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0 item @ $0.00  

Langban & Harstigen

Tuesday, 30 May 2017 06:30 PM

Somewhat kin to Franklin in terms of geology and mineralization, this area is also famous for its rare species. We will have some older material available. It's in short supply!

SOLD
Barytocalcite - PD38552
Barytocalcite - PD38552

Barytocalcite

with Richterite - #PD38552
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
BaCa(CO3)2 
Availability
Sold
Size
4 x 3 x 2.5 cm - Miniature 
Tagged
carbonate  
Special Info
Fluorescent 
Special Info
XRD Confirmed 

Colorless or white cleavages on granular reddish brown Richterite. Both are fluorescent.


Barytocalcite

Formula
BaCa(CO3)2 
Crystal System
Monoclinic 
Crystal Habit
Druse, Massive - Granular, Prismatic 
Cleavage
Perfect, Perfect, Distinct 
Luster
Vitreous - Resinous 
Color
white, yellow, gray, greenish gray 
Streak
white 
Class
Monoclinic - Sphenoidal 
Fracture
Sub Conchoidal 
Hardness
Special Info
Fluorescent
Special Info
XRD Confirmed

Bergslagite

#46778
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
CaBeAsO4(OH) 
Availability
Sold
Size
4.5 x 2 x 2 cm - Miniature 
Tagged
arsenate , beryllium  
Special Info
Fluorescent 
Special Info
Type Locality 

Colorless crystal clusters of Bergslagite to 4mm in vug with yellow Svabite. Both are fluorescent.


Bergslagite

Formula
CaBeAsO4(OH) 
Crystal System
Monoclinic 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, gray, gray white, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
Special Info
Fluorescent
Special Info
Type Locality

Blatterite

#PD46951
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
Sb5+3Mn3+9Mn2+35(BO3)16O32 
Availability
Sold
Size
3.5 x 3 x 1.0 cm - Miniature 

Two rod-like crystals close to 1mm each in matrix.


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

Brandtite

#46010
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
Ca2Mn2+(AsO4)2·2H2
Availability
Available
Price
$355.00
Size
7 x 3.5 x 3 cm - Sm Cabinet 
Tagged
arsenate  

Superb specimen with colorless platy crystals of Brandtite crystals to 1mm at the black arrow. I do not know what the hemispherical, colorless crystals are...???

See prov. tab for label: Curtic Brandt ...


Brandtite

Formula
Ca2Mn2+(AsO4)2·2H2
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Striated, Radial 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
colorless, white 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
3.5 
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Brandtite

with Caryopilite & Rhodochrosite - #DS46931
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
Ca2Mn2+(AsO4)2·2H2
Availability
Available
Price
$325.00
Size
7 x 3.5 x 3.5 cm - Sm Cabinet 
Tagged
arsenate  
Special Info
XRD Confirmed 

Excellent specimen which has been tested by Dr. Pete Dunn by XRD. The crystals of Brandtite are 1-4mm in two seperate groups on botryoids of Rhodochrosite. There are minor yellow areas of massive Caryopilite.


Brandtite

Formula
Ca2Mn2+(AsO4)2·2H2
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Striated, Radial 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
colorless, white 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
3.5 
Collection
Shultz Collection
Special Info
XRD Confirmed
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SOLD
Bustamite - PD46958
Bustamite - PD46958

Bustamite

#PD46958
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
CaMn2+Si2O6 
Availability
Sold
Size
4.5 x 2.5 x 1.5 cm - Miniature 

Long, bladed pink crystals in matrix.


Bustamite

Formula
CaMn2+Si2O6 
Crystal System
Triclinic 
Cleavage
Perfect, Good, Good 
Luster
Vitreous (Glassy) 
Color
brown red, light pink, pink 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
5.5-6.5 
Collection
Phillips Collection
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