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Mixed Minerals

Friday, 23 October 2020 07:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including acanthite, chalcocite, corundum, galena, hureaulite, and kuksite and more from places like Imiter mine, Anti-Atlas Mts., Dades Region, Morocco, Morenci mine, Greenlee Co., Arizona, United States, Statesville, Iredell Co., North Carolina, United States, Madan dist, Rhodope Mts, Smolyan Oblast, Bulgaria, Tip Top mine, Custer Co., South Dakota, United States, and Black Pine mine, Philipsburg, Granite Co., Montana, United States.

Acanthite

with Silver - #RW50536
Locality
Imiter mine, Anti-Atlas Mts., Dades Region, Morocco 
Formula
Ag2
Availability
Available
Price
$150.00
Size
12 x 6.5 x 4.5 cm - Cabinet 
Tagged
sulfide , silver  

Cabinet specimen composed of nearly entirely of silver sulfide, Acanthite. The crystals are incredibly large, to 1.3cm across, and forms Octahedral crystals. In the saddle and other places are fine wire Silver. 


Acanthite

Formula
Ag2
Crystal System
Monoclinic 
Crystal Habit
Blocky, Skeletal, Arborescent 
Cleavage
poor to none 
Luster
Metallic 
Color
lead gray, gray, iron black 
Streak
shining black 
Class
Monoclinic - Prismatic 
Fracture
Sectile 
Hardness
2-2.5 
Collection
Robert J. Waidler Collection
Mineralpedia
View Acanthite
On Dakota Matrix
Previously Sold Acanthite
On Dakota Matrix
Other Available Acanthite
WebMineral
View Acanthite
Mindat
View Acanthite

Chalcocite

#RW51177
Locality
Morenci mine, Greenlee Co., Arizona, United States 
Formula
Cu2
Availability
Sold
Size
8 x 4 x 5 cm - Sm Cabinet 
Tagged
copper , ore specimen  

Grey massive Chalcocite with other sulfides.


Chalcocite

Formula
Cu2
Crystal System
Monoclinic 
Crystal Habit
Massive, Granular, Euhedral Crystals 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
blue black, gray, black, black gray, steel gray 
Streak
grayish black 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
2.5-3 
Collection
Robert J. Waidler Collection

Corundum

var. ruby - #AH54249
Locality
Statesville, Iredell Co., North Carolina, United States 
Formula
Al2O3 
Availability
Sold
Size
6 x 5 x 6 cm - Sm Cabinet 

Ruby red large Corundum crystal at the center of a mica nodule. 


Corundum

Formula
Al2O3 
Crystal System
Trigonal 
Crystal Habit
Euhedral Crystals, Tabular, Prismatic 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
blue, red, yellow, brown, gray 
Streak
none 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Tough 
Hardness
Collection
Arnold G Hampson Collection
Mineralpedia
View Corundum
On Dakota Matrix
Previously Sold Corundum
On Dakota Matrix
Other Available Corundum
WebMineral
View Corundum
Mindat
View Corundum

Galena

#RW54296
Locality
Madan dist, Rhodope Mts, Smolyan Oblast, Bulgaria 
Formula
PbS 
Availability
Available
Price
$150.00
Size
12 x 8 x 6 cm - Cabinet 
Tagged
sulfide  

Brilliant and flashy Galena crystals to 1cm. Of course it is much better looking in-hand as you can rock it back and forth and watch it flash. The crystal faces are mirror-like. Many of the crystals have a small corner showing an octahedral face and one set of crystals show a stacked set resembling a staircase. Get it in-hand and you will love it.


Galena

Formula
PbS 
Crystal System
Isometric 
Crystal Habit
Euhedral Crystals, Massive - Granular, Massive 
Cleavage
Perfect, Perfect, Perfect 
Luster
Metallic 
Color
light lead gray, dark lead gray 
Streak
grayish black 
Class
Isometric - Hexoctahedral 
Fracture
Brittle 
Hardness
2.5 
Collection
Arnold G Hampson Collection
Mineralpedia
View Galena
On Dakota Matrix
Previously Sold Galena
On Dakota Matrix
Other Available Galena
WebMineral
View Galena
Mindat
View Galena

Hureaulite

with Leucophosphite, Jahnsite, Collinsite & Rockbridgeite - #BN54275
Locality
Tip Top mine, Custer Co., South Dakota, United States 
Formula
Mn2+5(PO4)2(PO3OH)2·4H2
Availability
Available
Price
$575.00
Size
12 x 11 x 10 cm - Cabinet 

A large cabinet specimen of hydrothermally altered parent Triphylite. On one side a large vug of 6 x 5cm is filled with dark pinkish red crystals of Hureaulite to at least 7mm. With the Hureaulite are great purple Leucophosphite crystals to 2mm. Large dark, dull black balls of Rockbridgeite also occur in this same vug. Most of the time Hureaulite from the Tip Top is a light pink, which is on the other side of this specimen. 

On the flip side is another vug  filled with light pink Hureaulite crystals to 1mm. These are associated with a light green Leucophosphite, which is a direct replacement of the Triphylite. But, a redeposited purple Leucophosphite fills the other half of the vug. That line of white crystals seen in the last photo is a group of Collinsite crystals less than 1mm in size. Yellow prismatic Jahnsite can be found along the fringes of the vug.

May cost extra to ship.


Hureaulite

Formula
Mn2+5(PO4)2(PO3OH)2·4H2
Crystal System
Monoclinic 
Crystal Habit
Massive, Compact, Fibrous 
Cleavage
Distinct, None, None 
Luster
Vitreous - Greasy 
Color
red, white, grayish white, yellowish white, reddish white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness
Collection
Dr. Buford Nichols Collection

Kuksite

with Philipsburgite - #54302
Locality
Black Pine mine, Philipsburg, Granite Co., Montana, United States 
Formula
Pb3Zn3Te6+O6(PO4)2 
Availability
Sold
Size
3.4 x 2.2 x 2.5 cm - Miniature 
Tagged
phosphate , tellurium  
Special Info
EDS Confirmed 

Large, deep green and lustrous Phlipburgite crystal balls to 3mm across. The Kuksite, like the pieces are pearly white rosettes and spheres to less than 0.3mm.  This is another excellent, rare, specimen with some Bayldonite and Pseudomalachite.


Kuksite

Formula
Pb3Zn3Te6+O6(PO4)2 
Crystal System
Orthorhombic 
Crystal Habit
Tabular 
Cleavage
Perfect, None, None 
Luster
Adamantine 
Color
gray 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
Special Info
EDS Confirmed
Mineralpedia
View Kuksite
On Dakota Matrix
Previously Sold Kuksite
On Dakota Matrix
Other Available Kuksite
WebMineral
View Kuksite
Mindat
View Kuksite

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