David K. Joyce

Arizona -Iron Cap Mine, Aravaipa, Graham County

This mine was a small polymetallic producer that operated off and on between 1908 and 1963. There are a couple of shafts that produced modest amounts of Zn-Pb-Cu-Ag-Au-Fluorspar ores. At the workings that I visited, it was all Zn-Pb mineralization! I didn't see a trace of copper or fluorite in the materials that I examined! The mine is remote, at an elevation 0t 5500 feet or so north of Wilcox, AZ.
Please not that the Axinite-(Mn) is a bit greener, in the pictures, than I would like. It is actually a bit more yellow in real life.
This locality is famous for manganese-rich phases of various minerals, particularly the relatively rare axinite-(Mn), johansennsenite and manganbabingtonite.

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.

Sphalerite, Axinite-(Mn)Arizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28706
  • Sphalerite, Axinite-(Mn)
  • 1.7x1.5x1.3 cm
  • Largest Crystal Size: 10mm
  • $40.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • A sharp, well-formed, green, possibly gemmy crystal of sphalerite with small axinite crystals on the matrix around the base. I say possibly gemmy, since the crystal is frosted but appears to easily transmit light internally. Nice crystal, albeit small, from a mine that is well known for such crystals!
JohannseniteArizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28707
  • Johannsenite
  • 7.2x6.7x5.2 cm
  • Largest Crystal Size: 3mm
  • $40.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • This cavity is lined with very long, 10mm or so, johannsenite crystals but only 2-3mm or so protrude into the cavity. Johannsenite is a manganese rich, relatively rare member of the amphibole group.
Quartz, Aragonite, JohannseniteArizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28708
  • Quartz, Aragonite, Johannsenite
  • 6.8x6.5x5.4 cm
  • Largest Crystal Size: a-1, q-3mm, j-2mm
  • $40.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • This one is a little different in that it is a johannsenite-lined vug, studded with clear, sharp, stocky quartz crystals plus there are clusters of aragonite concentrated and clustered here and there. Nice crystals!
Johannsenite, Axinite-(Mn), QuartzArizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28709
  • Johannsenite, Axinite-(Mn), Quartz
  • 11.4x10.0x7.0 cm
  • Largest Crystal Size: 4mm
  • $75.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • A cabinet-sized specimen that is covered with johannsenite crystals and then speckled with greeny-yellow axinite crystals up to 3mm or so, with a few white quartz crystals scattered around. Impressive johannsenite specimen!
Johannsenite, Axinite-(Mn), QuartzArizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28710
  • Johannsenite, Axinite-(Mn), Quartz
  • 6.0x4.3x3.5 cm
  • Largest Crystal Size: 2mm
  • $45.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • The vug on the front of this miniature specimen is lined with light green, sharp, radiating johannsenite crystals, associated with some razor-sharp axinite crystals and milky white quartz prisms. Very photogenic under the microscope!
Sphalerite, JohannseniteArizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28711
  • Sphalerite, Johannsenite
  • 4.8x3.8x6.0 cm
  • Largest Crystal Size: sp-8mm, j-2mm
  • $65.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • A good reference specimen showing some very nice, light green sphalerite crystals plus stubby, square cross-sectioned johannsenite.
Quartz, Johannsenite, GypsumArizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28712
  • Quartz, Johannsenite, Gypsum
  • 6.3x5.5x4.4 cm
  • Largest Crystal Size: 33mm
  • $75.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • Quartz is the feature of this specimen and there are several interesting crystals protruding upwards away from the matrix. The crystals are a kind of stepped form showing terminal faces and prism faces alternating to form an odd but nice habit. It appears that the crystal kept wanting to form a scepter but could not muster the energy! There are also johannsenite crystals poking out here and there and some of the specimen is encrusted with white gypsum. Displays handsomely!
Johannsenite, QuartzArizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28713
  • Johannsenite, Quartz
  • 10.8x6.4x5.0 cm
  • Largest Crystal Size: 3mm
  • $45.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • This small cabinet specimen features radiating an opening lined with radiating johannsenite crystals. The johannsenite crystals are actually about 10mm long but are tightly packed radiating groups that have only a couple of mm protruding into the opening. Displays well!
Axinite-(Mn), Johannsenite, GypsumArizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28714
  • Axinite-(Mn), Johannsenite, Gypsum
  • 5.4x5.2x3.2 cm
  • Largest Crystal Size: ax-2mm
  • $35.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • The top of this specimen has a cavity with a couple of yellowish axinite-(Mn) crystals in it. One is 2mm or so and is very sharp and photogenic. You can do a better job than I did!!
Johannsenite, Axinite-(Mn)Arizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28716
  • Johannsenite, Axinite-(Mn)
  • 6.7x3.4x1.8 cm
  • Largest Crystal Size: j-3mm, ax-2mm
  • $45.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • The top-front of this matrix is totally covered with sharp, acicular, prismatic greenish johannsenite crystals that have razor-sharp, gemmy, yellowish axinite crystals suspended in and on the johannsenite. Nice example!
Quartz, JohannseniteArizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28717
  • Quartz, Johannsenite
  • 8.5x7.3x3.9 cm
  • Largest Crystal Size: 18mm
  • $75.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • This wide vug is full of white, tapering, prismatic quartz crystals that overlay greenish, acicular johannsenite, which pokes out here and there and is visible around the edges. Great looking piece!!
Johannsenite, Axinite-(Mn), QuartzArizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28718
  • Johannsenite, Axinite-(Mn), Quartz
  • 5.8x3.7x1.6 cm
  • Largest Crystal Size: 4mm
  • $40.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • A nice plate of light greenish johannsenite crystals in radiating aggregates. At one end of the plate is a cluster of sharp, yellow axinite-(Mn) crystals. Nice specimen of these two relatively rare minerals.
Johannsenite, Axinite-(Mn), QuartzArizona -Iron Cap Mine, Aravaipa, Graham County
  • Item #28719
  • Johannsenite, Axinite-(Mn), Quartz
  • 9.7x6.0x5.4 cm
  • Largest Crystal Size: 2mm
  • $85.00
  • Iron Cap Mine
  • Aravaipa, Graham County
    Arizona, USA
  • The entire lining of the opening in this piece is lined with tiny, sparkling, light greenish johannsenite crystals. There are yellow, gemmy axinite-(Mn) crystals scattered all over the johannsenites. Looks WAY better than the pictures show. Displays very well and is an excellent specimen of these two unusual minerals.