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Recently Released New Additions

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, calaverite, cornetite, feruvite, ikranite, and macdonaldite and more from places like Swanson mine, Middlesex Co., Connecticut, United States, Cripple Creek dist., Teller Co., Colorado, United States, L'Etoile du Congo mine, Lubumbashi, Haut-Katanga, DR Congo, Anjanabonoina peg., Betafo dist., Vakinankaratra, Madagascar, Mt. Karnasurt, Lovozero Massif, Kola Peninsula, Russia, and Baumann prospect, Tulare Co., California, United States.

Albite - DL64370
Albite - DL64370

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
7 
Collection
Dr. David London Collection
Mineralpedia
View Albite
On Dakota Matrix
Previously Sold Albite
On Dakota Matrix
Other Available Albite
WebMineral
View Albite
Mindat
View Albite
Calaverite - JD64877
Calaverite - JD64877

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
Mineralpedia
View Calaverite
On Dakota Matrix
Previously Sold Calaverite
On Dakota Matrix
Other Available Calaverite
WebMineral
View Calaverite
Mindat
View Calaverite
Cornetite - BN65052
Cornetite - BN65052

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
WebMineral
View Cornetite
Mindat
View Cornetite
Feruvite - BAC64056
Feruvite - BAC64056

Feruvite

#BAC64056
Locality
Anjanabonoina peg., Betafo dist., Vakinankaratra, Madagascar 
Formula
CaFe2+3(Al5Mg)(BO3)3Si6O18(OH)3F 
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)3F 
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
7 
Collection
William & Anne Cook Collection
On Dakota Matrix
Previously Sold Feruvite
On Dakota Matrix
Other Available Feruvite
WebMineral
View Feruvite
Mindat
View Feruvite
Ikranite - BAC65055
Ikranite - BAC65055

Ikranite

#BAC65055
Locality
Mt. Karnasurt, Lovozero Massif, Kola Peninsula, Russia 
Formula
(Na,H3O)15(Ca,Mn,REE)6Fe3+2Zr3Si24O66(O,OH)6Cl·nH2O 
Availability
Available
Price
$150.00
Size
.3 x .2 x .2 cm - Thumbnail 
Special Info
Type Locality 

Orange crystalline mass. Extremely rare. Small specimen! Ex. Excalibur mineral.


Ikranite

Formula
(Na,H3O)15(Ca,Mn,REE)6Fe3+2Zr3Si24O66(O,OH)6Cl·nH2O 
Crystal System
Trigonal 
Crystal Habit
Pseudo Hexagonal 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
brownish yellow 
Streak
yellowish white 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Brittle - Conchoidal 
Hardness
5 
Collection
William & Anne Cook Collection
Special Info
Type Locality
On Dakota Matrix
Previously Sold Ikranite
On Dakota Matrix
Other Available Ikranite
WebMineral
View Ikranite
Mindat
View Ikranite
Macdonaldite - REW65085
Macdonaldite - REW65085

Macdonaldite

#REW65085
Locality
Baumann prospect, Tulare Co., California, United States 
Formula
BaCa4Si16O36(OH)2·10H2O 
Availability
Available
Price
$25.00
Size
5 x 4 x 2.5 cm - Miniature 

Radiating white crystal groups.


Macdonaldite

Formula
BaCa4Si16O36(OH)2·10H2O 
Crystal System
Orthorhombic 
Crystal Habit
Acicular 
Cleavage
Perfect, Good, Indistinct 
Luster
Vitreous - Silky 
Color
colorless, white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Hardness
3.5-4 
Collection
Robert E. Walstrom collection
Mineralpedia
View Macdonaldite
On Dakota Matrix
Previously Sold Macdonaldite
On Dakota Matrix
Other Available Macdonaldite
WebMineral
View Macdonaldite
Mindat
View Macdonaldite

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