TURNEAUREITE



Turneaureite is a calcium arsenate chlorine mineral of the apatite group and the Cl analogue of johnbaumite.
Turneaureite was first described from Franklin, New Jersey; Langban, Sweden; and Balmat, New York, by Dunn et al. (1985b). It has not been found at Sterling Hill.
Franklin turneaureite occurs only as massive material. Hand-sized specimens are known; most are smaller. Turneaureite is white to grayish white to colorless with a subvitreous to slightly greasy luster. Cleavage was not observed. The hardness is approximately 5. Turneaureite is fluorescent with a bright orange color in shortwave ultraviolet; phosphorescence is weakly discernible. It is best verified using quantitative chemical tests and X-ray methods.
Turneaureite occurs as massive specimens, some larger than 5 cm in diameter, composed of massive turneaureite as the dominant mineral. It is associated with centimeter-sized aggregates of andradite, magnetite, and pink manganoan calcite. It may have been locally abundant. (Dunn, 1995)

 Location Found: Franklin (Type Locality)
     
 
 Year Discovered: 1983
     
 Formula: Ca5(AsO4)3Cl
 Essential Elements: Arsenic, Calcium, Chlorine, Oxygen
 All Elements in Formula: Arsenic, Calcium, Chlorine, Oxygen
     
 IMA Status: Approved 1983
     
Fluorescent Mineral Properties
 Shortwave UV light: Bright orange
 Mid wave UV light: Moderately bright orange
 Longwave UV light: Weak orange
     
 To find out more about this mineral at minDat's website, follow this link   Turneaureite

     
 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.653
The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 58, No. 1 - Spring 2017, pg. 20Fluorescent Minerals of Franklin and Sterling Hill, N.J., Part 2, Richard C. Bostwick - Turneaureite
View IssueV. 45, No. 1 - Spring 2004, pg. 14The 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 - Turneaureite
View IssueV. 33, No. 2 - Fall 1992, pg. 11The Check List of Franklin-Sterling Hill Fluorescent Minerals - Turneaureite (Fluorescent Info)
View IssueV. 26, Combined Issue 1985, pg. 12Mineral Notes Research Reports, Turneaureite
     
Images
     
Turneaureite, calcite, andradite, franklinite, Franklin MineTurneaureite, calcite, andradite, franklinite, Franklin Mine under shortwave UV Light
Turneaureite (beige), calcite (cream), andradite (brown) and franklinite (black) from Franklin Mine, Franklin, New Jersey. From the collection of Richard C. Bostwick and Tema Hecht, photo by Tema Hecht. 4" x 2 ¾" x 1 ¾" (10 x 7 x 4.3 cm)
Turneaureite, calcite, andradite and franklinite from Franklin Mine, Franklin, New Jersey under shortwave UV light. The turneaureite fluoresces orange and the calcite orange-red. From the collection of Richard C. Bostwick and Tema Hecht, photo by Tema Hecht. 4" x 2 ¾" x 1 ¾" (10 x 7 x 4.3 cm)

Turneaureite, calcite, andradite, and franklinite from Franklin, NJTurneaureite, calcite, andradite, and franklinite from Franklin, NJ under shortwave UV Light
Turneaureite (gray), calcite (beige), andradite (brown), and franklinite (black) from Franklin, NJ. 2 1/2" x 2 1/2". From the collection of Alex & Gary Kerstanski, photo by Alex Kerstanski.
Turneaureite, calcite, andradite, and franklinite from Franklin, NJ under shortwave UV light. The turneaureite fluoresces yellow-orange, calcite red-orange and the green is willemite dust, the andradite and franklinite are non-fluorescent. 2 1/2" x 2 1/2". From the collection of Alex & Gary Kerstanski, photo by Alex Kerstanski.

Turneaureite, calcite, andradite garnet, and franklinite from Franklin, NJTurneaureite, calcite, andradite garnet, and franklinite from Franklin, NJ under shortwave UV Light
Turneaureite (light gray), calcite (white), andradite garnet (brown), and franklinite (black) from Franklin, NJ. 1 7/8" x 1 1/2". From the collection of, and photo by WP.
Turneaureite, calcite, andradite garnet, and franklinite from Franklin, NJ under shortwave UV light. The turneaureite fluoresces yellow-orange, calcite red-orange, the andradite and franklinite are non-fluorescent. 1 7/8" x 1 1/2". From the collection of, and photo by WP.






All content including, but not limited to, mineral images, maps, graphics, and text on the Franklin-Ogdensburg Mineralogical Society, Inc. (FOMS) website is licensed under a
Creative Commons Attribution-NonCommercial 4.0 International License.
Creative Commons License