Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Tephroite from
Franklin Mine, Franklin, Sussex County, New Jersey, USA


09040210017272039799656.jpg
Tephroite

Franklin Mine, Franklin, Sussex County, New Jersey, USA
06603940017272030282914.jpg
Tephroite, etc.

Franklin Mine, Franklin, Sussex County, New Jersey, USA
04385580017272030294195.jpg
Tephroite, etc.

Franklin Mine, Franklin, Sussex County, New Jersey, USA
00046580017272030304067.jpg
Tephroite, etc.

Franklin Mine, Franklin, Sussex County, New Jersey, USA
09040210017272039799656.jpg
Tephroite

Franklin Mine, Franklin, Sussex County, New Jersey, USA
06603940017272030282914.jpg
Tephroite, etc.

Franklin Mine, Franklin, Sussex County, New Jersey, USA
04385580017272030294195.jpg
Tephroite, etc.

Franklin Mine, Franklin, Sussex County, New Jersey, USA
00046580017272030304067.jpg
Tephroite, etc.

Franklin Mine, Franklin, Sussex County, New Jersey, USA
09040210017272039799656.jpg
Tephroite

Franklin Mine, Franklin, Sussex County, New Jersey, USA
05161890017272030303335.jpg
Tephroite, etc.

Franklin Mine, Franklin, Sussex County, New Jersey, USA
04385580017272030294195.jpg
Tephroite, etc.

Franklin Mine, Franklin, Sussex County, New Jersey, USA
00046580017272030304067.jpg
Tephroite, etc.

Franklin Mine, Franklin, Sussex County, New Jersey, USA
Locality type:Mine
Classification
Species:Tephroite
Formula:Mn22+(SiO4)
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Common
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Willemite44
Zincite22
Franklinite18
Calcite14
Andradite11
Caryopilite9
Baryte7
Spessartine5
Hardystonite3
Rhodochrosite2
Hendricksite2
Diopside2
Clinohedrite2
Jacobsite1
Native Copper1
Esperite1
Pyrobelonite1
Data
Mineral Data:Click here to view Tephroite data
Locality Data:Click here to view Franklin Mine, Franklin, Sussex County, New Jersey, USA
Photo GalleryView Gallery (15 photos)
Data Identifiers
Mindat Occurrence Record ID:50006
Long-form Identifier:1:3:50006:9
GUID (UUID V4):0
Localities for Tephroite in this Region
Buckwheat dump mineral collecting site, Franklin Mine, Franklin, Sussex County, New Jersey, USA
Buckwheat pit, Franklin Mine, Franklin, Sussex County, New Jersey, USA
Mill site dump, Franklin Mine, Franklin, Sussex County, New Jersey, USA
Nearest other occurrences of Tephroite
0.1km (0.1 miles) ⓘBuckwheat pit, Franklin Mine, Franklin, Sussex County, New Jersey, USA
0.2km (0.1 miles) ⓘBuckwheat dump mineral collecting site, Franklin Mine, Franklin, Sussex County, New Jersey, USA
0.8km (0.5 miles) ⓘMill site dump, Franklin Mine, Franklin, Sussex County, New Jersey, USA
3.9km (2.4 miles) ⓘSterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA
4.0km (2.5 miles) ⓘPassaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA
References
Palache(1935):77
Hurlbut, C.S., Jr.: Am.Min.:46:549-559 (1961)
Dunn(1995):Pt3:336-342
 
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