David K. Joyce

Franklin, New Jersey, Various specimens

The Zinc mines at Franklin New Jersey are a unique geological environment and have produced hundreds of different minerals, including many new to science. Probably the most famous aspect of the minerals from Franklin are the fluorescent minerals. Fantastic! Here are some rare and rich examples!

All prices in Canadian dollars. For payment in US$, deduct 18% or multiply by 0.82.

Click on any of the following thumbnails to view a larger image of the specimen.

Willemite, Calcite, AndraditeFranklin, New Jersey, Various specimens
  • Item #17781
  • Willemite, Calcite, Andradite
  • 9.3x7.4x4.5 cm
  • Largest Crystal Size: n/a
  • $65.00
  • Franklin

  • New Jersey, USA
  • An interesting geological as well as mineralogical. This specimen appears to show concentric layers or rings of alteration or deposition around a core of, possibly, a pyroxene group mineral. The outermost layers are calcite and willemite that fluoresce well.
Willemite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #17767
  • Willemite, Franklinite
  • 6.1x5.7x2.4 cm
  • Largest Crystal Size: n/a
  • $75.00
  • Franklin

  • New Jersey, USA
  • Large, crystal sections of willemite fluoresce bright green and are associated with similarly sized franklinite crystals. Brilliant!
Willemite Franklin, New Jersey, Various specimens
  • Item #17770
  • Willemite
  • 7.5x5.0x3.5 cm
  • Largest Crystal Size: n/a
  • $75.00
  • Franklin

  • New Jersey, USA
  • Highly tenebrescent willemite covers the top of this specimen. Brilliant!
Willemite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #17778
  • Willemite, Franklinite
  • 5.7x5.2x4.0 cm
  • $45.00
  • Franklin

  • New Jersey, USA
  • Rich willemite is dispersed through, largely, thick, black franklinite and some other unidentified minerals. Nice colour!
Willemite, AndraditeFranklin, New Jersey, Various specimens
  • Item #17779
  • Willemite, Andradite
  • 8.1x3.7x4.7 cm
  • $75.00
  • Franklin

  • New Jersey, USA
  • Very tich, coarse willemite intermixed with resinous andradite garnet. Pretty cool!
Willemite, Calcite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #17761
  • Willemite, Calcite, Franklinite
  • 6.2x4.0x4.3 cm
  • Largest Crystal Size: n/a
  • $60.00
  • Franklin

  • New Jersey, USA
  • Deep green fluorescent willemite richly spread through red fluorescent franklinite and black franklinite.
Andradite, Calcite, WillemiteFranklin, New Jersey, Various specimens
  • Item #17773
  • Andradite, Calcite, Willemite
  • 8.4x6.7x3.3 cm
  • Largest Crystal Size: n/a
  • $65.00
  • Franklin

  • New Jersey, USA
  • Deep red calcite, a little bright green willemite fluoresce within a matrix of golden andradite.
WillemiteFranklin, New Jersey, Various specimens
  • Item #17686
  • Willemite
  • 7.8x7.0x5.3 cm
  • Largest Crystal Size: n/a
  • $85.00
  • Franklin

  • New Jersey, USA
  • This piece has a large glob of willemite on the front/top of it that glows a very strong fluorescent green under U/V light. Much of the matrix appears to be pinkish rhodonite or rhodochrosite. Spectacular old-time Franklin specimen.
Willemite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #20220
  • Willemite, Franklinite
  • 14.0x11.58.3 cm
  • Largest Crystal Size: n/a
  • $95.00
  • Franklin

  • New Jersey, USA
  • This large chunk of high-grade willemite and franklinite has a zone through the middle of it that looks like fine-grained feldspar and franklinite. Vey bright fluorescence that lingers after the U/V light source is turned off. Extra postage on this one!
Willemite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #20222
  • Willemite, Franklinite
  • 10.3x6.5x6.0 cm
  • Largest Crystal Size: n/a
  • $85.00
  • Franklin

  • New Jersey, USA
  • An extremely rich specimen of willemite and franklinite, from THE location for fluorescent willemite!
Willemite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #20225
  • Willemite, Franklinite
  • 11.6x8.0x6.8 cm
  • Largest Crystal Size: n/a
  • $75.00
  • Franklin

  • New Jersey, USA
  • A very cool specimen showing a matrix cut by a vein of willemite near the top of the specimen. As well, the lower part of the matrix is a mixture of franklinite and willemite. Extra postage required. Looks great in U/V light!
Willemite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #20226
  • Willemite, Franklinite
  • 13.5x8.3x8.0 cm
  • Largest Crystal Size: n/a
  • $120.00
  • Franklin

  • New Jersey, USA
  • A beautifully fluorescent specimen of willemite, associated with franklinite and some other non-fluorescent minerals. Much of the matrix is willemite but as well, there is a vein of willemite on the right side, embedded in neutral minerals that gives a more interesting look to the piece under U/V light. Extra postage required due to weight. Looks great!
CalciteFranklin, New Jersey, Various specimens
  • Item #20233
  • Calcite
  • 6.7x5.8x3.5 cm
  • Largest Crystal Size: n/a
  • $35.00
  • Franklin

  • New Jersey, USA
  • This fragment of calcite fluoresces a deep red colour (less pinky than in the picture). Beautiful!
Calcite, Franklinite, Willemite, AndraditeFranklin, New Jersey, Various specimens
  • Item #20227
  • Calcite, Franklinite, Willemite, Andradite
  • 12.3x10.0x4.5 cm
  • Largest Crystal Size: n/a
  • $55.00
  • Franklin

  • New Jersey, USA
  • This specimen is mostly rhodonite and franklinite with a little fluorescent calcite and willemite. Interesting mineralization!
Willemite, AndraditeFranklin, New Jersey, Various specimens
  • Item #20230
  • Willemite, Andradite
  • 7.0x6.0x5.5 cm
  • Largest Crystal Size: n/a
  • $55.00
  • Franklin

  • New Jersey, USA
  • This specimen is mostly massive willemite with a zone of brownish, resinous andradite on the back. Fluoresces a solid subdued green. Nice!
Esperite, Hardystonite, Willemite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #20235
  • Esperite, Hardystonite, Willemite, Franklinite
  • 13.0x8.4x6.0 cm
  • Largest Crystal Size: n/a
  • $140.00
  • Franklin

  • New Jersey, USA
  • Bright yellow esperite, fluorescent lime green willemite and purple hardystonite are the colourful fluorescent minerals in this specimen. Heavy and rich! Extra postage required. Looks great!
Esperite, Hardystonite, Willemite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #20236
  • Esperite, Hardystonite, Willemite, Franklinite
  • 8.2x7.3x7.5 cm
  • Largest Crystal Size: n/a
  • $140.00
  • Franklin

  • New Jersey, USA
  • There are several interesting and rare minerals in this specimen that fluoresce the following colours: Esperite is yellow-yellow green, willemite is bright lime green and the hardystonite is a purple colour. Heavy so extra postage required. Rich and great-looking!
Friedelite, Willemite, SerpentineFranklin, New Jersey, Various specimens
  • Item #20933
  • Friedelite, Willemite, Serpentine
  • 11.6x5.9x3.9 cm
  • Largest Crystal Size: n/a
  • $85.00
  • Sterling Hill Mine
  • Ogdensburg
    New Jersey, USA
  • Rare reddish friedelite intermixed with black franklinite and very dark brown willemite and associated with serpentine in this specimen. Old Franklin Mineral Museum label accompanies it.
Willemite, Zincite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #22385
  • Willemite, Zincite, Franklinite
  • 8.0x6.5x6.3 cm
  • Largest Crystal Size: n/a
  • $65.00
  • Franklin

  • New Jersey, USA
  • A rich specimen of, mostly zincite, franklinite and willemite along the bottom. Looks rich in white and U/V light.
Willemite, Calcite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #22518
  • Willemite, Calcite, Franklinite
  • 5.5x4.1x3.5 cm
  • Largest Crystal Size: n/a
  • $45.00
  • Franklin
    New Jersey, USA
  • A wonderful specimen of fluorescent green willemite, associated with calcite (Fl red) and black franklinite. V-nice!
Zincite, Franklinite, WillemiteFranklin, New Jersey, Various specimens
  • Item #26518
  • Zincite, Franklinite, Willemite
  • 4.0x3.5x3.1 cm
  • Largest Crystal Size: n/a
  • $35.00
  • Franklin

  • New Jersey, USA
  • A rich specimen of red zincite with black crystals of franklinite embedded in it plus a generous smattering of willemite. Very fluorescent green.