BIANCHITE



Bianchite, a zinc sulfate hydrate mineral, was first reported from Sterling Hill by Hendricks (1960), and another Sterling Hill occurrence was reported by Cook (1973). Subsequent reexamination of Cook's material by [Dunn] found it to be hexahydrite. An occurrence below the 700 level at Sterling Hill was described by Jenkins and Misiur (1994) as 2 mm "jackstraw aggregates of 20-30 micron needles or thin blades," yellow-white, and occurring on secondary calcite or on sulfides; it is likely a post-mining mineral. Bianchite has not been reported from Franklin. (Dunn, 1995)

 Location Found: Ogdensburg
     
 
 Year Discovered: 1930
     
 Formula: (Zn,Fe)SO4 · 6H2O
 Essential Elements: Hydrogen, Oxygen, Sulfur, Zinc
 All Elements in Formula: Hydrogen, Iron, Oxygen, Sulfur, Zinc
     
 IMA Status: Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
     
Fluorescent Mineral Properties
 Shortwave UV light: Blue-white
 Mid wave UV light: Weak blue-white
 Longwave UV light: Weak blue-white
 Additional Information: Weak blue-white phosphorescence under shortwave, weaker under other wavelengths
     
 To find out more about this mineral at minDat's website, follow this link   Bianchite

     
 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.630

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.45
The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 57, No. 2 - Fall 2016, pg. 13Fluorescent Minerals of Franklin and Sterling Hill, N.J., Part 1, Richard C. Bostwick - Bianchite
View IssueV. 35, No. 2 - Fall 1994, pg. 18A Complex Base-Metal Assemblage From the Sterling Mine New Jersey - Bianchite
View IssueV. 12, No. 2 - August 1971, pg. 7New Minerals for Franklin-Sterling Validated List - Bianchite (small article)
     
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