Recently Released Special Editions
Rare Mineral Species of Langban & Harstigen, Sweden
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
Kentrolite
- Sold
- Add to Favorites
- Locality
- Långban, Filipstad, Värmland, Sweden
- Formula
- Pb2Mn3+2O2(Si2O7)
- Availability
- Sold
- Size
- 6 x 3.5 x 2.5 cm - Sm Cabinet
1-3mm rounded crystal grains with deep red internal reflections. Very rich specimen.
Kentrolite
- Formula
- Pb2Mn3+2O2(Si2O7)
- Crystal System
- Orthorhombic
- Crystal Habit
- Prismatic, Crystalline - Fine, Wheat Sheaf
- Cleavage
- Distinct, None, None
- Luster
- Sub Metallic
- Color
- dark reddish brown, reddish black
- Streak
- dark brown
- Class
- Orthorhombic - Dipyramidal
- Fracture
- Brittle
- Hardness
- 5
- Collection
- Shultz Collection
- On Dakota Matrix
- Previously Sold Kentrolite
- On Dakota Matrix
- Other Available Kentrolite
- WebMineral
- View Kentrolite
- Mindat
- View Kentrolite
SOLD
Magnetoplumbite
- Sold
- Add to Favorites
- Locality
- Långban, Filipstad, Värmland, Sweden
- Formula
- PbFe3+12O19
- Availability
- Sold
- Size
- 6.5 x 5 x 2 cm - Sm Cabinet
- Special Info
- Type Locality
Black grains of Magnetoplumbite to 4mm.
Magnetoplumbite
- Formula
- PbFe3+12O19
- Crystal System
- Hexagonal
- Crystal Habit
- Massive - Granular
- Cleavage
- Good, None, None
- Luster
- Metallic
- Color
- grayish black, black
- Streak
- dark brown
- Class
- Hexagonal - Dihexagonal Dipyramidal
- Hardness
- 6
- Collection
- Shultz Collection
- Special Info
- Type Locality
- Mineralpedia
- View Magnetoplumbite
- On Dakota Matrix
- Previously Sold Magnetoplumbite
- On Dakota Matrix
- Other Available Magnetoplumbite
- WebMineral
- View Magnetoplumbite
- Mindat
- View Magnetoplumbite
SOLD
Melanotekite
- Sold
- Add to Favorites
- Locality
- Långban, Filipstad, Värmland, Sweden
- Formula
- Pb2Fe3+2O2Si2O7
- Availability
- Sold
- Size
- 3 x 3.5 x 1.5 cm - Miniature
- Special Info
- Type Locality
Black, dull, ugly mass.
Melanotekite
- Formula
- Pb2Fe3+2O2Si2O7
- Crystal System
- Orthorhombic
- Crystal Habit
- Massive, Prismatic
- Cleavage
- Good, None, None
- Luster
- Sub Metallic
- Color
- black, blackish gray
- Streak
- greenish
- Class
- Orthorhombic - Disphenoidal
- Hardness
- 6.5
- Collection
- Shultz Collection
- Special Info
- Type Locality
- Mineralpedia
- View Melanotekite
- On Dakota Matrix
- Previously Sold Melanotekite
- On Dakota Matrix
- Other Available Melanotekite
- WebMineral
- View Melanotekite
- Mindat
- View Melanotekite
SOLD
Molybdophyllite
- Sold
- Add to Favorites
- Locality
- Långban, Filipstad, Värmland, Sweden
- Formula
- Pb2Mg2Si2O7(OH)2
- Availability
- Sold
- Size
- 3 x 2.5 x 2 cm - Thumbnail
Rich specimen with several excellent colorless plates of Molybdophyllite to 3mm. The specimen is from the Natural History Museum of Riksmuseet with a note on the back stating that it was collected by KJ Finnenman...
Molybdophyllite
- Formula
- Pb2Mg2Si2O7(OH)2
- Crystal System
- Hexagonal
- Crystal Habit
- Massive - Lamellar
- Cleavage
- Perfect, None, None
- Luster
- Vitreous - Pearly
- Color
- colorless, pale green, pale yellow
- Streak
- white
- Class
- Hexagonal - Trapezohedral
- Hardness
- 3-4
- Mineralpedia
- View Molybdophyllite
- On Dakota Matrix
- Previously Sold Molybdophyllite
- On Dakota Matrix
- Other Available Molybdophyllite
- WebMineral
- View Molybdophyllite
- Mindat
- View Molybdophyllite
