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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.

Arrojadite-(Kfe)

#BN55011
Locality
Palermo mine, Groton, Grafton Co., New Hampshire, United States 
Formula
(KNa)Fe2+(CaNa2)Fe2+13Al(PO4)11(PO3OH)(OH)2 
Availability
Sold
Size
3.5 x 3 x 3 cm - Miniature 
Tagged
phosphate , pegmatite mineral  

Yellowish green granular Arrojadite with possible Moreasite.


Arrojadite-(Kfe)

Formula
(KNa)Fe2+(CaNa2)Fe2+13Al(PO4)11(PO3OH)(OH)2 
Crystal System
Monoclinic 
Class
Monoclinic - Domatic 
Hardness
Collection
Dr. Buford Nichols Collection

Beraunite

#BN55005
Locality
Palermo mine, Groton, Grafton Co., New Hampshire, United States 
Formula
Fe2+Fe3+5(PO4)4(OH)5·6H2
Availability
Sold
Size
5.5 x 5 x 4 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  

Beautiful fibrous sprays of golden Beraunite lining a 2cm vug.


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
Collection
Dr. Buford Nichols Collection
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Previously Sold Beraunite
On Dakota Matrix
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Beraunite

#PD55065
Locality
Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany 
Formula
Fe2+Fe3+5(PO4)4(OH)5·6H2
Availability
Sold
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
Previously Sold Beraunite
On Dakota Matrix
Other Available Beraunite
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Mindat
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SOLD
Beraunite - BN55120
Beraunite - BN55120

Beraunite

with Laueite - #BN55120
Locality
Palermo mine, Groton, Grafton Co., New Hampshire, United States 
Formula
Fe2+Fe3+5(PO4)4(OH)5·6H2
Availability
Sold
Size
3.5 x 3 x 2 cm - Miniature 
Tagged
phosphate , pegmatite mineral  

Green to brown fibrous Beraunite lining an 8mm vug.


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
Collection
Dr. Buford Nichols Collection
Mineralpedia
View Beraunite
On Dakota Matrix
Previously Sold Beraunite
On Dakota Matrix
Other Available Beraunite
WebMineral
View Beraunite
Mindat
View Beraunite

Brazilianite

in Quartz - #BN55010
Locality
Palermo mine, Groton, Grafton Co., New Hampshire, United States 
Formula
NaAl3(PO4)2(OH)4 
Availability
Sold
Size
4.5 x 3.5 x 3.5 cm - Miniature 
Tagged
phosphate , pegmatite mineral  

1-2mm colorless Brazilianite crystals showing good euhedral forms in a 2cm vug in Quartz.


Brazilianite

Formula
NaAl3(PO4)2(OH)4 
Crystal System
Monoclinic 
Crystal Habit
Spherical, Euhedral Crystals 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, greenish yellow, yellow green, light yellow 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
5.5 
Collection
Dr. Buford Nichols Collection

Childrenite

on Whitlockite - #BN55013
Locality
Palermo mine, Groton, Grafton Co., New Hampshire, United States 
Formula
Fe2+AlPO4(OH)2·H2
Availability
Sold
Size
3.5 x 3.5 x 2 cm - Miniature 
Tagged
phosphate , pegmatite mineral  

Whitlockite crystals with complex faces to 3mm with 1mm Childrenite. There are also 0.75mm waterclear and very complex Whitlockite crystals in other vugs.


Childrenite

Formula
Fe2+AlPO4(OH)2·H2
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Tabular, Platy 
Cleavage
Imperfect, None, None 
Luster
Vitreous - Resinous 
Color
white, yellowish brown, brownish black 
Streak
white 
Class
Orthorhombic - Pyramidal 
Fracture
Conchoidal - Uneven 
Hardness
4.5-5 
Collection
Dr. Buford Nichols Collection

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