Strontianite, a strontium carbonate mineral of the aragonite group, was found among museum specimens mislabeled aragonite (Dunn, 1979c) and was verified using X-ray methods. Strontianite occurs as radiating clusters of acicular delicate bright-white crystals. No physical or chemical measurements have been made. It is unknown from Sterling Hill. The extant Franklin specimens consist of the strontianite clusters in vugs in low-grade franklinite-willemite-calcite-serpentine ore. (Dunn, 1995)

 Location Found: Franklin
 Year Discovered: 1790
 Formula: SrCO3
 Essential Elements: Carbon, Oxygen, Strontium
 All Elements in Formula: Carbon, Oxygen, Strontium
 IMA Status: Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Fluorescent Mineral Properties

 Shortwave UV light: Violet, rare
 To find out more about this mineral at minDat's website, follow this link   Strontianite

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.626

The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 58, No. 1 - Spring 2017, pg. 19Fluorescent Minerals of Franklin and Sterling Hill, N.J., Part 2, Richard C. Bostwick - Strontianite
View IssueV. 20, No. 2 - September 1979, pg. 7Contributions to the Mineralogy of Franklin and Sterling Hill New Jersey, Strontianite (small article)
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