hill, N.J., Part 1, Richard C. Bostwick - Hardystonite
V. 52, No. 2 - Fall 2011, pg. 7Hardystonite Fluorescence Emission Spectrum
View IssueV. 45, No. 1 - Spring 2004, pg. 11The 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 - Hardystonite
View IssueV. 33, No. 2 - Fall 1992, pg. 10The Check List of Franklin-Sterling Hill Fluorescent Minerals - Hardystonite (Fluorescent Info)
View IssueV. 28, No. 1 - Spring 1987, pg. 23Mineral Notes Research Reports, The Esperite Assemblage, Hardystonite
View IssueV. 18, No. 2 - September 1977, pg. 13The Fluorescent Minerals of Franklin and Sterling Hill, NJ by Richard C. Bostwick - Hardystonite
View IssueV. 15, No. 2 - August 1974, pg. 9Fluorescent Corner - Hardystonite
View IssueV. 13, No. 2 - August 1972, pg. 12The Fluorescent Minerals of Franklin/Ogdensburg Area by Frank Z. Edwards - Hardystonite (Fluorescent Info)
View IssueV. 9, No. 1 - February 1968, pg. 13The Exclusive Minerals of Franklin/Ogdensburg, N.J. (as of January 1968) by Frank Z. Edwards - Hardystonite (Short Note)
     
Images

     
Hardystonite (SW FL lilac, LW FL cream), willemite, franklinite, Franklin NJHardystonite (SW FL lilac, LW FL cream), willemite, franklinite, Franklin NJ under shortwave UV Light
Hardystonite, willemite and franklinite, from Franklin, NJ. Photo by WP.
Hardystonite, willemite and franklinite, from Franklin, NJ under shortwave UV light. The hardystonite fluoresces light violet and willemite green, franklinite is non-fluorescent. Photo by WP.
Hardystonite (SW FL lilac, LW FL cream), willemite, franklinite, Franklin NJ under longwave UV Light
Hardystonite, willemite and franklinite, from Franklin, NJ under longwave UV light. The hardystonite fluoresces cream to white (uncommon) and light violet, franklinite is non-fluorescent. Photo by WP.


Hardystonite, willemite, esperite, franklinite and minor calcite from Franklin, NJHardystonite, willemite, esperite, franklinite and minor calcite from Franklin, NJ under shortwave UV Light
Hardystonite, willemite, esperite, franklinite and minor calcite from Franklin, NJ. 4 3/4" x 3 5/8". From the collection of, and photo by Robert A. Boymistruk.
Hardystonite, willemite, esperite, franklinite and minor calcite from Franklin, NJ under shortwave UV light. 4 3/4" x 3 5/8". The hardystonite fluoresces violet, willemite green, esperite yellow and calcite red-orange, the franklinite is non-fluorescent. From the collection of, and photo by Robert A. Boymistruk.


Hardystonite, clinohedrite, willemite, calcite, franklinite and zincite from Franklin, NJHardystonite, clinohedrite, willemite, calcite, franklinite and zincite from Franklin, NJ under shortwave UV Light
Hardystonite, clinohedrite, willemite, calcite, franklinite (black) and zincite (light orange brown) from Franklin, New Jersey. 5 1/4" x 3 7/8". From the collection of, and photo by Robert A. Boymistruk.
Hardystonite, clinohedrite, willemite, calcite, franklinite and zincite from Franklin, NJ under shortwave UV light. The hardystonite fluoresces violet blue, calcite red orange, willemite green and clinohedrite orange, and the franklinite is non-fluorescent. 5 1/4" x 3 7/8". From the collection of, and photo by Robert A. Boymistruk.


Hardystonite, clinohedrite, willemite, calcite, garnet and franklinite from Franklin, NJHardystonite, clinohedrite, willemite, calcite, garnet and franklinite from Franklin, NJ under shortwave UV Light
Hardystonite, clinohedrite, willemite, calcite, garnet (dark brown) and franklinite (black) from Franklin, New Jersey. 5 3/8" x 3 1/4". From the collection of, and photo by Robert A. Boymistruk.
Hardystonite, clinohedrite, willemite, calcite, garnet and franklinite from Franklin, NJ under shortwave UV light. The hardystonite fluoresces violet blue, calcite red orange, willemite green and clinohedrite orange, the garnet and franklinite are non-fluorescent. 5 3/8" x 3 1/4". From the collection of, and photo by Robert A. Boymistruk.


Hardystonite vein, willemite, calcite, and franklinite from Franklin, NJHardystonite vein, willemite, calcite, and franklinite from Franklin, NJ under shortwave UV Light
Hardystonite vein, willemite, calcite and franklinite (black) from Franklin, New Jersey. 10" x 6". Photo by WP.
Hardystonite vein, willemite, calcite, and franklinite from Franklin, NJ under shortwave UV light. The hardystonite fluoresces violet blue, calcite red orange and willemite green, the franklinite is non-fluorescent. 10" x 6". Photo by WP.







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