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1 item @ $125.00  

Three Little Pegmatites

Friday, 12 February 2021 08:00 AM

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

Laueite

#BN54996
Locality
Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany 
Formula
Mn2+Fe3+2(PO4)2(OH)2·8H2
Availability
Sold
Size
8 x 6 x 5 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  

Yellow, tabular Laueite crystals with inclined terminations. Fairly rich specimen.


Laueite

Formula
Mn2+Fe3+2(PO4)2(OH)2·8H2
Crystal System
Triclinic 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
yellow orange, honey brown, light brown 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
Collection
Dr. Buford Nichols Collection
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Laueite

with Strunzite and Rockbridgeite - #BN55003
Locality
Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany 
Formula
Mn2+Fe3+2(PO4)2(OH)2·8H2
Availability
Sold
Size
6.5 x 5 x 4 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  

Very rich specimen with good Laueite crystals to 0.75mm with strands and groups of yellowish Strunzite. Rockbridgeite is found in the matrix. 


Laueite

Formula
Mn2+Fe3+2(PO4)2(OH)2·8H2
Crystal System
Triclinic 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
yellow orange, honey brown, light brown 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
Collection
Dr. Buford Nichols Collection
Mineralpedia
View Laueite
On Dakota Matrix
Previously Sold Laueite
On Dakota Matrix
Other Available Laueite
WebMineral
View Laueite
Mindat
View Laueite

Laueite

with Pseudolaueite & Strunzite - #PD55049
Locality
Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany 
Formula
Mn2+Fe3+2(PO4)2(OH)2·8H2
Availability
Sold
Size
7 x 6 x 4 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  

Deep yellow crystals of Laueite crystals with inclined terminations. An old John Parnau label has Pseudolaueite occuring on the specimen, but it is hard to determine this. There is however, some good showings of straw-like Strunzite to 3mm.


Laueite

Formula
Mn2+Fe3+2(PO4)2(OH)2·8H2
Crystal System
Triclinic 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
yellow orange, honey brown, light brown 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
Mineralpedia
View Laueite
On Dakota Matrix
Previously Sold Laueite
On Dakota Matrix
Other Available Laueite
WebMineral
View Laueite
Mindat
View Laueite

Leucophosphite

with Jahnsite & Rockbridgeite - #55035
Locality
Tip Top mine, Custer Co., South Dakota, United States 
Formula
KFe3+2(PO4)2(OH)·2H2
Availability
Sold
Size
8 x 7 x 3 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  

A difficult subject to photo since there is such depth of field. The micro crystals number in the thousands, The yellowish crystals in the photos are mostly Leucophosphite but some are Jahnsites. They are all about the same size, which is tiny....about 0.3mm. Some are striated, and these are Jahnsite crystals. The remainder is acicular Rockbridgeite. There is also secondary green and formless Leucophosphite, which is a replacement of Triphylite.


Leucophosphite

Formula
KFe3+2(PO4)2(OH)·2H2
Crystal System
Monoclinic 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Dull 
Color
brown, brownish yellow, colorless, greenish, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
3.5 

Leucophosphite

#BN55037
Locality
Tip Top mine, Custer Co., South Dakota, United States 
Formula
KFe3+2(PO4)2(OH)·2H2
Availability
Sold
Size
10 x 8 x 6 cm - Cabinet 
Tagged
phosphate , pegmatite mineral  

A large 5 x 3cm "solution" cavity lined with 1-2mm Leucophosphite crystals and minor Tavorite or Jahnsite.


Leucophosphite

Formula
KFe3+2(PO4)2(OH)·2H2
Crystal System
Monoclinic 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Dull 
Color
brown, brownish yellow, colorless, greenish, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
3.5 
Collection
Dr. Buford Nichols Collection

Leucophosphite

with Jahnsite-(CaMnMg) - #BN55125
Locality
Tip Top mine, Custer Co., South Dakota, United States 
Formula
KFe3+2(PO4)2(OH)·2H2
Availability
Sold
Size
7 x 7 x 5 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  

Light purple crystals of Leucophosphite on a thick layer of brown Jahnsite crystals.


Leucophosphite

Formula
KFe3+2(PO4)2(OH)·2H2
Crystal System
Monoclinic 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Dull 
Color
brown, brownish yellow, colorless, greenish, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
3.5 
Collection
Dr. Buford Nichols Collection

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