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Three Little Pegmatites

Friday, 12 February 2021 08:00 AM

Three famous phosphate loaded pegmatites - The Palermo, Hagendorf, and Tip Top Pegmatites.

Beraunite

#PD55065
Locality
Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany 
Formula
Fe2+Fe3+5(PO4)4(OH)5·6H2
Availability
Available
Price
$20.00
Size
6.5 x 5 x 2 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  

Compact brownish red bands of Beraunite.


Beraunite

Formula
Fe2+Fe3+5(PO4)4(OH)5·6H2
Crystal System
Monoclinic 
Crystal Habit
Druse, Radial, Globular 
Cleavage
Good, None, None 
Luster
Vitreous - Dull 
Color
green, greenish brown, gray green, dark greenish brown, dark red 
Streak
green brown 
Class
Monoclinic - Prismatic 
Hardness
Mineralpedia
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On Dakota Matrix
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On Dakota Matrix
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Mindat
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Scholzite

and/or Parascholzite - #BN54995
Locality
Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany 
Formula
CaZn2(PO4)2·2H2
Availability
Available
Price
$275.00
Size
7 x 6 x 7 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  

A very rich specimen loaded with 1-2mm bladed and prismatic crystals of Scholzite (stubby prismatic with nearly square cross-sections) and Parascholzite (long, prismatic, more bladed). These descriptions are very generalized, but are based on photos from two books: "Hagendorf" by J. Kastning and J. Schluter and "Palermo" by Whitmore and Lawrence.  The descriptions on Mindat more or less follow these descriptions. At the Tip Top mine, Parascholzite crystals are also long and bladed. Having said that, the specimen should be analyzed (XRD) to determine which is which.


Scholzite

Formula
CaZn2(PO4)2·2H2
Crystal System
Orthorhombic 
Cleavage
Parting, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, gray white, white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
Collection
Dr. Buford Nichols Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Scholzite
On Dakota Matrix
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Mindat
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Scholzite

#PD55043
Locality
Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany 
Formula
CaZn2(PO4)2·2H2
Availability
Available
Price
$35.00
Size
1.5 x 1.5 x 1.5 cm - Thumbnail 
Tagged
phosphate , pegmatite mineral  

A small specimen with 3mm bladed Scholzite crystals.


Scholzite

Formula
CaZn2(PO4)2·2H2
Crystal System
Orthorhombic 
Cleavage
Parting, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, gray white, white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
Mineralpedia
View Scholzite
On Dakota Matrix
Previously Sold Scholzite
On Dakota Matrix
Other Available Scholzite
WebMineral
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Mindat
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Triploidite

#BN54999
Locality
Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany 
Formula
Mn2+2(PO4)(OH) 
Availability
Available
Price
$35.00
Size
7 x 6 x 4 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  

For what this is worth, I thought I would throw it out and post it. It does not resemble Triploidite from other localities. Further, Triploidite has not yet been reported from Hagendorf. It is dark reddish brown and black and is probably Rosckbridgeite and Triphylite.

Note the old lable in the prov. tab.


Triploidite

Formula
Mn2+2(PO4)(OH) 
Crystal System
Monoclinic 
Crystal Habit
Fibrous, Columnar 
Cleavage
Perfect, None, None 
Luster
Vitreous - Greasy 
Color
greenish, yellow, yellow brown, pink, reddish brown 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal - Uneven 
Hardness
4.5-5 
Collection
Dr. Buford Nichols Collection

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