David K. Joyce Minerals

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 16% or multiply by 0.84.

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.
WillemiteFranklin, New Jersey, Various specimens
  • Item #17787
  • Willemite
  • 12.1x9.2x6.4 cm
  • Largest Crystal Size: n/a
  • $120.00
  • Franklin

  • New Jersey, Canada
  • A very large piece of high-grade willemite with a little franklinite and veins of an unidentified white mineral. Looks amazing!!
WillemiteFranklin, New Jersey, Various specimens
  • Item #17768
  • Willemite
  • 5.3x4.1x2.5 cm
  • Largest Crystal Size: n/a
  • $40.00
  • Franklin

  • New Jersey, USA
  • Bright green fluorescent willemite makes for an excellent example of this zinc ore from the famous mine at Franklin, New Jersey.
Zincite, WillemiteFranklin, New Jersey, Various specimens
  • Item #17789
  • Zincite, Willemite
  • 8.6x4.1x1.5 cm
  • Largest Crystal Size: n/a
  • $75.00
  • Franklin

  • New Jersey, USA
  • I thought that this piece was a solid orangey zincite but the closer that I look, it appears to be mostly zincite with a fine grain mist of willemite throughout it's volume. I have learned that Franklin old-timers called this varietal combination "Sussexite" or calcio-zincite. Interesting and different!
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, FrankliniteFranklin, New Jersey, Various specimens
  • Item #17765
  • Willemite, Franklinite
  • 4.3x4.1x3.5 cm
  • Largest Crystal Size: 34mm
  • $75.00
  • Franklin

  • New Jersey, USA
  • A large, rather malformed willemite crystal with rounded franklinite crystals attached to it. Fluoresces a nice green colour!
Willemite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #17763
  • Willemite, Franklinite
  • 5.8x3.7x2.2 cm
  • Largest Crystal Size: n/a
  • $35.00
  • Franklin

  • New Jersey, USA
  • This specimen is mostly black franklinite wit ha little willemite that fluoresces bright green. The carbonate between the franklinite crystals fluoresces an orange colour but under long-wave U/V light only.
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.
Calcite, Andradite, Willemite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #17782
  • Calcite, Andradite, Willemite, Franklinite
  • 8.7x7.2x6.5 cm
  • Largest Crystal Size: n/a
  • $60.00
  • Franklin

  • New Jersey, USA
  • This is interesting. The mixture of andradite and calcite provides the red fluorescence in this specimen. Probably just the calcite but there is a lot of garnet there! A little willemite, as well.
Zincite, Willemite, Calcite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #17762
  • Zincite, Willemite, Calcite, Franklinite
  • 9.9x5.1x2.7 cm
  • Largest Crystal Size: n/a
  • $85.00
  • Franklin

  • New Jersey, Canada
  • Rich, deep red zincite intermixed with willemite and franklinite. Excellent fluorescence. The specimen has a partial white coating that appears like hydrozincite and fluoresces a light blue-white. Not sure though. Interesting and brightly fluorescent specimen!
Calcite, Willemite, RhodoniteFranklin, New Jersey, Various specimens
  • Item #17774
  • Calcite, Willemite, Rhodonite
  • 8.2x5.0x3.8 cm
  • Largest Crystal Size: n/a
  • $40.00
  • Franklin

  • New Jersey, USA
  • A band of white calcite fluoresces bright red at the juncture of two pink rhodonite crystal sections. A little willemite associated. Looks great under U/V!
Willemite, Calcite, FrankliniteFranklin, New Jersey, Various specimens
  • Item #17758
  • Willemite, Calcite, Franklinite
  • 5.3x3.6x3.5 cm
  • $60.00
  • Franklin

  • New Jersey, USA
  • Classic, bright green fluorescent willemite embedded in deep red fluorescent calcite, along with crystals of the ubiquitous franklinite.