David K. Joyce

Arizona -Big Bertha Mine, Quartzite, La Paz County,

The Big Bertha mine, near Quartzite is a large body of pure white quartz that has cavities of quartz crystals and, more importantly, razor-sharp hematite crystals. As well, embedded in a micaceous phase are sharp crystals of zunyite. Here are some nice examples of mineral crystals from this location.

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.

Hematite, QuartzArizona -Big Bertha Mine, Quartzite, La Paz County,
  • Item #29775
  • Hematite, Quartz
  • 6.0x4.8x3.8 cm
  • Largest Crystal Size: 8mm
  • $35.00
  • Big Bertha Mine
  • Quartzite, La Paz Co.
    Arizona, USA
  • An 8mm, razor sharp, hematite crystal is protected in a quartz crystal cavity along with a few smaller ones. The crystal does have a crack in it but is not noticeable and is nicely all held in place.
    DKDD
Hematite, QuartzArizona -Big Bertha Mine, Quartzite, La Paz County,
  • Item #29779
  • Hematite, Quartz
  • 6.5x5.0x5.0 cm
  • Largest Crystal Size: 9mm
  • $45.00
  • Big Bertha Mine
  • Quartzite, La Paz Co.
    Arizona, USA
  • This fragment of massive, vuggy quartz shows a razor-sharp, textbook hematite crystal in a vug at the front. The crystal is very lustrous with sharp pinacoid, rhomb and small prism faces. Super example of hematite from anywhere!!
    DKDD
ZunyiteArizona -Big Bertha Mine, Quartzite, La Paz County,
  • Item #29780
  • Zunyite
  • 8.0x6.7x6.0 cm
  • Largest Crystal Size: 2.5mm
  • $65.00
  • Big Bertha Mine
  • Quartzite, La Paz Co.
    Arizona, USA
  • The top of this quartz matrix has a sugary-micaceous phase on it that contains nicely contrasting, beige, zunyite crystals. Nice sample of this rare silicate mineral from this interesting locality!
    DKDD
ZunyiteArizona -Big Bertha Mine, Quartzite, La Paz County,
  • Item #29766
  • Zunyite
  • 6.55.5x5.0 cm
  • Largest Crystal Size: 1.5mm
  • $45.00
  • Big Bertha Mine
  • Quartzite, La Paz Co.
    Arizona, USA
  • A micaceous phase that runs along one side of this quartz matrix is loaded with sharp octahedral crystals of zunyite. Clear to beigey -coloured and very sharp! A rare silicate mineral!
    DKDD
ZunyiteArizona -Big Bertha Mine, Quartzite, La Paz County,
  • Item #29771
  • Zunyite
  • 4.3x4.1x2.5 cm
  • Largest Crystal Size: 1mm
  • $40.00
  • Big Bertha Mine
  • Quartzite, La Paz Co.
    Arizona, USA
  • Oodles of mm sized, sharp, flattened octahedra of zunyite are present on one side of this quartz matrix. The zunyite crystals are embedded in a micaceous phase in the specimen, not the quartz.
    DKDD
ZunyiteArizona -Big Bertha Mine, Quartzite, La Paz County,
  • Item #29772
  • Zunyite
  • 4,8x3.8x2.3 cm
  • Largest Crystal Size: 1mm
  • $40.00
  • Big Bertha Mine
  • Quartzite, La Paz Co.
    Arizona, USA
  • The front of this quartz matrix is a micaceous phase that is loaded with small, very sharp crystals of zunyite. The crystals range from colourless to light beige in colour.
    DKDD