David K. Joyce Minerals

Latest Additions

Below are the most recent additions to my specimens database. Click on any of the thumbnails to view a larger image of the specimen.

All prices in Canadian dollars. For payment in US$, deduct 22% or multiply by 0.78.

 

Wulfenite, Calcite, MimetiteMexico, Various Minerals and Localities
  • Item #18711
  • Wulfenite, Calcite, Mimetite
  • 12.1x6.3x7.5 cm
  • Largest Crystal Size: 20mm
  • $350.00
  • Ojuela Mine, Level 7, Campana Vein
  • Mapimi, Durango
    Mexico
  • This specimen is a calcite-lined cavity that has a wonderful nest of orangey, thick-tabular wulfenite crystals nestled in it. The bottom of the specimen is a mass of greenish-yellow mimetite crystals in limonite cavities. This is an old timer that displays beautifully! Stunning!
Gypsum, var. SeleniteMexico, Various Minerals and Localities
  • Item #18709
  • Gypsum, var. Selenite
  • 14.1x9.5x4.1 cm
  • Largest Crystal Size: 23mm
  • $110.00
  • Los Lamentos Mine
  • Chihuahua
    Mexico
  • A plate of curly-cue crystals of gypsum. An excellent example of this habit of gypsum!
Gypsum, var. SeleniteMexico, Various Minerals and Localities
  • Item #18708
  • Gypsum, var. Selenite
  • 13.6x6.2x2.5 cm
  • Largest Crystal Size: as above
  • $110.00
  • Chihuahua

  • Mexico
  • An excellent example of "rams horn" gypsum. This is one crystals that, in the unique way of gypsum, seems to have been extruded into a curly-cue. A real classic!
Gold, SericiteGold, Canadian Localities
  • Item #18704
  • Gold, Sericite
  • 12.5x4.7x4.4 cm
  • Largest Crystal Size: n/a
  • $7,575.00
  • Hard Rock Mine
  • Geraldton
    Ontario, Canada
  • A specimen like this doesn't come around very often! Density test has revealed that this specimen has slightly over three troy ounces of gold! The Geraldton area was home to several underground hard rock mines and this was one of them. Rich high-grade!!
Gold, BerthieriteGold, Red Lake Mine, Balmertown, Ontario
  • Item #18701
  • Gold, Berthierite
  • 5.7x4.9x4.5 cm
  • Largest Crystal Size: n/a
  • $450.00
  • Red Lake Mine
  • Balmertown
    Ontario, Canada
  • This specimen shows rthe top, largely composed of berthierite and stibnite with very rich, deep golden gold sticking out of the berthierite. Very rich, interesting mineralogical association! Shows well.
GoldGoldcorp Inc. -Musselwhite Mine Gold Specimens
  • Item #18698
  • Gold
  • 7.3x3.8x3.4 cm
  • Largest Crystal Size: n/a
  • $1,450.00
  • Musselwhite Mine
  • Opapamiskan Lake
    Ontario, Canada
  • Deep yellow, rich gold sticks out of this quartz matrix in rigid prongs. Very high grade. About 0.75 troy ounce. Shows well!
GoldGold, Olinghouse Mine, Washoe Co., Nevada
  • Item #18696
  • Gold
  • 10.7x7.0x7.5 cm
  • Largest Crystal Size: 1.5mm
  • $1,100.00
  • Olinghouse Mine
  • Washoe Co.
    Nevada, Canada
  • This beautiful specimen from the Olinghouse mine shows an exposed vein of gold that has had the calcite etched away to reveal sparkling, interlocking gold crystals. The crystals are a combination of spiky, dendritic crystals and flattened, presumably, spinel-law twinned crystals. Gorgeous!! Displays very well from a couple of directions.
MarcasiteSouth Ontario Limestone Quarries, Various Minerals
  • Item #18692
  • Marcasite
  • 6.8x4.5x3.5 cm
  • Largest Crystal Size: 5mm
  • $35.00
  • Flamboro Quarry
  • Wentworth County
    Ontario, Canada
  • Lots of sharp marcasite crystals on this dolostone matrix. Some are bruised. Good locality piece that stands well for display.
MarcasiteSouth Ontario Limestone Quarries, Various Minerals
  • Item #18691
  • Marcasite
  • 8.8x6.2x4.5 cm
  • Largest Crystal Size: 2mm
  • $35.00
  • Flamboro Quarry
  • Wentworth County
    Ontario, Canada
  • A great-looking, concave plate of marcasite crystals on crystallized dolostone matrix. The marcasite crystals are sharp with a slightly greenish-golden iridescence. A few small calcite and fluorite crystals here and there on the piece. Displays perfectly.
CelestineSouth Ontario Limestone Quarries, Celestine
  • Item #18689
  • Celestine
  • 5.8x3.3x3.5 cm
  • Largest Crystal Size: 45mm
  • $65.00
  • Lafarge Quarry
  • Wentworth County
    Ontario, Canada
  • A cluster of grayish, lustrous celestine crystals partly intergrown with tiny dolomite crystals. The celestines are all sharp crystals that have been broken and naturally re-healed.
18687South Ontario Limestone Quarries, Sphalerite, Page Two
  • Item #18687
  • 18687
  • 7.4x5.3x2.9 cm
  • Largest Crystal Size: 5mm
  • $90.00
  • Flamboro Quarry
  • Wentworth County
    Ontario, Canada
  • An excellent plate of complex, burnt-orange sphalerite crystals on dolostone matrix. The sphalerite crystals are multiply twinned and are also sprinkled with tiny marcasite crystals. Displays very well!
Sphalerite, MarcasiteSouth Ontario Limestone Quarries, Sphalerite, Page Two
  • Item #18686
  • Sphalerite, Marcasite
  • 7.2x7.0x5.4 cm
  • Largest Crystal Size: sp-38mm, m-5mm
  • $60.00
  • Lafarge Quarry
  • Wentworth County
    Ontario, Canada
  • This fossiliferous dolostone matrix sports a large complex, brown sphalerite crystal and a single cluster of brassy marcasite crystals.
MarcasiteSouth Ontario Limestone Quarries, Various Minerals
  • Item #18685
  • Marcasite
  • 5.8x5.5x3.0 cm
  • Largest Crystal Size: 3mm
  • $35.00
  • Flamboro Quarry
  • Wentworth County
    Ontario, Canada
  • As marcasite specimens go, this one is modest but the crystals are great and it is a nice locality specimen!
SphaleriteSouth Ontario Limestone Quarries, Sphalerite, Page Two
  • Item #18684
  • Sphalerite
  • 3.8x3.1x2.5 cm
  • Largest Crystal Size: 5mm
  • $90.00
  • Flamboro Quarry
  • Wentworth County
    Ontario, Canada
  • A great-looking cluster of sphalerite crystals with a little sprinkling of dolomite crystals on one side. Actually the "cluster" is one complex crystal. Great colour!
FluoriteSouth Ontario Limestone Quarries, Fluorite, Page Two
  • Item #18683
  • Fluorite
  • 5.6x4.5x2.8 cm
  • Largest Crystal Size: 28mm
  • $90.00
  • Flamboro Quarry
  • Wentworth County
    Ontario, Canada
  • A great looking specimen showing an amber cube of gemmy fluorite on a matrix of a couple of other incomplete cubes and some dolostone. Nice colour! Shows very well!
Fluorite, SphaleriteSouth Ontario Limestone Quarries, Sphalerite, Page Two
  • Item #18682
  • Fluorite, Sphalerite
  • 5.3x3.1x1.7 cm
  • Largest Crystal Size: fl-13mm, s-24mm
  • $65.00
  • Flamboro Quarry
  • Wentworth County
    Ontario, Canada
  • A nice combination specimen showing a sharp fluorite cube, intergrown with a little dolostone and a very nice complex sphalerite crystal. Looks great!
FluoriteSouth Ontario Limestone Quarries, Fluorite, Page Two
  • Item #18681
  • Fluorite
  • 8.2x6.2x4.3 cm
  • Largest Crystal Size: as above
  • $120.00
  • Lafarge Quarry
  • Wentworth County
    Ontario, Canada
  • One of the largest fluorite crystals that I have ever seen from the Lafarge Quarry! The one corner is large and clear enough to accommodate a good sized cut gemstone! It is not complete but it IS large!!
FluoriteSouth Ontario Limestone Quarries, Fluorite, Page Two
  • Item #18680
  • Fluorite
  • 3.7x2.4x1.5 cm
  • Largest Crystal Size: 15mm
  • $40.00
  • Flamboro Quarry
  • Wentworth County
    Ontario, Canada
  • A sweet, thumbnail-sized cluster of fluorite on a shard of a stromatolite fossil. Nice cubic form and great luster.
SphaleriteSouth Ontario Limestone Quarries, Sphalerite, Page Two
  • Item #18678
  • Sphalerite
  • 3.5x3.5x1.6 cm
  • Largest Crystal Size: 13mm
  • $65.00
  • Flamboro Quarry
  • Wentworth County
    Ontario, Canada
  • What a great looking specimen! This stromatolite shard has a brown but fairly transluscent, complex sphalerite crystal at the top. Great luster! Shows very well.
SphaleriteSouth Ontario Limestone Quarries, Sphalerite, Page Two
  • Item #18677
  • Sphalerite
  • 3.5x2.8x1.8 cm
  • Largest Crystal Size: 10m
  • $60.00
  • Flamboro Quarry
  • Wentworth County
    Ontario, Canada
  • A very orange, complex crystal of sphalerite on dolostone matrix. Great colour!
Fluorite, SphaleriteSouth Ontario Limestone Quarries, Fluorite, Page Two
  • Item #18676
  • Fluorite, Sphalerite
  • 3.8x2.5x1.5 cm
  • Largest Crystal Size: 25mm
  • $90.00
  • Flamboro Quarry
  • Wentworth County
    Ontario, Canada
  • A superb, sharp example of a fluorite crystal from this great location. A nice sphalerite crystal attached to one side and two breccia fragments on the bottom. Shows perfectly!
TitaniteGrenville, Miller Property (Lost Mine), Eganville, Ontario
  • Item #18270
  • Titanite
  • 5.2x4.0x2.8 cm
  • Largest Crystal Size: 35mm
  • $75.00
  • Miller Property
  • Eganville
    Ontario, Canada
  • A cluster of two almost parallel-formed chocolate brown titanite crystals with some small fluorapatite crystals attached. Good luster!
Baryte, MarcasiteCanadian Specimens, Various Localities
  • Item #18268
  • Baryte, Marcasite
  • 10.7x10.0x6.8 cm
  • Largest Crystal Size: 3mm
  • $75.00
  • Aguathuna
  • Port au Port
    Newfoundland, Canada
  • The top of this specimen is largely covered with small, sparkling, bladed baryte crystals and some bronzy marcasite crystals. The barytes are in sort of botryoidal groupings. Very fossiliferous limestone matrix. Looks great!
TremoliteGrenville Minerals, Various Localities
  • Item #18267
  • Tremolite
  • 5.6x4.6x3.2 cm
  • Largest Crystal Size: 31mm
  • $35.00
  • Burleigh Road
  • Wilberforce
    Ontario, Canada
  • A specimen showing a large terminated, deep green, tremolite crystal, along with some smaller ones. A little calcite.
BaryteCanadian Specimens, Various Localities
  • Item #18266
  • Baryte
  • 4.1x3.6x1.6 cm
  • Largest Crystal Size: 9mm
  • $35.00
  • Aguathuna
  • Port au Port
    Newfoundland, Canada
  • A nice plate of colourless barite crystals with white zones on the corners.
AnalcimeMont Saint-Hilaire, Analcime and Microcline, etc.
  • Item #18265
  • Analcime
  • 9.0x6.9x4.8 cm
  • Largest Crystal Size: 38mm
  • $55.00
  • Mont Saint-Hilaire

  • Quebec, Canada
  • Some well formed, pure-white analcime crystals, piled on top of a large microcline crystal section and rotten pegmatite. A little serandite present, as well. Looks great!
Dolomite, QuartzCanadian Specimens, Various Localities
  • Item #18264
  • Dolomite, Quartz
  • 13.0x7.0x2.6 cm
  • Largest Crystal Size: d-8mm, q-24mm
  • $45.00
  • Castor's River

  • Newfoundland and Labrador, Canada
  • A nice plate of dolomite crystals with several, glassy, clear, well terminated quartz crystals on it. As well there is one calcite crystal that is nothing special. Unusual locality!
CalciteSouth Ontario Limestone Quarries, Various Minerals
  • Item #18263
  • Calcite
  • 7.3x5.4x3.9 cm
  • Largest Crystal Size: 31mm
  • $35.00
  • Lincoln Quarry
  • Beamsville
    Ontario, Canada
  • A nice mound of honey-coloured calcite crystals with one larger crystal on the right side. Displays very well!
CalciteCalcite   Various Localities
  • Item #18261
  • Calcite
  • 8.0x6.3x6.0 cm
  • Largest Crystal Size: as above
  • $85.00
  • Hwy 17
  • Madoc
    Ontario, Canada
  • A well formed, blocky, twinned crystal from this old locality. The crystal is mostly grayish with a slight mauve tinge. A little limestone attached to the back/bottom. Very nice!
Pyroxene GroupGrenville Minerals, Various Localities
  • Item #18255
  • Pyroxene Group
  • 4.7x2.0x1.8 cm
  • Largest Crystal Size: 47mm
  • $35.00
  • Trapper's Trail
  • Haliburton Co.
    Ontario, Canada
  • A nice, singly terminated crystal with a small attached crystal on one side. Nice!
TitaniteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #18251
  • Titanite
  • 5.0x3.4x2.0 cm
  • Largest Crystal Size: 42mm
  • $65.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • A sharp, dark brown wedge-shaped titanite crystal with some matrix attached. Nice specimen!
TremoliteGrenville Minerals, Various Localities, Page Two
  • Item #18250
  • Tremolite
  • 5.8x3.9x1.8 cm
  • Largest Crystal Size: 32mm
  • $50.00
  • Dancey Property
  • Haliburton Co.
    Ontario, Canada
  • A cluster of just barely green, end-member tremolite. Very nice!
FluorapatiteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #18246
  • Fluorapatite
  • 6.2x2.4x1.7 cm
  • Largest Crystal Size: as above
  • $30.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • A sharp prism of fluorapatite with one end having a concave sort of termination and the other with a protruding extension sort of termination. Nice crystal!
TremoliteGrenville Minerals, Various Localities
  • Item #18245
  • Tremolite
  • 4.8x3.6x2.4 cm
  • Largest Crystal Size: as above
  • $65.00
  • Dancey Property
  • Haliburton Co.
    Ontario, Canada
  • A very nice, deeply striated, highly lustrous, end-member tremolite crystal with a smaller crystal attached. These crystals do not have sharp terminations but do have excellent prism faces. Fairly gemmy with a very slight greenish colouration.
TremoliteGrenville Minerals, Various Localities, Page Two
  • Item #18244
  • Tremolite
  • 4.3x1.4x1.1 cm
  • Largest Crystal Size: as above
  • $45.00
  • Dancey Property
  • Haliburton Co.
    Ontario, Canada
  • A highly lustrous, colourless, striated prismatic crystal with a poor termination. (they all have poor terminations from here) End member tremolite, for sure!
Titanite, AnataseGrenville Minerals, Various Localities
  • Item #18243
  • Titanite, Anatase
  • 4.0x3.1x1.7 cm
  • Largest Crystal Size: as above
  • $75.00
  • Cardiff Uranium Mine
  • Wilberforce
    Canada
  • This is an interesting one! This was once a titanite crystal but the outer shell of it has been altered to anatase. You can see from the broken places that the core is dark brown titanite and the outer shell is a lighter-coloured anatase. A little purple fluorite attached. Classic.
Ferri-FluorokatophoriteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #18241
  • Ferri-Fluorokatophorite
  • 5.2x4.3x3.4 cm
  • Largest Crystal Size: as above
  • $60.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • A couple of interlocking textbook crystals of this rare amphibole group mineral. Very nice!
TremoliteGrenville Minerals, Various Localities, Page Two
  • Item #18240
  • Tremolite
  • 11.2x6.3x5.2 cm
  • Largest Crystal Size: 83mm
  • $75.00
  • Dancey Property
  • Haliburton Co.
    Ontario, Canada
  • A cluster of interlocking tremolite crystals from small acicular to large prismatic.
TremoliteGrenville Minerals, Various Localities, Page Two
  • Item #18239
  • Tremolite
  • 8.7x6.2x4.8 cm
  • Largest Crystal Size: 15mm
  • $65.00
  • Dancey Property
  • Haliburton Co.
    Ontario, Canada
  • A plate of striated, not well terminated end-member tremolite crystals with very good prism faces.
CalciteCalcite   Various Localities
  • Item #18238
  • Calcite
  • 16.0x10.5x3.0 cm
  • Largest Crystal Size: 26mm
  • $70.00
  • Abrahams Cove
  • Port au Port
    Newfoundland and Labrador, Canada
  • A large plate of sharp, light-honey-coloured scalenohedral calcite crystals with slight iron tint. A little bruising but most of the crystals are great! Displays well. Unusual locality.
CalciteSteep Rock Iron Mine, Atikokan, Ontario
  • Item #18237
  • Calcite
  • 14.2x9.1x3.0 cm
  • Largest Crystal Size: 24mm
  • $50.00
  • Steep Rock Iron Mine
  • Atikokan
    Ontario, Canada
  • A yummy plate of deep-chocolate brown rhombohedral calcite crystals on a matrix of iron carbonate and oxides. Different specimen from this long closed famous iron mine. A little bruising but displays fairly well!
Orthoclase, FluorapatiteGrenville, Miller Property (Lost Mine), Eganville, Ontario, Page Two
  • Item #18236
  • Orthoclase, Fluorapatite
  • 12.0x11.8x6.8 cm
  • Largest Crystal Size: 62mm, 25mm
  • $85.00
  • Miller Property
  • Eganville
    Ontario, Canada
  • A cluster of feldspar crystals, some very well formed, associated with fluorapatite, one crystal of which is very well formed and pokes out from between a couple of the feldspar crystals. These crystals have been naturally etched out of enclosing calcite and some of the pink calcite remains. Excellent example of this association and geological process.
Fluorite, QuartzCanadian Specimens, Various Localities
  • Item #18235
  • Fluorite, Quartz
  • 19.0x8.8x7.8 cm
  • Largest Crystal Size: n/a
  • $75.00
  • St. Lawrence Fluorspar Mine
  • St. Lawrence
    Newfoundland, Canada
  • A large plate of mostly quartz crystal-covered fluorite crystals. The fluorite crystals are octahedral and their shape can be readily seen under the thing drape of quart crystals. The rest of the matrix is solid. green fluorite!
CalciteSouth Ontario Limestone Quarries, Various Minerals
  • Item #18234
  • Calcite
  • 7.4x5.0x4.2 cm
  • Largest Crystal Size: 19mm
  • $35.00
  • Lafarge Quarry
  • Wentworth County
    Ontario, Canada
  • A pleasant-looking cluster of calcite crystals, mostly smaller ones, with a couple of larger scalenohedral crystals. A nice example!
Titanite, PyroxeneGrenville, Miller Property (Lost Mine), Eganville, Ontario
  • Item #18233
  • Titanite, Pyroxene
  • 11.6x8.0x6.5 cm
  • Largest Crystal Size: 32mm
  • $70.00
  • Miller Property
  • Eganville
    Ontario, Canada
  • This matrix of coarse pyroxene crystals is crowned with a number of dark brown, well formed, wedge-shaped titanite crystals. Displays well.
Titanite, FluorapatiteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #18230
  • Titanite, Fluorapatite
  • 8.6x7.3x2.8 cm
  • Largest Crystal Size: as above
  • $75.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • A large, malformed crystal segment of dark brown titanite associated with fluorapatite. It is not pretty but it is BIG!
Titanite, FluorapatiteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #18229
  • Titanite, Fluorapatite
  • 8.4x5.6x2.1 cm
  • Largest Crystal Size: as above
  • $75.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • This large, thick, lustrous crystal is strogly intergrown with fluorapatite crystals particularly on the back. One larger fluorapatite crystal pokes over the top of the front, as you can see. Interesting piece.
Titanite, FluorapatiteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #18228
  • Titanite, Fluorapatite
  • 4.8x4.0x1.0 cm
  • Largest Crystal Size: as above
  • $65.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • A very nice almost complete, chocolate-brown, titanite crystal. Very lustrous and well formed with a few small apatite crystals clinging to the sides.
Titanite, PyroxeneGrenville, Miller Property (Lost Mine), Eganville, Ontario
  • Item #18227
  • Titanite, Pyroxene
  • 7.6x5.2x3.7 cm
  • Largest Crystal Size: t-12mm
  • $40.00
  • Miller Property
  • Eganville
    Ontario, Canada
  • A stack of partially altered pyroxene crystals with a lustrous, sharp titanite crystal on top. Nice association piece.
OrthoclaseGrenville, Miller Property (Lost Mine), Eganville, Ontario
  • Item #18226
  • Orthoclase
  • 8.3x7.4x6.8 cm
  • Largest Crystal Size: 57mm
  • $85.00
  • Miller Property
  • Eganville
    Ontario, Canada
  • This specimen is a cluster of well formed orthoclase crystals that are viewable form several angles. One big crystal serves as the base or the main crystal for viewing! A couple of dings or contact points but displays very well from other sides.