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0 item @ $0.00  

Mixed Minerals

Sunday, 30 May 2021 07:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including cerussite, eudialyte, hopeite, malachite, pyrargyrite and more from places like Tsumeb mine, Tsumeb, Namibia, Kvanefjeld Mt., Ilimaussaq complex, Narsaq, Kitaa prov., Greenland, Kabwe mine, Broken Hill, Kabwe dist., Central Province, Zambia, Luishia mine, Katanga, Democratic Republic of Congo , Uchucchacua mine, Oyon prov., Lima dept., Peru.

Cerussite

#55843
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
PbCO3 
Availability
Available
Price
$35.00
Size
4.5 x 3.5 x 3 cm - Miniature 
Tagged
carbonate  

Colorless, striated crystals from 2 to 8mm throughout specimen.


Cerussite

Formula
PbCO3 
Crystal System
Orthorhombic 
Crystal Habit
Reticulate, Massive - Granular, Crystalline - Coarse 
Cleavage
Distinct, Distinct, None 
Luster
Adamantine 
Color
colorless, white, gray, blue, green 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3-3.5 
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Eudialyte

#PD55881
Locality
Kvanefjeld Mt., Ilimaussaq complex, Narsaq, Kitaa prov., Greenland 
Formula
Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 
Availability
Available
Price
$25.00
Size
4.5 x 3 x 1.5 cm - Miniature 

Raspberry red crystalline mass.


Eudialyte

Formula
Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 
Crystal System
Trigonal 
Crystal Habit
Massive - Granular, Tabular 
Cleavage
Imperfect, None, None 
Luster
Vitreous (Glassy) 
Color
pinkish red, red, yellow, yellowish brown, violet 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Uneven 
Hardness
5-5.5 
Mineralpedia
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Hopeite

#WR55792
Locality
Kabwe mine, Broken Hill, Kabwe dist., Central Province, Zambia 
Formula
Zn3(PO4)2·4H2
Availability
Sold
Size
2.5 x 1.5 x 2 cm - Thumbnail 
Tagged
phosphate  

Several prismatic, striated crystals to 1.3cm all showing good terminations. Excellent specimen.


Hopeite

Formula
Zn3(PO4)2·4H2
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Reniform, Encrustations 
Cleavage
Perfect, Good, Poor 
Luster
Vitreous (Glassy) 
Color
colorless, gray white, yellow, white, light yellow 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
Mineralpedia
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Malachite

#WR55846
Locality
Luishia mine, Katanga, Democratic Republic of Congo  
Formula
Cu2CO3(OH)2 
Availability
Available
Price
$40.00
Size
8.5 x 6 x 4.5 cm - Sm Cabinet 
Tagged
carbonate , copper  

A chunk of banded Malachite.


Malachite

Formula
Cu2CO3(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Botryoidal, Stalactitic, Massive - Fibrous 
Cleavage
Perfect, Fair, None 
Luster
Vitreous - Silky 
Color
green, dark green, blackish green 
Streak
light green 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
3.5-4 
Collection
Willard L. Roberts Collection
Mineralpedia
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Pyrargyrite

with Quartz - #55162
Locality
Uchucchacua mine, Oyon prov., Lima dept., Peru 
Formula
Ag3SbS3 
Availability
Sold
Size
6 x 3.5 x 4 cm - Sm Cabinet 
Tagged
sulfide , silver  

Much of the exposed Pyrargyrite is largely massive but still shows numerous faces. There are also several crystals to 1mm. The whole mass of deep red Pyrargyrite is 3x3cm.


Pyrargyrite

Formula
Ag3SbS3 
Crystal System
Trigonal 
Crystal Habit
Massive, Crystalline - Poor, Prismatic 
Cleavage
Poor, None, None 
Luster
Sub Metallic 
Color
deep red, red gray 
Streak
cherry red 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Brittle - Conchoidal 
Hardness
2.5 

Pyrargyrite

with Quartz - #55166
Locality
Uchucchacua mine, Oyon prov., Lima dept., Peru 
Formula
Ag3SbS3 
Availability
Sold
Size
6 x 3 x 3.5 cm - Sm Cabinet 
Tagged
sulfide , silver  

Dark red well-formed crystals of Pyrargyrite to 3mm.


Pyrargyrite

Formula
Ag3SbS3 
Crystal System
Trigonal 
Crystal Habit
Massive, Crystalline - Poor, Prismatic 
Cleavage
Poor, None, None 
Luster
Sub Metallic 
Color
deep red, red gray 
Streak
cherry red 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Brittle - Conchoidal 
Hardness
2.5 

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