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0 item @ $0.00  

Langban Rare Minerals, Sweden

Friday, 28 March 2014 05:00 PM

Langban is one of the richest mineral deposits on Earth. We'll throw out many, many varieties of rare minerals.

Hedyphane

#PD35920
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
Ca2Pb3(AsO4)3Cl 
Availability
Sold
Size
6.5 x 4 x 3 cm - Sm Cabinet 
Tagged
arsenate  
Special Info
Type Locality 

Another one of those interesting asbestos hedyphane. This one has white crystalline Hedyphane with compact fibrous asbestos hedyphane. SOme Braunite.


Hedyphane

Formula
Ca2Pb3(AsO4)3Cl 
Crystal System
Hexagonal 
Crystal Habit
Massive - Granular, Crystalline - Coarse 
Cleavage
Imperfect, None, None 
Luster
Adamantine - Resinous 
Color
blue, gray white, yellowish white, white 
Streak
white 
Class
Hexagonal - Dipyramidal 
Fracture
Uneven 
Hardness
4-5 
Collection
Phillips Collection
Special Info
Type Locality
Mineralpedia
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Hedyphane

#PD38570
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
Ca2Pb3(AsO4)3Cl 
Availability
Sold
Size
5.5 x 4 x 3.5 cm - Sm Cabinet 
Tagged
arsenate  
Special Info
Fluorescent 
Special Info
Type Locality 

The white crystalline areas are all Hedyphane, a common arsenate at Langban. It is type locality for the mineral and is fluorescent.


Hedyphane

Formula
Ca2Pb3(AsO4)3Cl 
Crystal System
Hexagonal 
Crystal Habit
Massive - Granular, Crystalline - Coarse 
Cleavage
Imperfect, None, None 
Luster
Adamantine - Resinous 
Color
blue, gray white, yellowish white, white 
Streak
white 
Class
Hexagonal - Dipyramidal 
Fracture
Uneven 
Hardness
4-5 
Collection
Phillips Collection
Special Info
Fluorescent
Special Info
Type Locality
Mineralpedia
View Hedyphane
On Dakota Matrix
Previously Sold Hedyphane
On Dakota Matrix
Other Available Hedyphane
WebMineral
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Mindat
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Hedyphane

with asbestos - #PD38585
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
Ca2Pb3(AsO4)3Cl 
Availability
Sold
Size
8 x 6.5 x 4.5 cm - Sm Cabinet 
Tagged
arsenate  
Special Info
Type Locality 

A most interesting specimen having a large crystalline mass of light purple or lilac Hedyphane which seems to phase into what is called 'asbeshedyfan' or asbestos hedyphane as Bollmark et al describes in the Langban book on page 125. The description in the book seems to correlate well with this and the other specimen like it in this Special Edition. Ex. Krantz with tag. The tag mentions Mimetite, which is doubtful.


Hedyphane

Formula
Ca2Pb3(AsO4)3Cl 
Crystal System
Hexagonal 
Crystal Habit
Massive - Granular, Crystalline - Coarse 
Cleavage
Imperfect, None, None 
Luster
Adamantine - Resinous 
Color
blue, gray white, yellowish white, white 
Streak
white 
Class
Hexagonal - Dipyramidal 
Fracture
Uneven 
Hardness
4-5 
Collection
Phillips Collection
Special Info
Type Locality
Mineralpedia
View Hedyphane
On Dakota Matrix
Previously Sold Hedyphane
On Dakota Matrix
Other Available Hedyphane
WebMineral
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Mindat
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Hematolite

#PD38565
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
(Mn2+,Mg,Al)15(As3+O3)(As5+O4)2(OH)23 
Availability
Sold
Size
5.5 x 2.5 x 3 cm - Sm Cabinet 
Tagged
arsenate  

Curious looking orange, golden brown plates less than 1mm but scattered over face.


Hematolite

Formula
(Mn2+,Mg,Al)15(As3+O3)(As5+O4)2(OH)23 
Crystal System
Trigonal 
Crystal Habit
Tabular 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
blood red, brown red, black, black red 
Streak
brown red 
Class
Trigonal - Pyramidal 
Fracture
Brittle - Uneven 
Hardness
3.5 
Collection
Phillips Collection

Hisingerite

#PD38564
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
Fe3+2Si2O5(OH)4·2H2
Availability
Sold
Size
5 x 4.5 x 3.5 cm - Miniature 

Not much to this mineral. It's a hrydrated iron silicate with a jet black, vitreous luster. This specimen looks close to an obsidian, dark glassy, crystalline mass.


Hisingerite

Formula
Fe3+2Si2O5(OH)4·2H2
Crystal System
Monoclinic 
Crystal Habit
Acicular, Massive, Compact 
Cleavage
None, None, None 
Luster
Greasy (Oily) 
Color
brownish black, black 
Streak
yellowish brown 
Class
Monoclinic 
Fracture
Conchoidal 
Hardness
Collection
Phillips Collection

Inesite

#PD38732
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
Ca2Mn2+7Si10O28(OH)2·5H2
Availability
Sold
Size
5 x 3 x 3 cm - Miniature 

Pink platy, compact crystals in matrix.


Inesite

Formula
Ca2Mn2+7Si10O28(OH)2·5H2
Crystal System
Triclinic 
Crystal Habit
Radial, Massive - Fibrous, Spherical 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
brown, brown, pink, orange 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Brittle - Uneven 
Hardness
Collection
Phillips Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Inesite
On Dakota Matrix
Other Available Inesite
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Mindat
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