David K. Joyce

Secondary Minerals, Various Locations, Page Two

Here are more interesting minerals from the oxidized zones!

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.

SmithsoniteSecondary Minerals, Various Locations, Page Two
  • Item #13313
  • Smithsonite
  • 10.5x7.5x4.4 cm
  • Largest Crystal Size: micro
  • $85.00
  • Laurion

  • Greece
  • An excellent specimen of light greenish, botryoidal smithsonite from one of the oldest and most famous mining areas of the world. Very nice!
Malachite, Cerussite, PyromorphiteSecondary Minerals, Various Locations, Page Two
  • Item #20095
  • Malachite, Cerussite, Pyromorphite
  • 7.5x7.1x3.5 cm
  • Largest Crystal Size: Ma 12mm
  • $85.00
  • Brown's Prospect
  • Rum Jungle
    Northern Territory, Australia
  • A plate of botryoidal malachite on pyromorphite garnished with small crystals of cerussite. Interesting paragenesis and a good looking piece! t
Azurite, MalachiteSecondary Minerals, Various Locations, Page Two
  • Item #21277
  • Azurite, Malachite
  • 14.5x12.3x5.7 cm
  • Largest Crystal Size: 5mm
  • $260.00
  • Liufengshan Mine
  • Anhui
    China
  • An amazing, great-looking example of copper mineralization! The matrix is, essentially, porous, botryoidal, dark-green malachite in which all of the cavities are lined with lustrous, blue, razor-sharp crystals of azurite. Partially sawn base. This is a large cabinet specimen that looks great. R
PyromorphiteSecondary Minerals, Various Locations, Page Two
  • Item #22155
  • Pyromorphite
  • 8.6x3.7x5.0 cm
  • Largest Crystal Size: 1mm
  • $55.00
  • Phoenixville

  • Pennsylvania, USA
  • The top of this silica-rich rock is covered with pyromorphite crystals, the classic colour of pyromorphite from this old mine. Very old, classic American mining location!
DescloiziteSecondary Minerals, Various Locations, Page Two
  • Item #22200
  • Descloizite
  • 9.3x7.2x6.0 cm
  • Largest Crystal Size: 9mm
  • $75.00
  • Berg Aukas
  • Grootfontein
    Namibia
  • Wow! A heavy cluster of descloizite crystals from the place that arguably produces the best. This cluster of terminated, deep brown crystals its very nicely for display.
HemimorphiteSecondary Minerals, Various Locations, Page Two
  • Item #22679
  • Hemimorphite
  • 3.5x3.7x2.5 cm
  • Largest Crystal Size: 3mm
  • $40.00
  • Wolftone Mine
  • Leadville
    Colorado, USA
  • Here is something we don't see very often! This piece has an open vug at the top that contains very sharp, thin-bladed, colourless, gemmy hemimorphite crystals. Nice and unusual!
Smithsonite, HydrozinciteSecondary Minerals, Various Locations, Page Two
  • Item #24420
  • Smithsonite, Hydrozincite
  • 11.0x8.1x4.5 cm
  • Largest Crystal Size: 1mm
  • $75.00
  • Colle Seriana
  • Bergamo
    Italy
  • A large vug in this massive smithsonite specimen is lined with botryoidal brownish smithsonite composed of tiny smithsonite crystals. The smithsonite formed on top of botryoidal white hydrozincite. The hydrozincite is fluorescent blue-white, as hydrozincite often is. Will need some extra postage. Old, classic locality!
Hemimorphite, CalciteSecondary Minerals, Various Locations, Page Two
  • Item #24484
  • Hemimorphite, Calcite
  • 8.1x6.2x3.4 cm
  • Largest Crystal Size: 7mm
  • $40.00
  • Ojuela Mine
  • Mapimi, Durango
    Mexico
  • Here is an attractive hemimorphite specimen! The front of the piece is an open vug with a "star" of hemimorphite on a pedestal of calcite crystals. The rest of the vug has calcite crystals scattered about on botryoidal iron oxides. The matrix is highly corroded, altered galena and each fragment of galena is covered with secondary lead minerals. Some interesting crystals under the microscope, perhaps mimetite or others. Interesting, good looking specimen!
DioptaseSecondary Minerals, Various Locations, Page Two
  • Item #24685
  • Dioptase
  • 7.6x4.9x3.0 cm
  • Largest Crystal Size: 2mm
  • $55.00
  • Mindouli

  • Congo
  • This specimen is practically covered with small,beautiful, sharp crystals of this unusual copper silicate mineral. Looks great! s
HemimorphiteSecondary Minerals, Various Locations, Page Two
  • Item #25204
  • Hemimorphite
  • 5.4x3.8x2.4 cm
  • Largest Crystal Size: 3mm
  • $40.00
  • Cleveland Mine
  • Stevens Co.
    Washington, USA
  • Now here is an unusual one from the NW. The top of this specimen is a meanderig vug that is lined with elongate, colourless hemimorphite crystals, some tinted with iron oxide. This is a mineral we are used to seeing from Mexico or Arizona, not Washington State!
HemimorphiteSecondary Minerals, Various Locations, Page Two
  • Item #26368
  • Hemimorphite
  • 5.0x4.0x2.7 cm
  • Largest Crystal Size: micro
  • $40.00
  • Paglio Pignolino Mine
  • Bergamo, Lombardy
    Italy
  • Here is an interesting and unusual specimen(for me!). A vug lined with colourless, sharp, hemimorphite crystals. I see no other minerals other than the hemimorphite. Nice!
AdamiteSecondary Minerals, Various Locations, Page Two
  • Item #26499
  • Adamite
  • 5.5x3.8x2.2 cm
  • Largest Crystal Size: micro
  • $40.00
  • Kamariza Mine
  • Lavrion, Atika
    Greece
  • Cavities in this gossan matrix have rounded clusters of very blue adamite. As well, there are small crystals of a greenish mineral, as well. Ancient, Interesting locality!
Erythrite, Conichalcite, CalciteSecondary Minerals, Various Locations, Page Two
  • Item #26538
  • Erythrite, Conichalcite, Calcite
  • 6.5x4.3x1.7 cm
  • $55.00
  • Cerro Minado Mine
  • Cuesta Alta, Almiera
    Spain
  • Here is an unusual location! This plate has many, pink, very sharp crystals of erythrite present here and there where the top of the plate is not totally covered by pure white calcite. As well,m there are smaller green balls of conichalcite scattered over the erythrite crystals. Interesting and unusual piece!
HydrozinciteSecondary Minerals, Various Locations, Page Two
  • Item #26579
  • Hydrozincite
  • 11.4x8.7x3.5 cm
  • Largest Crystal Size: n/a
  • $85.00
  • Colle Seriana
  • Bergamo
    Italy
  • Here is an unusual one! This is a very rich specimen of hydrozincite that, in places is botryoidal, where open spaces exist and massive in others. Where there are open spaces, there are tiny, colourless, prismatic crystals on the botryoidal hydrozincite, perhaps hemimorphite. The hydrozincite fluoresces a bright blue-white colour, perhaps not quite as turquoise as in the picture but an intense blue-white that is characteristic of hydrozincite. Displays well!
MalachiteSecondary Minerals, Various Locations, Page Two
  • Item #26813
  • Malachite
  • 7.8x6.7x1.7 cm
  • Largest Crystal Size: 1mm
  • $55.00
  • Lubumbashi
  • Haut Katanga
    Democratic Republic of Congo
  • A beautiful, deep green, botryoidal plate of malackite. The inner malachite is the attractive banded, fine grained type but the last phase of the malachite deposition was sparkling, small, blocky crystals. Attractive piece from one of the localities that produces the best!
Malachite, QuartzSecondary Minerals, Various Locations, Page Two
  • Item #26850
  • Malachite, Quartz
  • 7.3x7.7x4.7 cm
  • Largest Crystal Size: 3mm
  • $55.00

  • New Mexico, USA
  • This vuggy quartz matrix is full of quartz lined vugs that are, in turn, full of acicular, deep green malachite needles. Gorgeous crystallization!
Linarite, GypsumSecondary Minerals, Various Locations, Page Two
  • Item #28199
  • Linarite, Gypsum
  • 9.5x6.8x6.4 cm
  • Largest Crystal Size: 1mm
  • $85.00
  • Blanchard Mine
  • Socorro County
    New Mexico, USA
  • The cavities across the top and front of this quartz-fluorite matrix are largely lined with deep blue linaraite crystals and colourless gypsum. The linarite is the main mineral of interest and is composed of sharp prismatic to skeletal blue crystals. The gypsum crystals are poorly formed but gemmy crystals. The matrix is also interesting showing different colours of fluorite and containing partially altered crystals of galena. Interesting and beautiful!
Malachite, ps azuriteSecondary Minerals, Various Locations, Page Two
  • Item #28196
  • Malachite, ps azurite
  • 7.5x5.0x5.5 cm
  • Largest Crystal Size: 10mm
  • $120.00
  • Whim Creek
  • W. Australia
    Australia
  • The cavity on the top of this brecciated matrix is lined with sharp, thick-bladed malachite pseudomorphs after azurite. As well, clusters of deeper green malachite are scattered over the pseudomorphs. Nice specimen from an unusual locality, in this part of the world!
Linarite, Fluorite, GypsumSecondary Minerals, Various Locations, Page Two
  • Item #28201
  • Linarite, Fluorite, Gypsum
  • 6.3x4.4x2.0 cm
  • Largest Crystal Size: 1mm
  • $65.00
  • Blanchard Mine
  • Socorro County
    New Mexico, USA
  • The top of this specimen is mostly part of a vug that is lined by fluorite crystals that have, in turn, been partially or totally covered by bright, deep-blue, linarite crystals and white skeletal gypsum crystals. The linarite crystals actually coat the fluorite crystals nicely in some parts of the opening. Interesting and beautiful!
Linarite, Baryte, QuartzSecondary Minerals, Various Locations, Page Two
  • Item #28203
  • Linarite, Baryte, Quartz
  • 4.3x3.0x2.1 cm
  • Largest Crystal Size: b-21mm, l-1mm
  • $65.00
  • Mex-Tex Mine
  • Garden Spring Canyon, Socorro Co.
    New Mexico, USA
  • This is a nice specimen from one of the lesser known localities in Socorro Co. The matrix is totally composed of baryte, with a larger, complete, rectangular, bladed baryte crystal at the back. at the base of the quartz crystal-encrusted baryte crystal is a patch of sparkling, blue linarite crystals. Nice looking, excellent specimen!
Linarite, MalachiteSecondary Minerals, Various Locations, Page Two
  • Item #28205
  • Linarite, Malachite
  • 6.7x6.6x3.4 cm
  • Largest Crystal Size: l-1mm
  • $85.00
  • Blanchard Mine
  • Socorro County
    New Mexico, USA
  • The top of this fluorite matrix is mostly covered with openings lined with small, sparkling crystals of deep-blue linarite, with some small tufts of malachite crystals here and there. This is a very striking specimen from this classic linarite locality!
BrochantiteSecondary Minerals, Various Locations, Page Two
  • Item #29150
  • Brochantite
  • 6.5x5.5x2.5 cm
  • Largest Crystal Size: n/a
  • $80.00
  • Paoli Deposit
  • Red Bed Dist.
    Oklahoma, USA
  • Translucent emerald green nodules made up of small semi-spherical masses of brochantite crystals on a limonite matrix. Very interesting under magnification. This is a rare secondary-copper species for this location, and unlike brochantite from other locations! See the article in the Mineralogical Record Vol. 17, No. 6, pgs 371-374.