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RARE MINERALS, NATIVE ELEMENTS & MICROS FOR DISCRIMINATING COLLECTORS   


  
NEW ACQUISITIONS

 

ZINCITE
New Jersey Zinc Company Mine, Franklin, Sussex County, New Jersey

The mines at Franklin and Sterling Hill, New Jersey are undoubtedly the best known localities in the world for Zincite, (Zn,Mn2+)O.  Several specimens are available here, all with rich, to very rich amounts of dark red massive Zincite in matrix with one or more of the following associated minerals: Tephroite (massive, gray), Franklinite (submetallic luster, black), Willemite (color varies), Calcite (white), Hydrozincite (thin white coating), Sussexite (silky white, fibrous).  The following abbreviations are for the associated minerals, in the table below:  T = Tephroite, W = Willemite, C = Calcite, F = Franklinite, S = Sussexite, and H = Hydrozincite.  UV Fluorescence:  Willemite is typically fluorescent bright green under shortwave ultraviolet (SW UV) light.  Calcite is typically fluorescent bright red to red-pink under SW UV.  Hydrozincite fluoresces very pale yellow-tan, SW only.  Longwave ultraviolet (LW UV) responses for the fluorescent minerals, if present, are typically somewhat less intense than the SW responses.  Item 2206 is an extremely dense, rich Zincite / Franklinite specimen with a weight of 1,081 grams (2.6 pounds).  Item 2207 has one edge sawed flat, providing a base for the specimen to stand upright in perfect orientation for display.

           

ITEM   NO.

ASSOCIATED MINERALS

SPECIMEN SIZE
(INCHES)

SPECIMEN
PRICE

 

2200

 W, F, C

1 1/4

3/4

1/2

SOLD

 

2201

 W, F, C

1 5/8

1

3/8

$  18.50

 

2202

 W, F, C

2 1/4

1 1/2

7/8

$  22.50

 

2203

 W, F, C, H

1 1/4

1 1/4

3/4

SOLD

 

2204

 W, F, C

3 1/4

2 1/4

1 1/4

SOLD

 

2205

 W, F, C, S

3

2 1/2

1 5/8

$  30.00

 

2206

 W, F, C

3 3/4

2 5/8

2 3/8

$  95.00

 

2207

 W, F, C, T

4 1/8

2 1/2

1 1/2

$120.00


2200

2201

2202

2203

2204

2205

2206

2207

 

EDINGTONITE
Ice River Alkaline Complex, Yoho National Park, near Golden, British Columbia, Canada

Edingtonite is a rare zeolite found in crystal form at only a few localities, worldwide.  The Edingtonite from the Ice River occurrence is of exceptional quality for the mineral, typically found as sharp, prismatic, colorless to white micro crystal prisms, usually in groups, on matrix.  Hemimorphism is very distinctly displayed on the double terminated crystals -- items D. and 1998 both have double terminated crystals, best appreciated with 10X or greater magnification. Calcite is occasionally associated.  Items 1998 has Calcite crystals associated. The best references to the Ice River Edingtonite can be found in the “Mineralogical Record” magazine, Vol. 12, P. 221-226, and Vol. 14, P. 50-51, as well as in “Zeolites of the World”, Rudy Tschernich, P. 142-143 (1992).  Numerous photos of crystallized Edingtonite from this locality can also be seen on MINDAT by searching Edingtonite and Ice River.

 

 

MI-

SPECIMEN SIZE(INCHES)

SPECIMEN
PRICE

 

1299D

3/4

3/4

1/2

SOLD 

 

1998

1 /2

1 1/4

7/8

$  95.00

 


1299D

1998

 

MANGANVESUVIANITE
N’Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa
New mineral!  The specimens described below were collected at one of the two localities within the Kalahari Manganese Field where Manganvesuvianite was first identified from (type locality) – the N’Chwaning II Mine.  The N’Chwaning II Mine has been well known for many years as a source for fine crystallized Rhodochrosite, Hausmannite, Inesite, as well as many other manganese-bearing minerals.  Also see the listing for Poldervaartite on Page 1 of the rare minerals section of our web site (a link is below).  Manganvesuvianite forms translucent to opaque, typically small, dark maroon red to near black individual, prismatic, terminated crystals in groups, usually on a black Hausmannite matrix.  Minor white Barite is sometimes associated.  The pink mineral shown in some of the photos is an unknown – it may be crystalline / massive Rhodochrosite. The best reference for Manganvesuvianite in English is the “Mineralogical Magazine”, Vol. 66, P. 137-150.  Chemical composition is: Ca19Mn(Al,Mn,Fe)19(Mg,Mn)2Si18O69(OH)9. 

 Also see Poldervaartite, from the N’Chwaning II Mine.

MI-1098

SPECIMEN SIZE
(INCHES)

SPECIMEN
PRICE

A.

1 1/8

7/8

5/8

$  30.00

B.

1 1/2

1 1/8

1

SOLD

C.

2 1/2

1 1/4

3/4

$  55.00

D.

2 3/8

2 1/8

1 1/4

SOLD

E.

2 1/2

2

1

$  80.00

F.

2 1/2

2 3/8

1 5/8

$  70.00

G. 1 1/2 1 3/8 3/4 $85.00

 

mi1098a.jpg (58083 bytes)
A.
mi1098b.jpg (54242 bytes)
B.
mi1098c.jpg (55087 bytes)
C.
mi1098d.jpg (84635 bytes)
D.
 
mi1098e.jpg (68941 bytes)
E.
mi1098f.jpg (84860 bytes)
F.

G.
mi1098micro1.jpg (80274 bytes)
Typical close up of xtls
mi1098micro2.jpg (98273 bytes)
Typical close up of xtls

 

MANJIROITE
N’Chwaning II Mine, Kalahari Manganese Field , Northern Cape Province, South Africa
In addition to the new discovery of Maganvesuvianite described above, our contact for minerals from this locality was able to supply us with several examples of Manjiroite.  Chemical composition is: (Na,K)(Mn4+,Mn2+)8016.nH2O  Manjiroite was found as lustrous, brown-black, cross-fiber veinlets running through a black matrix.  Considering the lack of “pizzazz” Manjiroite specimens generally have from other worldwide occurrences, these are really very nice examples of the mineral.  The quality and diversity of specimens from the Kalahari continues to be amazing!
 

ITEM
NUMBER
MI-

SPECIMEN SIZE
(INCHES)

SPECIMEN
PRICE

1447

1 1/4

3/4

1/8 – 3/8

SOLD

1102

1 1/8

7/8

1/2

SOLD

1103

1 3/8

1

3/4

SOLD

1104

2 1/8

1 1/2

1

SOLD

 

A.

B.
mi1101c.jpg (51966 bytes)
C.
mi1101d.jpg (35560 bytes)
E.

 

KOTTIGITE-PARASYMPLESITE
Mina Ojuela, Mapimi, Durango, Mexico

Köttigite was originally described from Schneeberg, Germany, and was reported to be pale pink to red in color.  The Mexican Köttigite is, in general, intermediate in composition between the ideal  Köttigite and Parasymplesite, and is most properly labeled as Köttigite-Parasymplesite.  The color ranges from pale blue, to grayish-blue.  In fact, the miners often refer to Köttigite as “blue Legrandite”, as it is sometimes found associated with Legrandite and of course this comparison to Legrandite has historically been an effort on the part of the miners over the years to get the highest prices for these specimens. Köttigite-Parasymplesite is decidedly rarer, however, than Legrandite.  The Mexico II special issue of the “Mineralogical Record” magazine, Vol. 34, No. 5, P. 68-69 has a very good description of the occurrence of K-P, and two color photographs.  All three specimens described below are exceptional under the microscope, as shown in the accompanying photos.

MI-2395 – Several hundred very sharp, blue-gray, single and double terminated individual xls. and radial xl. sprays of K-P, 3 to 5 mm in length, were very richly deposited over the surface of the matrix. The back of the matrix has about 25% coverage of the same radial sprays of K-P xls.  Micro xls. of colorless Gypsum are also present. Very nice specimen!

 MI-2396 – More than 100 radial sprays and individual terminated K-P crystals, 2 to 4 mm across, are completely covering the front-top of the matrix.   Many terminated xls. of  K-P were also deposited on the back of the specimen, and an unknown pale pink-white micro mineral replaces some of the K-P on the back of the specimen.  Minor Gypsum is associated.  Very nice example, very rich!

 MI-2397 – A triangle shaped, fan-like, crystal formation of K-P, 10 X 5 mm across, was deposited near the top-center of the specimen, formed in the center of a thin veinlet of red-brown Limonite gossan.   Under the Limonite gossan, the matrix is a thick vein section of pure white, micro crystalline-massive Calcite.  Minor amounts of Gypsum, gray-white botryoidal Smithsonite, colorless to pale yellow Adamite, and pale yellow Legrandite micro xls. are also present.

 

 ITEM NO.

SPECIMEN SIZE(INCHES)

SPECIMEN
PRICE

 

2395

2 3/8

1 3/4

1/4

$ 85.

 

2396

2 3/8

1 1/2

3/8

$ 90.

 

2397

2 1/4

2 1/8

7/8

$ 45.


2395

2396

2397

2395 Micro Photo

2396 Micro Photo

2397 Micro Photo

 

 

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