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MINERAL SPECIMENS FOR DISPLAY


Click on specimen to see larger picture.

= Fluorescent Specimen
   =  Radioactive Specimen

 

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A.
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B.
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C.
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D.
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E.

GRAPHITE (native C)
Lead Hill Mine, near Ticonderoga, Essex Co., New York   (Dana locale)
The best reference to the Graphite from this locality appears in the “Mineralogical Record” magazine, Jan-Feb 1983, P. 25-30.  All specimens listed below were collected by the authors of the article prior to 1982.  On P. 29 of the reference, the authors describe their Type 3 specimen material – thin, flattened Graphite crystal flakes distributed randomly in massive Quartz.  Crystallized Graphite is uncommon – Graphite is usually found in massive form. The Graphite is bright metallic gray, and the Quartz is off-white in color.  A couple of these specimens also have massive white Calcite associated.  This old mine was originally worked around 1850, and last commercially worked about 1910.  Additional information on the general
Ticonderoga , NY area can be found in the “Encyclopedia of Minerals”, Roberts, et al, (1974, first edition), P. 246.  Composition:  C (carbon).   Specimens are priced according to richness, not relative to the size of the matrix. 

 


 

MI-1115

SPECIMEN SIZE
(INCHES)

SPECIMEN
PRICE

A.

1 1/2

7/8

1/2

SOLD

B.

1 3/8

1 3/8

7/8

SOLD

C.

2

1 3/4

1 1/8

SOLD

D.

2

1 5/8

1 1/2

$  22.50

E.

2 3/4

1 3/8

1 3/8

$  28.50

F.

2 5/8

1 3/4

1 3/8

SOLD

G.

3

1 5/8

1 1/2

SOLD

H.

2

1 3/4

1 3/8

SOLD


 



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F.
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G.
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H.

A.

B.

C.
SILVER (native Ag)
Uchucchacua Mine, Oyon Province, Lima Dept., Peru
For background information on this locality, refer to the “Mineralogical Record” magazine, Vol. 28, No. 4 (special issue on the “Mines and Minerals of Peru”), July-Aug 1997, Page 61.  The Uchucchacua Mine is known for spectacular examples of wire Silver.  The three specimens pictured here were mined circa 2004. 

* Item A. has a slightly curved, individual Silver wire 3/4” in length protruding from the top of the matrix.  Small amounts of wire Silver are also present on the side of the specimen, not visible in the photograph.  Rich amounts of massive black Acanthite are associated.

* Item B. has two attractive, curved, native Silver wires protruding from the top of the matrix. The largest of the two Silver wires measures 1" tall X 1/8" wide at the base. The smaller wire is 1/2" long.  Very rich amounts of small Silver wires are also protruding from the front and back of the matrix.  An open vug, on the top of the matrix, is lined with drusy white Calcite crystals.  Minor black massive Acanthite is present, intergrown in the matrix.

* Item C. has 6 distinct native Silver wires standing up along the top of the matrix.  The largest wire forms an L shape, positioned near the right side of the specimen.  It measures 7/8” in length X near 1/4” wide at the thickest part of the L.  The other wires range in size from 1/4” to 1/2” tall, and the matrix is richly included with masses and wires of Silver as well as massive black Acanthite.  The back of the matrix has been sawed.


 

MI-1065

SPECIMEN SIZE
(INCHES)

SPECIMEN
PRICE

A.

1 1/2

1 3/8

1

SOLD

B.

1 1/4

1 3/8

7/8

SOLD

C.

2 1/8

1 3/4

1 1/4

$150.00

 


MI-1591

MI-1592

MI-1593

MI-1594

MI-1595

MI-1596

QUARTZ (pseudo-bipyramidal)
Sovietskiy #2 Mine, Dal’negorsk, Primorskiy Kray, Russia

The occurrence of pseudo-bipyramidal Quartz crystals at the Sovietskiy #2 Mine is mentioned in the special Dal’negorsk issue of the “Mineralogical Record” magazine, Vol. 32, P. 26-28.  These unusual, translucent, very sharp Quartz crystals have no prism faces, and average ~ 3/8” up to 1” in size.  The size of the largest crystal on each specimen is given in the table, below.  The individual pseudo-bipyramidal crystals are intergrown, forming clusters of attractive miniature to small cabinet specimen size, with little or no matrix.  Occasional inclusions within the Quartz crystals are acicular needles of Hedenbergite.  The specimens are actually much more attractive, than the photographs reveal.

 

Item MI-1596 has about 20 colorless, elongated, scalenohedral Calcite xls. standing up all over the surface of the matrix, encircling the large Quartz crystal like a crown.  A single, very large (1 1/2” diameter), pseudo-bipyramidal Quartz crystal is perched on top of the group of Calcite crystals.  The Calcite crystals average 1/2” to 3/4” tall, and are fluorescent bright pink-red under both shortwave (SW) and longwave (LW) ultraviolet.

 

 

 

ITEM NO.

SPECIMEN SIZE
(INCHES)

NUMBER OF CRYSTALS

SIZE OF
LARGEST XL.

SPECIMEN
PRICE

 

MI-1591

1 1/2

1 3/8

1

6

7/8

$  45.00

 

MI-1592

1 5/8

1 3/8

3/4

4

1 1/8

$  50.00

 

MI-1593

2 1/8

1 3/8

5/8

7

1 1/4

$  60.00

 

MI-1594

2

1 1/4

1

8

1

$  60.00

 

MI-1595

2

1 1/4

1

5

1

$  55.00

 

MI-1596

2 5/8

1 3/4

1 7/8

1

1 1/2

$125.00


 

 

WOLFRAMITE, PYRITE, QUARTZ
Kara-Oba W Deposit, Betpakdala Desert (Bet-Pak-Dal Desert), Qaraghandy Oblysy (Karaganda Oblast'), Kazakhstan

The Kara-Oba Mine is a greisen tungsten-molybdenum deposit located in central Kazakhstan.  It has produced some very fine Wolframite crystals in the past years, and is also known for well crystallized Bertrandite, Cosalite, and numerous other minerals.  The specimen offered here is from the collection of the Fersman Mineralogical Museum in Moscow, with a museum label.  The two terminated, parallel growth Wolframite crystals on the front of the specimen are striated, shiny black in color.  The largest crystal is 1 5/8” tall, 1 1/4” wide, and 1/4” thick.  The smaller crystal is 1 1/4” tall X 3/4” wide.  Crystallized Arsenopyrite, Pyrite, and Quartz are associated.  The largest Quartz crystal measures 1 1/4” in length X 3/8” wide, and is double terminated.  A druse of micro Pyrite crystals coats much of the back of the specimen, including portions of the Quartz and Wolframite crystals.  Very aesthetic specimen! 

Specimen size:  1 5/8” tall, 1 3/4” wide, and 1 3/8” thick.
Price:  $125.00
Order item MI-1597

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B.

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C.

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D.
PSEUDOBOLEITE on BOLEITE
Amelia Mine, Boleo Copper District, Santa Rosalia, Baja California, Mexico
The Boleo Copper District is the type locality for both Pseudoboleite and Boleite. Pseudoboleite is always associated with Boleite, as an epitaxial overgrowth upon the face(s) of a cube of Boleite. See the idealized crystal drawings illustrating Pseudoboleite on Boleite in the "Mineralogical Record" magazine, Vol. 29, No. 1, P. 44, Fig. 44 (special Mexico I issue). The specimens offered here are not symmetrically perfect, as shown in the crystal drawings. They do, however, show the Pseudoboleite overgrowth on one or more of the Boleite crystal faces, similar to the drawing with the simple faces illustrated in the lower left corner of the "MR" reference, Fig. 44 as noted above. Color is dark royal blue, similar to the color of the specimen illustrated in Fig. 17, P. 61 of the "MR" reference. The tiny specks of orange-brown material shown in some of the photos, adhering to the crystals, are tiny specks of Montmorillonite clay – the host material in which the crystals were found. See P. 56 of the "MR" reference for information on the ore bed, and the varicolored Montmorillonite clay. Order Item MI-1070, items A., B., C., or D.


MI-1070

SPECIMEN SIZE
(MILLIMETERS)

SPECIMEN
PRICE

A.

2.5

2.5

2.5

$ 15.

B.

7.0

7.0

6.0

SOLD

C.

6.0

6.0

6.0

SOLD

D.

7.0

6.5

6.5

SOLD

 

   

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