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Rare Minerals for Sale

Saturday, 23 November 2019 04:00 PM

Introducing the "Rare Minerals for Sale" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including samuelsonite, and vanadinite and more from places like Palermo mine, Groton, Grafton Co., New Hampshire, United States, and Mammoth mine, Tiger, Pinal Co., Arizona, United States.

Samuelsonite

#PD51840
Locality
Palermo mine, Groton, Grafton Co., New Hampshire, United States 
Formula
Ca9Mn2+4Al2(PO4)10(OH)2 
Availability
Available
Price
$350.00
Reduced Price
$175.00
Size
Capsule 
Tagged
phosphate , pegmatite mineral  
Special Info
Type Locality 
Special Info
Raman 

A few 1mm or less tranlucent and colorless crystal fragments of extremely rare Samuelsonite. These were confirmed by Raman.


Samuelsonite

Formula
Ca9Mn2+4Al2(PO4)10(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Striated 
Cleavage
Good, None, None 
Luster
Subadamantine 
Color
colorless 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
Collection
Phillips Collection
Special Info
Type Locality
Special Info
Raman

Vanadinite

#AH51795
Locality
Mammoth mine, Tiger, Pinal Co., Arizona, United States 
Formula
Pb5(VO4)3Cl 
Availability
Available
Price
$75.00
Size
4.5 x 4 x 3 cm - Miniature 
Tagged
vanadium  

This was labeled by Hampson as Mammoth mine, but I have my doubts. I'll let go as "Mammoth", but if you buy, you must keep it, if you later disagree with the locality. Hampson purchased the specimen from Charles Creekmur.  At any rate, nice hexagonal crystal to 2mm with an excellent red color. 


Vanadinite

Formula
Pb5(VO4)3Cl 
Crystal System
Hexagonal 
Crystal Habit
Globular, Prismatic, Nodular 
Cleavage
None, None, None 
Luster
Adamantine 
Color
brown, brownish yellow, brown red, colorless, yellow 
Streak
brownish yellow 
Class
Hexagonal - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Collection
Arnold G Hampson Collection

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