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Minerals from Montana
Images below are hyperlinked.....click mineral to enlarge
To order a mineral give the mineral name and the number of the specimen(s) you wish to purchase.
You will receive that exact specimen(s).
Satisfaction is guaranteed. Return any specimen in its original condition and receive a refund with no questions asked.
Quartz and Rhodochrosite
Mineral # 723
Emma Mine, Silver Bow County, Montana
14 x 9 x 4 cm
$ 595
Fine pink to white botryoidal Rhodochrosite with numerous quartz crystals
Mineral # 723
Emma Mine, Silverbow County, Montana
This is a close-up image of this fine specimen
Bornite
Mineral # 700
Leonard Mine, Butte, Silver Bow County Montana
5.5 x 1.5 x 1.5 cm
$ 45
Solid, bluish, metallic specimens collected in the Kelly mine in Butte when the mines were active
\
Bornite
Mineral # 700
Leonard Mine, Butte, Silver Bow County Montana
A close-up view of the Bornite specimen above; this mineral is so reflective that it is difficult to photograph
Mineral # 701
Leonard Mine, Butte, Silver Bow County Montana
8.5 x 6 x 2.5 cm
$ 75
Bornite
Mineral # 701
This is another view of this flashy specimen
Mineral # 721
Leonard Mine, Butte, Silver Bow County Montana
44 x 3 x 1 cm
$ 38
Mineral # 721
A closer view with a change in light source
Mineral # 722
Leonard Mine, Butte, Silver Bow County Montana
49.5 x 7.5 x 5 cm
This is a hefty specimen weighing just over 907 grams
$ 165
Mineral # 722
A close-up pic which shows the brilliant colors typical of Bornite
Covellite
Mineral # 702
Leonard Mine, 3859' level, Butte,
Silver Bow County, Montana
2.8 x 2.5 x 1 cm
$ 49
Covellite was the primary ore the Butte copper mines. This sample was mined
in the early 1970's towards the end of this famous mining district.
Covellite
Mineral # 702
A close-up view of the specimen above
showing Covellite throughout much of the stone
Covellite
Mineral # 703
Leonard Mine, 3859' level,
Butte, Silver Bow County, Montana
4.5 x 4 x 1.5 cm
$ 119
\Covellite
Mineral # 703
Another view of the opposite side of the stone
Be sure to click on the specimen to enlarge it to see the detail of the interlocking Covellite crystals
Mineral # 713
Leonard Mine, 3859' level, Butte,
Silver Bow County, Montana
4 x 2 x 1 cm
$ 65
Mineral # 713
View here is the opposite side of mineral 713 showing multiple colors in specimen which probably includes some bornite
Mineral # 714
Leonard Mine, 3859' level, Butte,
Silver Bow County, Montana
7.5 x 5 x 2 cm
$ 109
Mineral # 714
One edge of specimen showing the deep blue color of the Covellite inside this colorful specimen
A different light source helps demonstrate the multiple colors of this fine specimen
Digenite
Mineral # 720
Leonard Mine, Butte,
Silver Bow County,
Montana
2 x 1 x 0.4 cm
$ 40
Digenite
Mineral # 720
Another view of this rarer specimen showing the deeper silver-blue color of Digenite; pyrite at center of photo
Rhodochrosite
Mineral # 704
Emma Mine, Silver Bow County Montana
5.5 x 4.5 1.5 cm
$ 65
Fine pink to white botryoidal Rhodochrosite crystals covering matrix of quartz with pyrite
Rhodochrosite
Mineral # 704
Another view of the specimen above
Rhodochrosite
Mineral # 705
Emma Mine, Silver Bow County Montana
10 x 9 x 2 cm
$ 125Crystalline Rhodochrosite with a light pink to rose coloration; the botryoidal appearance is not seen here as it covers quartz crystals
Rhodochrosite
Mineral # 705
another view of the specimen above
Rhodochrosite
Mineral # 706
Emma Mine, Butte,
Silver Bow County, Montana
7 x 4.5 x 3.5 cm
$ 95
Massive, crystalline Rhodochrosite; this material has a deeper red color than the material listed above without a botryoidal surface
Rhodochrosite
Mineral # 706
another view of the specimen above
Quartz, Pyrite and Rhodochrosite
Mineral # 707
Butte, Silver Bow County, Montana
8 x 6.5 x 4.3 cm
$ 75
Quartz, Pyrite and Rhodochrosite
Mineral # 707
A closer view of the specimen showing the pyrites on the quartz crystals
with a light dusting of light pink Rhodochrosite over the specimen
Stillwater Gabbro, JM Reef, PGE pre
Mineral # 708
Stillwater Mine, Stillwater, Sweet Grass and Park Counties, Montana
Contents of specimen include Plagioclase
+/- Augite, bronzite, with the sulfides chalcopyrite, pyrrhotite, and Pentalandite
6.5 x 5 x 5.5 cm
$ 45
Stillwater Gabbro, JM Reef, PGE ore
Mineral # 708
Click to see a close-up view showing the sulfides which make this ore valuable.
Stillwater Gabbro, JM Reef, PGE ore
Mineral # 709
Stillwater Mine, Stillwater County, Montana
7.5 x 3 x 4.5 cm
$ 75
Contents of this specimen include Plagioclase
+/- augite, bronzite, with the sulfides
chalcopyrite, pyrrhotite, pentalandite
\Stillwater Gabbro, JM Reef, PGE ore
Mineral # 709
Another view of this specimen showing the interesting structure of the rocks from the JM Reef
Stillwater Anorthosite; Norite (calcic plagioclase and orthopyroxene) containing sulphides
Mineral # 710
Stillwater Mine, Sweet Grass and Park Counties, Montana
7 x 2.5 x 4 cm
$ 45
Stillwater Anorthosite contains numerous sulfides contianing PGE's (Platinum Ground Elements)
Stillwater Anorthosite; Norite (calcic plagioclase and orthopyroxene) containing sulphides
Mineral # 710
another view of the specimen above
Click on the mineral to enlarge the specimen, in the center and going down from there you can see what looks like pyrite.
Those are the sulfides may contain the PGE's.
Stillwater Anorthosite; Norite (calcic plagioclase and orthopyroxene) containing sulphides
Mineral # 711
Stillwater Mine, Sweet Grass and Park Counties, Montana USA
6 x 4 x 6 cm
$ 55
Stillwater Anorthosite contains numerous sulfides appearing as dark sulfide spots which contain the PGE's (Platinum Groundplements)s)
Stillwater Anorthosite; Norite (calcic plagioclase and orthopyroxene) containing sulphides
Mineral # 711
Click on the mineral to the left to view what appear to be
pyrites in the middle of this specimen
It takes a lot of ore to yield one kilo of platinum.
Vermiculite
Mineral # 712
Vermiculite Mountain Mine (Libby Vermiculite Mine),
Rainy Creek District, Lincoln County, Montana
7 x 6 x 0.3 cm
$ 50
The surface of this specimen is highly reflectivee
VermiculiteVermiculite
Mineral # 712
This is specimen is actually a collection of thin, black "mica" plates
which take on other colors as the light source is moved
Mineral # 715
East Colusa Mine, Butte
Silver Bow County, Montana
7.5 x 4 x 1.5 cm
$ 95
Mineral # 715
Another view of Pyrite covering Chalcocite
Mineral # 716
East Colusa Mine, Butte
Silver Bow County, Montana
9.5 x 5.5 x 3 cm
SOLD
Mineral # 716
Another closeup view of the Chalcocite forming a network of stringers through the white quartz; Pyrite scattered about; nice specimen
Mineral # 717
East Colusa Mine, Butte
Silver Bow County, Montana
7 x 3.5 x 1.5 cm
$ 100
Mineral # 717
View on opposite side which shows the Chalcocite appearing with a purple color
Chalcocite with Pyrite
Mineral # 717
Another view of this specimen
showing the brecciated appearance
of the quartz
Mineral # 718
East Colusa Mine, Butte
Silver Bow County, Montana
4 x 3 x 1 cm
$ 55
MIneral # 718
Another view on the opposite side of specimen 718 showing mainly the Chalcocite with some veining through the quartz matrix
Chalcocite with Pyrite
Mineral # 719
East Colusa Mine, Butte
Silver Bow County, Montana
6.5 x 4.5x 1.5 cm
$ 105
Chalcocite with Pyrite
Mineral # 719
A closer view of the Chalcocite stringers in quartz showing their typical silver color
Occasional pyrites add to the attractiveness of the specimen
Stillwater Mine Gabbro, JM Reef, PGE ore
Mineral # 724
Plagioclase +/- Augite, Bronzite with sulfides: Chalcopyrite, Pyrrhotite and Pentalandite
Stillwater County, Montana
11x 6.5 x 4 cm 840 grams
$ 60
Mineral # 724
Plagioclase +/- Augite, Bronzite with sulfides: Chalcopyrite, Pyrrhotite and Pentalandite
A closer view of this specimen; look for metallic areas to find the ore which looks a little like copper flecks
Mineral # 725
Plagioclase +/- Augite, Bronzite with sulfides: Chalcopyrite, Pyrrhotite and Pentalandite
Stillwater County, Montana
17 x 10 x 4 cm 907 grams
$ 70
Mineral # 725
Plagioclase +/- Augite, Bronzite with sulfides: Chalcopyrite, Pyrrhotite and Pentalandite
View of the specimen above from another angle
Mineral # 725
Plagioclase +/- Augite, Bronzite with sulfides: Chalcopyrite, Pyrrhotite and Pentalandite
A closer view of the image above
Mineral # 725
Plagioclase +/- Augite, Bronzite with sulfides: Chalcopyrite, Pyrrhotite and Pentalandite
A very close view of this specimen; note the fuzzy ore that looks like gold
Mineral # 725
Plagioclase +/- Augite, Bronzite with sulfides: Chalcopyrite, Pyrrhotite and Pentalandite
One more view of this specimen from another angle
Mineral # 725
Plagioclase +/- Augite, Bronzite with sulfides: Chalcopyrite, Pyrrhotite and Pentalandite
Stillwater County, Montana
11 x 11 x 6 cm 1814 grams
$ 125
Stillwater Mine Gabbro, JM Reef, PGE ore
Mineral # 726
Plagioclase +/- Augite, Bronzite with sulfides: Chalcopyrite, Pyrrhotite and Pentalandite
This is a large specimen that is a little different in its striking appearence with black and white contrasts
The ore in this specimen is the silver patches in the lower left corner and in the top left also.
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