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Mixed Minerals

Saturday, 14 October 2017 08:00 AM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including anglesite, bismuth, copper, cordierite, jahnsite-(camnmg), and linnaeite and more from places like Tsumeb mine, Tsumeb, Namibia, Schneeberg dist., Erzgebirge, Saxony, Germany, Chino mine, Grant Co., New Mexico, United States, Ruttan Mine, Ruttan Lake, Rusty Lake dist., Manitoba, Canada, Tip Top mine, Custer Co., South Dakota, United States, and Musen, North Rhine-Westphalia, Germany.

Anglesite

with Galena - #RW47655
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
PbSO4 
Availability
Available
Price
$350.00
Size
10 x 8 x 8 cm - Cabinet 

This specimen is loaded with large orthorhombic-octahedral crystals measuring nearly 2cm on edge. Many of the crystals are 1 to 1.5cm on the front side. The backside has numerous crystals also but only to around 5mm. There are dendritic inclusions in the crystals of some sort, perhaps Silver. The matrix is massive, black Chalcocite. 

May cost extra to ship, depending upon where you live.


Anglesite

Formula
PbSO4 
Crystal System
Orthorhombic 
Crystal Habit
Granular, Stalactitic 
Cleavage
Good, Distinct, None 
Luster
Adamantine 
Color
blue, colorless, green, gray, yellow 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
2.5-3 
Collection
Robert J. Waidler Collection
Mineralpedia
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Previously Sold Anglesite
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Bismuth

#RW47650
Locality
Schneeberg dist., Erzgebirge, Saxony, Germany 
Formula
Bi 
Availability
Sold
Size
8 x 5.5 x 4.5 cm - Sm Cabinet 
Tagged
native element  

A heavy mass with scattered 1-3mm Bismuth crystals throughout. It is an old specimen with a cool old German label with a number on the tag matching a number on the specimen, see provenance tab.


Bismuth

Formula
Bi 
Crystal System
Trigonal 
Crystal Habit
Platy, Lamellar, Granular 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
silver white, pinkish white, red 
Streak
silver white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Uneven 
Hardness
2-2.5 
Collection
Robert J. Waidler Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Bismuth
On Dakota Matrix
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WebMineral
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Mindat
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Copper

ps after Azurite - #RW47668
Locality
Chino mine, Grant Co., New Mexico, United States 
Formula
Cu 
Availability
Available
Price
$75.00
Size
8 x 7 x 1.5 cm - Sm Cabinet 
Tagged
native element  

Interesting pseudomorph of Copper after Azurite. 


Copper

Formula
Cu 
Crystal System
Isometric 
Crystal Habit
Nodular, Arborescent 
Cleavage
None, None, None 
Luster
Metallic 
Color
brown, copper red, light pink, red 
Streak
rose 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
Collection
Robert J. Waidler Collection
Mineralpedia
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On Dakota Matrix
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Cordierite

with Chalcopyrite - #DO47682
Locality
Ruttan Mine, Ruttan Lake, Rusty Lake dist., Manitoba, Canada 
Formula
Mg2Al4Si5O18 
Availability
Available
Price
$1,250.00
Size
9 x 3 x 4.5 cm - Sm Cabinet 

A fine specimen with fabulous euhedral Cordierite crystals to 1.5cm in golden Chalcopyrite. The crystals are a deep dark bottle green color. It is sawed flat on the base. The mine is apparently a massive sulfide deposit in greenstone schist. A little known mine. I have never seen these prior to acquiring Don Owen's collection. 


Cordierite

Formula
Mg2Al4Si5O18 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Massive - Granular 
Cleavage
Poor, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, pale blue, violet, yellow, gray 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal 
Hardness
Collection
Don Owens Collection
SOLD
Jahnsite-(CaMnMg) - BN47685
Jahnsite-(CaMnMg) - BN47685

Jahnsite-(Camnmg)

#BN47685
Locality
Tip Top mine, Custer Co., South Dakota, United States 
Formula
CaMn2+Mg2Fe3+2(PO4)4(OH)2·8H2
Availability
Sold
Size
6 x 3 x 0.5 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  
Special Info
Type Locality 

There was a time in the distant past, when there was only one type of Jahnsite. There was no qualification to get into the Jahnsite club. These days there many Jahnsites, like the shrimp dishes in Forrest Gump. You never know what you'll get in a box of Jahnsite. You can look on Mindat for the types. Many of them occur at the Tip Top. We discovered a new one several years ago. This Jahnsite is the original, described by Paul Moore in the 1960's. It is a funny nut brown and striated. These are distinct, nice crystals to 4mm long, which is long for Jahnsite-(CaMnMg). The matrix is Quartz.


Jahnsite-(Camnmg)

Formula
CaMn2+Mg2Fe3+2(PO4)4(OH)2·8H2
Crystal System
Monoclinic 
Cleavage
Good, None, None 
Luster
Vitreous - Adamantine 
Color
brown, purplish brown, yellow, yellow orange, greenish yellow 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
Collection
Dr. Buford Nichols Collection
Special Info
Type Locality

Linnaeite

on Chalcopyrite - #RW47654
Locality
Musen, North Rhine-Westphalia, Germany 
Formula
Co2+Co3+2S4 
Availability
Sold
Size
7 x 6 x 5 cm - Sm Cabinet 
Tagged
sulfide  

Octahedral crystals to 2mm in clusters with good coverage around matrix with Chalcopyrite and perhaps other sulfides.


Linnaeite

Formula
Co2+Co3+2S4 
Crystal System
Isometric 
Crystal Habit
Crystalline - Fine, Encrustations, Granular 
Cleavage
Imperfect, None, None 
Luster
Metallic 
Color
violet gray, copper red, light gray, steel gray 
Streak
grayish black 
Class
Isometric - Hexoctahedral 
Fracture
Uneven 
Hardness
4.5-5.5 
Collection
Robert J. Waidler Collection
Mineralpedia
View Linnaeite
On Dakota Matrix
Previously Sold Linnaeite
On Dakota Matrix
Other Available Linnaeite
WebMineral
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Mindat
View Linnaeite

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