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RADIOACTIVE MINERALS

IMPORTANT INFORMATION REGARDING RADIOACTIVE MINERAL SPECIMENS ! !
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= Fluorescent Specimen
   =  Radioactive Specimen







mi1097a.jpg (37041 bytes)
A.
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B.
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C.
mi1097d.jpg (39068 bytes)
D.
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E.
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G.
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H.
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I.

URANINITE with BORNITE
Spook Mine, Red Canyon District, San Juan County, Utah
At some localities where Uraninite was found, copper-bearing sulfides were also present in the ore.   The mineral Bornite was identified in association with the Uraninite at several of the mines in the Red Canyon and White Canyon Districts in San Juan County in the mid-1950’s to early 1960’s.  Bornite is a copper iron sulfide, Cu5FeS4.  Bornite has a metallic luster, and is dark bronze-blue-black in color, sometimes with a slightly iridescent tarnish.  Two other copper-bearing sulfides have also been identified from mines in this area – Chalcocite and Covellite.  Chalcocite is cuprous sulfide, Cu2S, metallic black in color, sometimes exhibiting a slight blue tarnish.  Covellite is cupric sulfide, CuS, dark metallic indigo blue-black, sometimes with a purple-black tarnish.  Chalcocite and / or Covellite may also be present on the specimens listed here, but their presence has not been verified by analysis.  Since the above mentioned copper-bearing sulfides are not radioactive, some of the specimens from the Spook Mine may have slightly lower than expected mR/hr and CPM readings.  This is because part of the overall volume of the specimen is Bornite, which is not radioactive.  The combination of the black Uraninite, with the dark metallic bronze-blue-black Bornite, makes for very striking, often visually attractive specimens.  This is especially true on some of the specimens which have been cut and polished.  Item C. has two nodular masses of smoky Quartz included.  Items G., H., and I. have very small veinlets of massive white Calcite associated.  In the column below labeled Specimen Preparation, N = natural.  CP 1 in this column indicates that the specimen has been cut and polished on one surface.  The ore from the Spook Mine was found to be very dense and solid, so it was not necessary for researchers to apply Epoxy to any of the specimens, to stabilize before cutting and polishing.
The gram weights are given, as well as the sizes of the specimens in inches, plus readings with the CD V-700, to assist you in determining the relative richness of the Uraninite.  A quantity discount is applicable to specimens weighing > 300 grams (items J., K., L., and M.).  Items J. and L. have a 15% quantity discount deducted.  Items K. and M. have a minimal amount of rock and Quartz matrix in addition to the Uraninite and Bornite, so they have been given a 20% discount. The discounts have already been deducted in the prices printed below.  Order item MI-1097, specimen numbers A. through M.





MI-
1097

WEIGHT
(GRAMS)

SPECIMEN SIZE
(INCHES)

 SPECIMEN PREPA-      RATION

mR/hr @ 1”
CD V-700 GM
COUNTER

CPM @ 1”
CD V-700 GM
COUNTER

SPECIMEN
PRICE

A.

32.50

2 1/8

1

5/8

CP 1

5

3,000

SOLD

B.

56.45

2

7/8

1/2

N

45

27,000

SOLD

C.

69.92

2

1 1/8

1

CP 1

.5

300

SOLD

D.

78.50

2 3/4

1 1/2

1/4

CP 1

10

7,500

SOLD

E.

88.60

2 1/8

1 3/4

3/4

CP 1

20

13,300

SOLD

F.

95.60

2 3/8

1 1/2

3/4

N

10

7,500

SOLD

G.

103.40

1 5/8

1 5/8

7/8

CP 1

25

16,600

SOLD

H.

148.40

2 3/4

1 1/4

1 1/4

CP 1

15

10,000

SOLD

I.

172.35

2 1/2

1 1/4

1 1/4

CP 1

15

10,000

SOLD

J.

331.40

3 1/8

3

1

N

50

30,000

SOLD

K

333.00

3 7/8

2 1/8

1 1/4

N

15

10,000

SOLD

L.

372.75

2 7/8

2 1/4

1 1/2

CP 1

40-45

>25,000

SOLD

M.

1,043.65

5

3

2

N

30

20,000

$ 584.50













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J.		 mi1097k.jpg (55083 bytes)
K..		 mi1097l.jpg (54215 bytes)
L.		 mi1097m.jpg (59839 bytes)
M.


A.

B.

C.
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D.
E.
F.
G.

H.

 CUPROSKLODOWSKITE
Musonoi Extension, near Kolwezi, Shaba Province, Zaire
The Musonoi Mine is famous for its world-class specimens of Cuprosklodowskite, a uranium and copper-bearing silicate. Cuprosklodowskite usually forms bright apple-green acicular needles – most often found as compact intergrowths, and fairly infrequently as terminated crystals where voids occur within the rock matrix. The most spectacular examples are large specimens which display open vugs in the matrix, completely lined with needle-like terminated crystals – these are extremely rare! The specimens offered here are of very good quality, collected sometime within the last 2-3 years. For background information on Cuprosklodowskite, see the special Katanga issue of the "Mineralogical Record" magazine, Vol. 20, No. 4, July-Aug 1989, P. 265-288. The Nov-Dec 2002 issue (Vol. 33, No. 6) of the "MR", P. 484-485 has current information on the status of mineral collecting at the Musonoi Mine, along with a photo of the now abandoned mine. Two photos of exceptional Metatorbernite and Cuprosklodowskite specimens, which were previously collected at Musonoi, also accompany the article. Associates noted on the specimens below include one or more of the following, as abbreviated on the table below: MA = Malachite (dark green), RU = Rutherfordine (tan to yellowish-tan), GU = Guilleminite (bright canary yellow coatings), HE = Heterogenite (black, massive), and/or ME = Metatorbernite (green, platy masses, to tabular micro crystals).


NOTE:  The special Katanga issue of the "Mineralogical Record" magazine is available for sale -- see the bottom of this page for additional information.





MI-1020

 SPECIMEN SIZE(INCHES)

 ASSOCIATED
MINERALS

mR/hr @ 1”
CD V-700 GM
COUNTER

CPM @ 1”
CD V-700 GM
COUNTER

SPECIMEN
PRICE

A.

1 1/8

7/8

1/2

MA, GU, HE

20

13,300

SOLD

B.

1 5/8

7/8

3/4

MA, HE

35

22,500

SOLD

C.

1 1/2

1 1/4

7/8

MA, ME

20

13,300

SOLD

D.

1 5/8

1 1/4

1

GU, MA, HE

45

27,500

SOLD

E.

1 7/8

1 1/4

3/4

MA, ME, GU

> 50

> 30,000

SOLD

F.

2 1/8

1 3/8

1 1/8

MA, GU

18

12,000

SOLD

G.

1 3/4

1 3/4

1 1/2

MA, GU, HE

> 50

> 30,000

SOLD

H.

2

1 5/8

3/4

MA, GU, HE, RU

> 50

> 30,000

SOLD


 

NEW TITLE

“KATANGA! … URANIUM DEPOSITS”, By G. Gautier, A. Francois, M. Deliens, and P. Piet, 11” X 8”, 63 pages, with 19 color photographs, 12 crystal drawings, several maps and tables, soft cover.  The primary article of interest in this special issue of the “Mineralogical Record” magazine is entitled “Famous Mineral Localities: the Uranium Deposits of the Shaba (Katanga) Region, Zaire”.   Since the days of Stanley and Livingstone, the Shaba region has been known as one of the world’s great mineralized areas.  A crescent shaped deposit about 300 km in length and nearly 50 km wide extends from the town of Kolwezi in the west, to the city of Lubumbashi in the east.  This area is the location of several very important Uranium mines, including familiar names like Shinkolobwe, Swambo, Kamoto, Mashamba-West, Luiswishi, and Musonoi.  The mining history is given in some detail, including notes on the production of Copper and Uranium ores in the Katanga region.  The general geology of the district is given, including a stratigraphical map of the Katanga System.  Four of the most important mines are then discussed in detail, accompanied by geological maps and black & white photos of the mine sites.  Data is then given on each of the important minerals – primary minerals, then secondary Uranium minerals.  This section is accompanied by 19 exquisite color photographs illustrating many of the secondary Uranium-bearing minerals, along with a dozen crystal drawings.  The color photos and crystal drawings will be of prime importance to anyone studying and / or collecting secondary Uranium-bearing minerals, as an aid in visual identification of the minerals from the various mines of the region.  Four tables accompany the text, each containing a list of the minerals found at one of the following mines: Shinkolobwe, Swambo, Musonoi, and Kamoto.  The authors have included a large list of references, for further reading.  Two other articles are included in this special issue of the “Mineralogical Record” magazine – “Rome Delisle and His Bibliography”, by W. Wilson, and “Additions and Corrections to the Glossary of Mineral Species", 5th Edition (1987)” by M. Fleischer.  Published by the Mineralogical Record, Inc., Tucson, Arizona, as the special issue on Katanga, Volume 20, No. 4, July-August 1989.

Shipping weight:  2 pounds
Order Item MR20-4
Price:  $20.00

 

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