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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.

Blatterite

with Romeite - #PD38730
Locality
Nordmark, Filipstad, Värmland, Sweden 
Formula
Sb5+3Mn3+9Mn2+35(BO3)16O32 
Availability
Sold
Size
Chip < 1cm 
Special Info
Type Locality 

Black, striated crystal to 1mm with brownish red crystal grains of Romeite. Note that this is not from Langban but from Nordmark. A very rare antimony borate.


Blatterite

Formula
Sb5+3Mn3+9Mn2+35(BO3)16O32 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
black 
Streak
brown 
Class
Orthorhombic - Dipyramidal 
Hardness
Collection
Phillips Collection
Special Info
Type Locality

Caryinite

#PD38550
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
(Na,Pb)(Ca,Na)CaMn2+2(AsO4)3 
Availability
Sold
Size
4.5 x 4 x 3.5 cm - Miniature 
Tagged
arsenate  
Special Info
Type Locality 

Orange massive and crystalline Caryinite.


Caryinite

Formula
(Na,Pb)(Ca,Na)CaMn2+2(AsO4)3 
Crystal System
Monoclinic 
Crystal Habit
Cleaveable, Massive - Granular 
Cleavage
Distinct, Distinct, None 
Luster
Greasy (Oily) 
Color
brown, yellow brown 
Streak
light brown 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness
Collection
Phillips Collection
Special Info
Type Locality
Mineralpedia
View Caryinite
On Dakota Matrix
Previously Sold Caryinite
On Dakota Matrix
Other Available Caryinite
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Mindat
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Caryinite

with "schefferite" - #PD38566
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
(Na,Pb)(Ca,Na)CaMn2+2(AsO4)3 
Availability
Sold
Size
6 x 3.5 x 4 cm - Sm Cabinet 
Tagged
arsenate  
Special Info
Type Locality 

Deep very compact reddish brown rich mass (white arrow) with bright orange diopside called  "schefferite" at the yellow arrow.  It's only found in three worldwide localities and falls within the alluaudite group, a large group of mostly sodium arseantes and phosphates.


Caryinite

Formula
(Na,Pb)(Ca,Na)CaMn2+2(AsO4)3 
Crystal System
Monoclinic 
Crystal Habit
Cleaveable, Massive - Granular 
Cleavage
Distinct, Distinct, None 
Luster
Greasy (Oily) 
Color
brown, yellow brown 
Streak
light brown 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness
Collection
Phillips Collection
Special Info
Type Locality
Mineralpedia
View Caryinite
On Dakota Matrix
Previously Sold Caryinite
On Dakota Matrix
Other Available Caryinite
WebMineral
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Mindat
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SOLD
Copper - PD38553
Copper - PD38553

Copper

#PD38553
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
Cu 
Availability
Sold
Size
3 x 2 x 1 cm - Thumbnail 
Tagged
native elem3ent  

A tiny bit of Copper leaf to 3mm in matrix.


Copper

Formula
Cu 
Crystal System
Isometric 
Crystal Habit
Nodular, Arborescent 
Cleavage
None, None, None 
Luster
Metallic 
Color
brown, copper red, light pink, red 
Streak
rose 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
Collection
Phillips Collection
Mineralpedia
View Copper
On Dakota Matrix
Previously Sold Copper
On Dakota Matrix
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Mindat
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Diopside

var. schefferite - #PD38576
Locality
Långban, Filipstad, Värmland, Sweden 
Availability
Sold
Size
6 x 4 x 4 cm - Sm Cabinet 

Compact orange brown, granular "schefferite" a variety of Diopside.


Diopside

Formula
CaMgSi2O6 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Blocky, Granular 
Cleavage
Good, Indistinct, None 
Luster
Vitreous (Glassy) 
Color
blue, brown, colorless, green, gray 
Streak
white green 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Phillips Collection
Mineralpedia
View Diopside
On Dakota Matrix
Previously Sold Diopside
On Dakota Matrix
Other Available Diopside
WebMineral
View Diopside
Mindat
View Diopside

Ericssonite

#PD38731
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
BaFe3+Mn2+2O(Si2O7)(OH) 
Availability
Sold
Size
2 x 1.5 x 1 cm - Thumbnail 
Special Info
Type Locality 

Dark red crystal grains in matrix probably with Rhodonite.


Ericssonite

Formula
BaFe3+Mn2+2O(Si2O7)(OH) 
Crystal System
Monoclinic 
Crystal Habit
Massive, Platy 
Cleavage
Perfect, Distinct, None 
Luster
Sub Metallic 
Color
reddish black 
Streak
brown 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
4.5 
Collection
Phillips Collection
Special Info
Type Locality

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