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0 item @ $0.00  

Mixed and Rare Minerals

Sunday, 11 February 2024 06:00 PM

Introducing the "Mixed and Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including chalcocite, creedite, cupropearceite, duftite, ekanite, and eucairite and more from places like Dzhezkazgan mine, Karagandy, Kazakhstan, Potosi mine, Santa Eulalia, Chihuahua, Mexico, Sarbay mine, Kostanay, Kazakhstan, Black Pine mine, Philipsburg, Granite Co., Montana, United States, Van Gordon Creek pros., Chickencoop Canyon, Tulare Co., California, United States Tulare Co., California, United States, and Skrikerum mine, Valdemarsvik, Östergötland, Sweden.

Chalcocite

#CL63233
Locality
Dzhezkazgan mine, Karagandy, Kazakhstan 
Formula
Cu2
Availability
Sold
Size
7 x 3 x 3 cm - Sm Cabinet 
Tagged
sulfide , copper  

Flat-lying silvery black striated crystals.


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
Chet S. Lemanski, Jr. Collection

Creedite

#BAC63227
Locality
Potosi mine, Santa Eulalia, Chihuahua, Mexico 
Formula
Ca3Al2(SO4)(OH)2F8·2H2
Availability
Sold
Size
2.5 x 2.2 x 1.3 cm - Thumbnail 

A fabulous set of lavendar crystals. The main crystal is 1cm and is nicely terminated. It is grown on a 1.5cm crystal.


Creedite

Formula
Ca3Al2(SO4)(OH)2F8·2H2
Crystal System
Monoclinic 
Crystal Habit
Granular, Radial, Prismatic 
Cleavage
Perfect, None, None 
Luster
Vitreous - Greasy 
Color
colorless, violet, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
3.5 
Collection
William & Anne Cook Collection
Mineralpedia
View Creedite
On Dakota Matrix
Previously Sold Creedite
On Dakota Matrix
Other Available Creedite
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Mindat
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Cupropearceite

#KR61958
Locality
Sarbay mine, Kostanay, Kazakhstan 
Formula
Cu(Cu,Ag)6Ag9As2S11 
Availability
Available
Price
$200.00
Size
Micromount 
Tagged
copper , silver  
Special Info
Type Locality 

Single, dull black, hexagonal crystal to 3mm.


Cupropearceite

Formula
Cu(Cu,Ag)6Ag9As2S11 
Crystal System
Trigonal 
Luster
Metallic 
Class
Trigonal - Hexagonal Scalenohedral 
Hardness
Collection
Kenneth Raabe Collection
Special Info
Type Locality

Duftite

on Quartz with Murdockite - #BAC63109
Locality
Black Pine mine, Philipsburg, Granite Co., Montana, United States 
Formula
PbCuAsO4(OH) 
Availability
Available
Price
$60.00
Size
2.3 x 1.5 x 1 cm - Thumbnail 
Tagged
arsenate , copper  

Green Duftite with probably shiny black Murdochite crystals coating Quartz crystals.


Duftite

Formula
PbCuAsO4(OH) 
Collection
William & Anne Cook Collection
Mineralpedia
View Duftite
On Dakota Matrix
Previously Sold Duftite
On Dakota Matrix
Other Available Duftite
WebMineral
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Mindat
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Ekanite

var. Uranoan - #REW63232
Locality
Van Gordon Creek pros., Chickencoop Canyon, Tulare Co., California, United States Tulare Co., California, United States 
Formula
Ca2ThSi8O20 
Availability
Sold
Size
1.8 x 1.3 x 1.1 cm - Thumbnail 

Tiny, less than 0.5mm, glassy brown crystals with one yellowish Titanite crystal.


Ekanite

Formula
Ca2ThSi8O20 
Crystal System
Tetragonal 
Crystal Habit
Acicular 
Cleavage
Distinct, None, None 
Luster
Vitreous (Glassy) 
Color
green, yellow, dark red 
Streak
white 
Class
Tetragonal - Trapezohedral 
Fracture
Brittle - Uneven 
Hardness
4.5 
Collection
Robert E. Walstrom collection
On Dakota Matrix
Previously Sold Ekanite
On Dakota Matrix
Other Available Ekanite
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Mindat
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Eucairite

#KR61965
Locality
Skrikerum mine, Valdemarsvik, Östergötland, Sweden 
Formula
CuAgSe 
Availability
Sold
Size
6 x 4.5 x 3 cm - Sm Cabinet 
Tagged
copper , selenium , silver  
Special Info
Type Locality 

Dull black Eucairite with great coverage with Calcite. Comes with an old Stockholm Museum label, see prov. tab. Ex. Albert Kidwell with label obtained in 1961.


Eucairite

Formula
CuAgSe 
Crystal System
Orthorhombic 
Crystal Habit
Aggregates 
Cleavage
None, None, None 
Luster
Metallic 
Color
bronze, bronze, gray, silver white, tin white 
Streak
gray white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Subconchoidal 
Hardness
2.5 
Collection
Kenneth Raabe Collection
Special Info
Type Locality
Mineralpedia
View Eucairite
On Dakota Matrix
Previously Sold Eucairite
On Dakota Matrix
Other Available Eucairite
WebMineral
View Eucairite
Mindat
View Eucairite

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