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Rare Minerals for the Collector

Sunday, 15 December 2024 06:00 PM

Introducing the "Rare Minerals for the Collector" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including albite, antlerite, calaverite, cornetite, feruvite, and gold and more from places like Swanson mine, Middlesex Co., Connecticut, United States, Chuquicamata mine, El Loa Prov., Antofagasta, Chile, Cripple Creek dist., Teller Co., Colorado, United States, L'Etoile du Congo mine, Lubumbashi, Haut-Katanga, DR Congo, Anjanabonoina peg., Betafo dist., Vakinankaratra, Madagascar, and Fire Creek mine, Lander Co., Nevada, United States.

Albite

with Quartz - #DL64370
Locality
Swanson mine, Middlesex Co., Connecticut, United States 
Formula
NaAlSi3O8 
Availability
Available
Price
$45.00
Size
7.5 x 6 x 5 cm - Sm Cabinet 
Tagged
pegmatite mineral  

Cut section of pegmatite rock showing the swirling nature of yellow Albite, variety cleavelandite. Also present is smoky Quartz and Muscovite .


Albite

Formula
NaAlSi3O8 
Crystal System
Triclinic 
Crystal Habit
Blocky, Striated, Granular 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
white, gray, greenish gray, bluish green, gray 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Uneven 
Hardness
Collection
Dr. David London Collection
Mineralpedia
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Previously Sold Albite
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Other Available Albite
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Antlerite

#JD65088
Locality
Chuquicamata mine, El Loa Prov., Antofagasta, Chile 
Formula
Cu2+3SO4(OH)4 
Availability
Sold
Size
2 x 1.5 x 1 cm - Thumbnail 
Tagged
copper  

Terrific glassy green perfent crystals.


Antlerite

Formula
Cu2+3SO4(OH)4 
Crystal System
Orthorhombic 
Crystal Habit
Acicular, Concretionary, Reniform 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
green, light green, emerald green, black, black green 
Streak
pale green 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
Collection
John Dagenais Collection
Mineralpedia
View Antlerite
On Dakota Matrix
Previously Sold Antlerite
On Dakota Matrix
Other Available Antlerite
WebMineral
View Antlerite
Mindat
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Calaverite

with Fluorite - #JD64877
Locality
Cripple Creek dist., Teller Co., Colorado, United States 
Formula
AuTe2 
Availability
Available
Price
$75.00
Size
4 x 4 x 3 cm - Miniature 
Tagged
tellurium , gold  

Long bladed striated crystals in vugs.


Calaverite

Formula
AuTe2 
Crystal System
Monoclinic 
Crystal Habit
Striated, Massive, Crystalline - Fine 
Cleavage
None, None, None 
Luster
Metallic 
Color
yellow, yellowish white 
Streak
green 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
2.5 
Collection
John Dagenais Collection

Cornetite

#BN65052
Locality
L'Etoile du Congo mine, Lubumbashi, Haut-Katanga, DR Congo 
Formula
Cu3PO4(OH)3 
Availability
Available
Price
$325.00
Size
16 x 9.5 x 2.5 cm - Cabinet 
Tagged
phosphate , copper  

Large plate covered by hundreds of lustrous blue crystals of Cornetite from 0.5mm to 5mm. Both sides are covered. Exceptional specimen.


Cornetite

Formula
Cu3PO4(OH)3 
Crystal System
Orthorhombic 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
greenish blue, dark blue 
Streak
blue 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
4.5 
Collection
Dr. Buford Nichols Collection
Mineralpedia
View Cornetite
On Dakota Matrix
Previously Sold Cornetite
On Dakota Matrix
Other Available Cornetite
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View Cornetite
Mindat
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Feruvite

#BAC64056
Locality
Anjanabonoina peg., Betafo dist., Vakinankaratra, Madagascar 
Formula
CaFe2+3(Al5Mg)(BO3)3Si6O18(OH)3
Availability
Available
Price
$65.00
Size
1.8 x 1.6 x 1 cm - Thumbnail 

Dark green to black crystal set nicely terminated.


Feruvite

Formula
CaFe2+3(Al5Mg)(BO3)3Si6O18(OH)3
Crystal System
Trigonal 
Crystal Habit
Prismatic, Striated 
Cleavage
None, None, None 
Luster
Vitreous - Dull 
Color
brownish black, dark brown, black 
Streak
gray 
Class
Trigonal - Ditrigonal Pyramidal 
Hardness
Collection
William & Anne Cook Collection
On Dakota Matrix
Previously Sold Feruvite
On Dakota Matrix
Other Available Feruvite
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Mindat
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Gold

#65048
Locality
Fire Creek mine, Lander Co., Nevada, United States 
Formula
Au 
Availability
Sold
Size
3.3 x 1.6 x 1.6 cm - Miniature 
Tagged
native element  

Needles and wires of Gold crystals throughout spongy matrix. Excellent piece.


Gold

Formula
Au 
Crystal System
Isometric 
Crystal Habit
Arborescent, Platy, Granular 
Cleavage
None, None, None 
Luster
Metallic 
Color
yellow, pale yellow, orange, yellow white, reddish white 
Streak
yellow 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
Mineralpedia
View Goldmanite
On Dakota Matrix
Previously Sold Gold
On Dakota Matrix
Other Available Gold
WebMineral
View Gold
Mindat
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