Fluorescent Minerals For Sale:  Page 1

Franklin & Sterling Hill


Important:  Fluorescent minerals require a special ultraviolet lamp to view them (normally, a short-wave UV lamp).  It's worth it to get a good lamp.

The color response of your computer's monitor may not be the best representation of the photographs. The colors shown in the photos, at least as they appear on our office monitor, are the most accurate representations we were able to capture with the limitations of the camera.

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Calcite & Dolomite ("Crazy Calcite") - Sterling Hill, Ogdensburg, NJ (#F603)






"Crazy Calcite" - Sterling Hill, Ogdensburg, NJ.  
Many examples of this assemblage have either one or the other species in greater abundance. This one has good distribution of the calcite and dolomite.

Calcite: FL bright red-orange SW

Dolomite: FL violet SW

Specimen size approx. 3" x 2 7/8" x 2 1/4"

Weight approx. 3/4 lb.

F603 ... $22.00





Fluorapatite or Prehnite (?) with Willemite - Franklin, NJ (#F602)






Fluorapatite or Prehnite (?) with & Willemite - Franklin, NJ.  
Fluorapatite or Prehnite:  FL pale orange-peach SW. 
Willemite:  FL green SW

While this may be fluorapatite, prehnite from Franklin sometimes has this coloration in SW UV.  Which is it?  You decide.  The mineral has a whitish-gray appearance in daylight, without any hint of the bluish-green that would be typical for fluorapatite from this locality.  The back and sides are weathered, and the piece may have a couple of incipient cracks.  However, it appears to be mechanically stable as long as it's handled normally.

NF matrix is largely andradite garnet.

Specimen size approx. 2 3/4" x 2 3/8" x 1"

Weight approx. 11+ ounces

F602 ... $35.00





Microcline & Calcite - Franklin, NJ (#F605)






Microcline & Calcite - Franklin, NJ.  
The microcline FL a pale bluish-gray in SW; calcite FL red-orange.

Specimen size approx. 3 1/2" x 2 3/8" x 2 3/4"

Weight approx. 1 lb 10 oz.

F605 ... $30.00





Willemite In Calcite - Franklin, NJ (#F604)






Willemite & Calcite - Franklin, NJ.  
The willemite consists of semi-translucent crystalline grains in a matrix of "sugary" calcite.  This is a pattern piece, showing a sort of ribbon or swath of FL-green willemite grains in a matrix of FL-red calcite.

Specimen size approx. 3 1/2" x 1 5/8" x 2"

Weight approx. 3/4 lb.

F604 ... $22.00





Willemite & Calcite - Franklin, NJ.  




Willemite & Calcite - Franklin, NJ.  
Willemite is dull reddish-tan in daylight (var. "troostite"). Calcite is the coarsely "sugary" variety resembling rock candy crystals (specimen is not edible; exercise due caution with heavy rocks).

Pale tan mineral (NF) bears superficial resemblance to ganophyllite or some other mineral from that group.  Without knowing exactly what it is, we'll just call it "altered willemite".

Specimen size approx. 3 1/4" x 2 1/2" x 2".

Weight approx. 1 lb 5 oz.

F606 ... $24.00




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Fluorescent minerals require a special lamp to view the colors you see in the photos.  Most of the specimens shown above react to short-wave ultraviolet (SW UV or "UV-C"), which has a wavelength of 254 nanometers.




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