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Fluorescent Minerals For Sale:  Page 2

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.
Unless otherwise noted, multiple photos are different views of the same specimen.


Hardystonite & Calcite with andradite - Franklin, New Jersey.   Deep-blue-violet FL hardystonite with red-orange FL calcite. 

Size approx. 3 1/2" x 2" x 2 1/2"
Ship. wt. 1.6 lbs.

#F577 ... $49.00


Hydrozincite & Calcite - Sterling Hill, Ogdensburg, NJ.

A coating of hydrozincite (fl. blue SW) on a rock composed of calcite (fl. red SW), franklinite (NF) and zincite (NF).   The franklinite grains are rounded, making this kind of matrix somewhat friable.  However, specimen should remain intact if handled with reasonable care.

Size approx. 3" x 2" x 1 1/2"
Ship. wt. 1.7 lbs

#F578 ... $26.00

Norbergite & Diopside - Ogdensburg, NJ.  FL yellow SW (norbergite) and blue-white SW (diopside).  The calcite has a very faint hint of FL response (reddish, SW).

Size:  display face approx. 3 1/4 x 1 7/8 inches (max. dimension).

#F535 ... $18.00  Sale $14.00

click for larger image   Click for larger

Sphalerite & Calcite - Franklin, NJ.  Sphalerite var. "Cleiophane" (fl orange and blue SW / MW / LW / PH).  The sphalerite forms a vein or band in the calcite and has a gray to silvery-gray appearance in daylight.  

Size:  approx. 3 1/4" x 1 3/4" x 1 1/4".
Ship wt. 1 lb.

#F552 ... $28.00


Sphalerite & Willemite - Sterling Hill, Ogdensburg, NJ.  This is the variety known as "mahogany sphalerite", FL moderate orange in SW and LW (didn't test it in MW, but probably good).   

The other side of the piece has a ribbon of sphalerite in willemite that displays better in LW (click here for LW photo).

Brightness:  ++ (sphalerite) / +++ (willemite)
Size:  about 3 1/2" x 1 3/4" x 1 1/8"
Ship. wt. 1 lb.

#F532 ... $25.00  Sale $19.00


Willemite with Calcite in Rhodonite - Franklin, NJ.

The rhodonite (NF) is pinkish-gray in daylight and has willemite interspersed throughout.  The willemite is visible in SW UV as green fl.

Overall it bears some resemblance to "fluorescent concrete", but this is a natural rock. 

Size:  about 2 1/4" x 2 1/2", thickness 1 3/8" tapering down to 1/8" (wedge-shaped cross section)

Ship wt. 0.7 lb

#F571 ... $18.00

Willemite & Calcite - Franklin, NJ

Larger specimen of willemite (fl. green SW) and calcite (fl. red-orange sw) with franklinite (nf).  Bright fluorescence;  thorough coverage.

Size:  about 5 3/8" x 3 1/2", thickness 2" tapering down to ~1/4" thick at narrowest portion.

Ship. wt. 3.2 lbs

#F569 ... SOLD

Willemite & Calcite - Franklin, NJ

Spots of semi-translucent willemite in calcite.  Intense fl in SW UV.  This variety of willemite is also green in daylight, due to some fluorescence caused by the light of the sun.

Size:  3 1/2" x 2 3/4", thickness about 1" on average

Ship. wt. 1.2 lbs.

#F570 ... SOLD

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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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Related Items

Page 1 - Franklin / Sterling Hill Fluorescents

Page 3 - F/ SH Fluorescents

Page 4 - Various Localities

Page 5 - F/SH Fluorescents  NEW!

Fluorescent Cabochons

Fluorescent Sets

Minerals A-L (daylight)

Minerals M-Z (daylight)

FL = "fluorescent", "fluoresces", "fluorescence";

LW= "Long-Wave" (ca. 320 to 370 nm);

MW = "Mid-Wave" (ca. 302 to 312 nm);

NF = "Non-Fluorescent"

PH= "Phosphorescent" ( i.e., temporary glow after UV source is removed);

SW= "Short-Wave" (254 nm);

UV= "Ultra-Violet".

Brightness Grades:

+  Weak
(Scapolite, Hyalophane, some Fluorapatite).
Requires a powerful UV lamp and well-adjusted eyes in a darkened room.  Don't ignore this category; some of the nicest color combinations are here.

++  Moderate
(Fluorapatite, Hardystonite, sometimes Microcline).  
Many fl. species fall into this category.

(Willemite, Scheelite).  
The fluorescence has an almost electric quality when illuminated with UV.

Brightness Grades are somewhat subjective, but willemite and scheelite are almost always Grade 3 ("+++").