mineral specimens
rare minerals
mineral dealer
systematic minerals
Black Hills minerals
fine minerals
mineral dealer
Dana minerals
IMA minerals
mineral collections
rock and minerals
gem crystal
0 item @ $0.00  

Mixed Minerals

Sunday, 20 November 2022 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including cerchiaraite-(mn), cuprite, demesmaekerite, dugganite, ezcurrite, and galena and more from places like Cerchiara mine, Borghetto di Vara, La Spezia, Liguria, Italy, Daye iron mine, Tieshan dist., Huangshi, Hubei, China, Musonoi mine, Kolwezi, Shaba Cu belt, DR of Congo, Tombstone, Cochise Co., Arizona, United States, Tincalayu mine, Salta, Argentina, and Naica, Mun. de Saucillo, Chihuahua, Mexico.

Cerchiaraite-(Mn)

#59692
Locality
Cerchiara mine, Borghetto di Vara, La Spezia, Liguria, Italy 
Formula
Ba4Mn4O3(OH)3(Si4O12)[Si2O3(OH)4]Cl 
Availability
Available
Price
$65.00
Size
4 x 2.5 x 2.5 cm - Miniature 
Special Info
Type Locality 

Dark green crystal sprays and random acicular groups. Excellent specimen for this rare barium silicate.


Special Info
Type Locality

Cuprite

var. chalcotrichite - #AH59753
Locality
Daye iron mine, Tieshan dist., Huangshi, Hubei, China 
Formula
Cu1+2
Availability
Sold
Size
6 x 4.5 x 4.5 cm - Sm Cabinet 

Bright red Cuprite, variety chalcotrichite, forming acicular and reticulated crystals in groups to 5mm across in spongy limonitic matrix.


Cuprite

Formula
Cu1+2
Crystal System
Isometric 
Crystal Habit
Massive - Granular, Capillary 
Cleavage
Imperfect, None, None 
Luster
Adamantine 
Color
brown red, purple red, red, black 
Streak
brownish red 
Class
Isometric - Hexoctahedral 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Collection
Arnold G Hampson Collection
Mineralpedia
View Cuprite
On Dakota Matrix
Previously Sold Cuprite
On Dakota Matrix
Other Available Cuprite
WebMineral
View Cuprite
Mindat
View Cuprite

Demesmaekerite

#59688
Locality
Musonoi mine, Kolwezi, Shaba Cu belt, DR of Congo 
Formula
Pb2Cu5(UO2)2(Se4+O3)6(OH)6·2H2
Availability
Sold
Size
2.3 x 2 x 1.8 cm - Thumbnail 
Tagged
copper  
Special Info
Type Locality 

Olive green plates in a 3x5mm area on sulfide matrix. Ex. William Pinch with tag.


Demesmaekerite

Formula
Pb2Cu5(UO2)2(Se4+O3)6(OH)6·2H2
Crystal System
Triclinic 
Crystal Habit
Aggregates 
Cleavage
None, None, None 
Color
brown, brownish green, green, bottle green 
Class
Triclinic - Pinacoidal 
Hardness
3-4 
Special Info
Type Locality

Dugganite

#59706
Locality
Tombstone, Cochise Co., Arizona, United States 
Formula
Pb3Zn3(TeO6)(AsO4)2 
Availability
Sold
Size
1.2 x 0.8 x 0.4 cm - Thumbnail 
Tagged
tellurium  
Special Info
Type Locality 

Sugary green Dugganite around much of the little chip specimen.


Dugganite

Formula
Pb3Zn3(TeO6)(AsO4)2 
Crystal System
Hexagonal 
Cleavage
Indistinct, None, None 
Luster
Adamantine 
Color
colorless, green, white 
Streak
white 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Brittle 
Hardness
Special Info
Type Locality
Mineralpedia
View Dugganite
On Dakota Matrix
Previously Sold Dugganite
On Dakota Matrix
Other Available Dugganite
WebMineral
View Dugganite
Mindat
View Dugganite
SOLD
Ezcurrite - 59702
Ezcurrite - 59702

Ezcurrite

#59702
Locality
Tincalayu mine, Salta, Argentina 
Formula
Na2B5O7(OH)3·2H2
Availability
Sold
Size
2 x 1.2 x 0.5 cm - Thumbnail 
Special Info
Type Locality 

Ezcurrite is a rare borate found at only two localities according to Mindat. This specimen is compact prismatic and is milky white to colorless and translucent. 


Ezcurrite

Formula
Na2B5O7(OH)3·2H2
Crystal System
Triclinic 
Cleavage
Perfect, Good, None 
Luster
Vitreous - Silky 
Color
colorless 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
3-3.5 
Special Info
Type Locality

Galena

with Fluorite - #59650
Locality
Naica, Mun. de Saucillo, Chihuahua, Mexico 
Formula
PbS 
Availability
Sold
Size
9.5 x 7 x 4.5 cm - Cabinet 
Tagged
sulfide  

A cabinet specimen which is quite appealing with cubo-octahedral crystals to 8mm. Every crystal is shows nice metallic luster, sharp, and well-defined. Also on the specimen are water clear, faint green cubes of Fluorite. Overall excellent, sits naturally well and showy with no damage.


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 
Mineralpedia
View Galena
On Dakota Matrix
Previously Sold Galena
On Dakota Matrix
Other Available Galena
WebMineral
View Galena
Mindat
View Galena

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2022 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map