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1 item @ $125.00  

Mixed Minerals

Sunday, 22 August 2021 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including azurite, galena, kuksite, pyrochroite, schorl, and wulfenite and more from places like Tsumeb mine, Tsumeb, Namibia, Mex-Tex mine, Bingham, Socorro Co., New Mexico, United States, Black Pine mine, Philipsburg, Granite Co., Montana, United States, Långban, Filipstad, Värmland, Sweden, Gunheath China Clay Pit, St. Austell, Cornwall, England, and Mina Ojuela, Mapimi, Durango, Mexico.

Azurite

with Malachite - #56397
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
Cu3(CO3)2(OH)2 
Availability
Available
Price
$50.00
Size
6 x 4 x 4 cm - Sm Cabinet 
Tagged
carbonate , copper  

This simple specimen of Azurite and Malachite is full of vugs hosting numerous micro crystals of Malachite. There are several areas which contain rich blue and lustrous Azurite in 1cm fanned out crystals and acicular replacements of Malachite. There are also several good Cerussite crystals. 


Azurite

Formula
Cu3(CO3)2(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Tabular, Prismatic, Stalactitic 
Cleavage
Perfect, Fair, None 
Luster
Vitreous (Glassy) 
Color
azure blue, blue, light blue, dark blue 
Streak
light blue 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
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Galena

#AH56395
Locality
Mex-Tex mine, Bingham, Socorro Co., New Mexico, United States 
Formula
PbS 
Availability
Available
Price
$35.00
Size
3.5 x 2.5 x 3.5 cm - Miniature 
Tagged
sulfide  

Handsome specimen of a trio of cubic Galena crystals with a dull coating of Anglesite (thank Bob W.) associated with a little Fluorite.


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 
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Kuksite

with Segnitite & Theisite - #56355
Locality
Black Pine mine, Philipsburg, Granite Co., Montana, United States 
Formula
Pb3Zn3Te6+O6(PO4)2 
Availability
Available
Price
$125.00
Size
3 x 2 x 1.5 cm - Thumbnail 
Tagged
phosphate , tellurium  

Kuksite is a very rare tellurium mineral with lead and zinc in the structure. It occurs at four deposits worldwide. Although very small, on the order of 0.3mm, this specimen is loaded with fine pearly white crystals of Kuksite. In different areas on the specimen are greenish-yellow crystals of Segnitite as shown in the sixth photo. The Theisite is shown on the last photo at the orange arrow.


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
Mineralpedia
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Pyrochroite

#BC52612
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
Mn2+(OH)2 
Availability
Available
Price
$275.00
Size
5.5 x 4 x 4 cm - Sm Cabinet 

This Pyrochroite crystals on this specimen are the shiny black crystals. Many are excellent large crystals to over 4mm. It is a superb specimen from this famous mineral deposit.


Pyrochroite

Formula
Mn2+(OH)2 
Crystal System
Trigonal 
Crystal Habit
Foliated 
Cleavage
Perfect, None, None 
Luster
Adamantine 
Color
colorless, white, pale green, blue, dark brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Flexible 
Hardness
2.5-3 

Schorl

#PD56386
Locality
Gunheath China Clay Pit, St. Austell, Cornwall, England 
Formula
NaFe2+3Al6(BO3)3Si6O18(OH)4 
Availability
Available
Price
$30.00
Size
6 x 4 x 2 cm - Sm Cabinet 

This is just a locality specimen with crystals of Schorl to 2cm.


Schorl

Formula
NaFe2+3Al6(BO3)3Si6O18(OH)4 
Crystal System
Trigonal 
Crystal Habit
Acicular, Prismatic, Striated 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
black, brownish black, greenish black, bluish black 
Streak
brown 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Brittle - Conchoidal 
Hardness
7.5 
Collection
Don Phillips Collection
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Wulfenite

with Mimetite - #56366
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
PbMoO4 
Availability
Available
Price
$65.00
Size
6.5 x 5 x 3.5 cm - Sm Cabinet 

Extremely elongated dipyramidal Wulfenite crystals to 1.5cm. Cool specimen.


Wulfenite

Formula
PbMoO4 
Crystal System
Tetragonal 
Crystal Habit
Tabular, Pyramidal 
Cleavage
Imperfect, None, None 
Luster
Resinous - Greasy 
Color
orange yellow, waxy yellow, yellowish gray, olive green, brown 
Streak
yellowish white 
Class
Tetragonal - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
Mineralpedia
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