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Mixed Minerals

Friday, 30 December 2016 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including aenigmatite, baricite, bederite, carrollite, chalcopyrite, and colusite and more from places like Washington Pass, Okanogan Co., Washington, United States, Rapid Creek, Yukon Territory, Canada, El Peñón pegmatite, Nevados de Palermo, La Poma, Salta, Argentina, Kambove, Central area, Shaba, Congo, Butte dist., Silver Bow Co., Montana, United States.

Aenigmatite

#BM46051
Locality
Washington Pass, Okanogan Co., Washington, United States 
Formula
Na4(Fe2+10Ti2)O4[Si12O36
Availability
Available
Price
$25.00
Size
3 x 3 x 1.5 cm - Thumbnail 

Reddish brown sprays less than 1mm.


Aenigmatite

Formula
Na4(Fe2+10Ti2)O4[Si12O36
Crystal System
Triclinic 
Crystal Habit
Lamellar 
Cleavage
Perfect, None, None 
Luster
Subadamantine 
Color
brown, black 
Streak
reddish brown 
Class
Triclinic - Pinacoidal 
Hardness
5-6 
Collection
McConlogue Collection
SOLD
Baricite - BN46067
Baricite - BN46067

Baricite

#BN46067
Locality
Rapid Creek, Yukon Territory, Canada 
Formula
Mg3(PO4)2·8H2
Availability
Sold
Size
4 x 4 x 1.5 cm - Miniature 
Tagged
phosphate  
Special Info
Type Locality 

Light blue platy Baricite. It is a member of the Vivianite group. It is basically a Vivianite with magnesium. It is found in far less localities than Vivianite, but I can't help to wonder how many Vivianites are actually Baricite and just not identified correctly.


Baricite

Formula
Mg3(PO4)2·8H2
Crystal System
Monoclinic 
Cleavage
Perfect, None, None 
Color
colorless, light blue 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
1.5-2 
Collection
Dr. Buford L. Nichols Collection
Special Info
Type Locality
Mineralpedia
View Baricite
On Dakota Matrix
Previously Sold Baricite
On Dakota Matrix
Other Available Baricite
WebMineral
View Baricite
Mindat
View Baricite
SOLD
Bederite - BN46066
Bederite - BN46066

Bederite

#BN46066
Locality
El Peñón pegmatite, Nevados de Palermo, La Poma, Salta, Argentina 
Formula
Ca2Mn2+4Fe3+2(PO4)6·2H2
Availability
Sold
Size
Chip < 1cm 
Tagged
phosphate  
Special Info
Type Locality 

Extremely rare Bederite, an iron phosphate, 3mm crystal fragment.


Bederite

Formula
Ca2Mn2+4Fe3+2(PO4)6·2H2
Crystal System
Orthorhombic 
Crystal Habit
Massive, Nodular 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
very dark brown, black 
Streak
dark olive green 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Irregular 
Hardness
Collection
Dr. Buford L. Nichols Collection
Special Info
Type Locality
Mineralpedia
View Bederite
On Dakota Matrix
Previously Sold Bederite
On Dakota Matrix
Other Available Bederite
WebMineral
View Bederite
Mindat
View Bederite

Carrollite

#DS46050
Locality
Kambove, Central area, Shaba, Congo 
Formula
Cu1+Co2S4 
Availability
Available
Price
$35.00
Size
2.5 x 2 x 1.5 cm - Thumbnail 
Tagged
sulfide , copper  

A small group of grey tarnished Carrollite crystals with dodecahedral forms.


Carrollite

Formula
Cu1+Co2S4 
Crystal System
Isometric 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
gray, gray, copper red, light gray, steel 
Class
Isometric - Hexoctahedral 
Fracture
Conchoidal 
Hardness
4.5-5.5 
Collection
Shultz Collection

Chalcopyrite

replacing Covellite - #45879
Locality
Butte dist., Silver Bow Co., Montana, United States 
Formula
Cu1+Fe3+S2 
Availability
Sold
Size
6 x 5.5 x 7 cm - Sm Cabinet 
Tagged
sulfide , copper  

Platy mass of Covellite crystals replaced by Chalcopyrite. In some places you can see where some remnants of Covellite is still in place. An interesting specimen.


Chalcopyrite

Formula
Cu1+Fe3+S2 
Crystal System
Tetragonal 
Crystal Habit
Euhedral Crystals, Striated, Druse 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
brass yellow, honey yellow 
Streak
greenish black 
Class
Tetragonal - Scalenohedral 
Fracture
Brittle 
Hardness
3.5 
Collection
Chris van Laer Collection

Colusite

#45862
Locality
Butte dist., Silver Bow Co., Montana, United States 
Formula
Cu12V(Sb,As,Sn)3S16 
Availability
Sold
Size
5 x 4.5 x 2.5 cm - Miniature 
Tagged
sulfide , copper , tin , vanadium  

Brassy metallic mass. 


Colusite

Formula
Cu12V(Sb,As,Sn)3S16 
Crystal System
Isometric 
Crystal Habit
Massive - Granular 
Cleavage
None, None, None 
Luster
Metallic 
Color
bronze 
Streak
black 
Class
Isometric - Hextetrahedral 
Fracture
Brittle 
Hardness
3-4 
Collection
Chris van Laer Collection
On Dakota Matrix
Previously Sold Colusite
On Dakota Matrix
Other Available Colusite
WebMineral
View Colusite
Mindat
View Colusite

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