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0 item @ $0.00  

Mixed Minerals

Friday, 31 July 2020 08:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including cerussite, chondrodite, cinnabar, columbite-(fe), and elbaite and more from places like Tsumeb mine, Tsumeb, Namibia, Tiger, Pinal Co., Arizona, United States, Limecrest quarry, Sussex Co., New Jersey, United States, Tongren mine, Tongren Pref., Guizhou Province, China, Minas Gerais, Brazil, and Nevel quarry, Newry, Oxford Co., Maine, United States.

Cerussite

#WR53827
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
PbCO3 
Availability
Available
Price
$125.00
Size
8 x 6.5 x 3 cm - Sm Cabinet 
Tagged
carbonate  

Excellent showy  specimen with glassy, vitreous and striated crystals to 2.7cm. There are many smallery crystals of perfection. The largest crystal has a small, fairly non-visible piece missing. Otherwise, it is in great shape. 

Willard Roberts' label, see prov. tab. 


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 
Collection
Willard L. Roberts Collection
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Cerussite

with Anglesite & Wulfenite - #AH53834
Locality
Tiger, Pinal Co., Arizona, United States 
Formula
PbCO3 
Availability
Sold
Size
8 x 6 x 3.5 cm - Sm Cabinet 
Tagged
carbonate  

Reticulated, twinned Cerussite crystals to 1cm, abundant, with dark grey Anglesite (formless) and orange Wulfenite with Mimetite.


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 
Collection
Arnold G Hampson Collection
Mineralpedia
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Chondrodite

Norbergite with Graphite - #AH53774
Locality
Limecrest quarry, Sussex Co., New Jersey, United States 
Formula
Mg5(SiO4)2F2 
Availability
Sold
Size
9.5 x 5 x 2 cm - Cabinet 

Yellow crystal grains to 2mm with Graphite crystals.


Chondrodite

Formula
Mg5(SiO4)2F2 
Crystal System
Monoclinic 
Crystal Habit
Crystalline - Fine, Massive - Granular 
Cleavage
Good, None, None 
Luster
Vitreous - Greasy 
Color
yellow, orange, brownish white, reddish white, greenish white 
Streak
gray 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
6-6.5 
Collection
Arnold G Hampson Collection

Cinnabar

on Dolomite - #AH53775
Locality
Tongren mine, Tongren Pref., Guizhou Province, China 
Formula
HgS 
Availability
Sold
Size
7 x 3 x 3 cm - Sm Cabinet 
Tagged
sulfide  

Cherry red lustrous crystals to 6mm on white Dolomite. The contrast between the red Cinnabar and white Dolomite is stricking. Chineese label, see prov. tab.


Cinnabar

Formula
HgS 
Crystal System
Trigonal 
Crystal Habit
Druse, Disseminated, Massive 
Cleavage
Perfect, None, None 
Luster
Adamantine 
Color
lead gray, brown, brown pink, vermilion, gray 
Streak
bright red 
Class
Trigonal - Trapezohedral 
Fracture
Brittle - Sectile 
Hardness
2-2.5 
Collection
Arnold G Hampson Collection
Mineralpedia
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Columbite-(Fe)

#WR53809
Locality
Minas Gerais, Brazil 
Formula
Fe2+Nb2O6 
Availability
Sold
Size
4.5 x 3 x 1.5 cm - Miniature 

Thick tabular black crystal of Columbite showing faces on all sides except the detachment point.


Columbite-(Fe)

Formula
Fe2+Nb2O6 
Crystal System
Orthorhombic 
Crystal Habit
Massive - Granular, Striated 
Cleavage
Distinct, None, None 
Luster
Sub Metallic 
Color
black, brownish black 
Streak
blackish brown 
Class
Orthorhombic - Dipyramidal 
Fracture
Sub Conchoidal 
Hardness
Collection
Willard L. Roberts Collection

Elbaite

in Muscovite - #AH53788
Locality
Nevel quarry, Newry, Oxford Co., Maine, United States 
Formula
Na(Al1.5Li1.5)Al6(BO3)3Si6O18(OH)4 
Availability
Sold
Size
19 x 17 x 12 cm - Cabinet 

LARGE cabinet specimen with apple green Elbaite tourmaline crystals to 10cm long and 2cm wide in Muscovite.

Because of the size and weight of the specimen, an additional charge is calculated into the shipping cost. Exact costs will be determined at the post office and a refund or a request for more funds will be issued.


Elbaite

Formula
Na(Al1.5Li1.5)Al6(BO3)3Si6O18(OH)4 
Crystal System
Trigonal 
Crystal Habit
Striated, Prismatic 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
blue, colorless, green, yellow, white 
Streak
white 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Sub Conchoidal 
Hardness
7.5 
Collection
Arnold G Hampson Collection
Mineralpedia
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On Dakota Matrix
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