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The Arnold Hampson Collection

Friday, 04 October 2019 07:00 PM

Introducing the "The Arnold Hampson Collection" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including hubnerite, liebigite, linarite, malachite, molybdenite, and pyromorphite and more from places like Adams mine, Silverton, San Juan Co., Colorado, United States, Pitch mine, Marshall Pass dist., Saguache Co., Colorado, United States, Mex-Tex mine, Bingham, Socorro Co., New Mexico, United States, 79 mine, Gila Co., Arizona, United States, Questa Molybdenum mine, Questa, Red River dist., Taos Co., New Mexico, United States, and Hardshell mine, Santa Cruz Co., Arizona, United States.

Hubnerite

#AH51392
Locality
Adams mine, Silverton, San Juan Co., Colorado, United States 
Formula
Mn2+WO4 
Availability
Sold
Size
10 x 8 x 8 cm - Cabinet 

Large specimen with thick interlocked thin blades of Hubnerite. Collected by Arnold Hampson in 1980.


Hubnerite

Formula
Mn2+WO4 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Lamellar, Massive - Granular 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
brown, reddish brown, brownish black 
Streak
reddish brown 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
4.5 
Collection
Arnold G Hampson Collection
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Liebigite - AH51425
Liebigite - AH51425

Liebigite

#AH51425
Locality
Pitch mine, Marshall Pass dist., Saguache Co., Colorado, United States 
Formula
Ca2(UO2)(CO3)3·11H2
Availability
Sold
Size
2.2 x 1.8 x 1.1 cm - Thumbnail 
Special Info
Fluorescent 

Bright semi-translucent, superb crystals of Liebegite to 4mm. Excellent specimen. FL-UV


Liebigite

Formula
Ca2(UO2)(CO3)3·11H2
Crystal System
Orthorhombic 
Cleavage
Distinct, None, None 
Luster
Vitreous - Pearly 
Color
green, yellow green 
Streak
yellow white 
Class
Orthorhombic - Pyramidal 
Fracture
Brittle - Uneven 
Hardness
2.5-3 
Collection
Arnold G Hampson Collection
Special Info
Fluorescent
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Linarite

with Baryte - #AH51417
Locality
Mex-Tex mine, Bingham, Socorro Co., New Mexico, United States 
Formula
PbCuSO4(OH)2 
Availability
Price
$125.00
Size
6.5 x 5 x 3 cm - Sm Cabinet 
Tagged
copper  

Elongated deep blue Linarite crystals to 6mm lying flat on matrix, which was a former Galena cube 2.5cm across. Actually the Galena was probably superficially altered. The cube as seen is sandwiched between blades of Baryte. A great specimen


Linarite

Formula
PbCuSO4(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Platy, Encrustations 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous (Glassy) 
Color
sky blue, deep blue 
Streak
light blue 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
2.5 
Collection
Arnold G Hampson Collection
Mineralpedia
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Malachite

on Chrysocolla - #AH51414
Locality
79 mine, Gila Co., Arizona, United States 
Formula
Cu2CO3(OH)2 
Availability
Sold
Size
5 x 3 x 2.5 cm - Miniature 
Tagged
carbonate , copper  

3-6mm green balls of Malachite on light blue Chrysocolla. Good Malachite like this is rare for the 79 mine. This piece is no exception. The green is a little greener in the photos than in-hand from the digital process. It is still nonetheless a solid rich green color.


Malachite

Formula
Cu2CO3(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Botryoidal, Stalactitic, Massive - Fibrous 
Cleavage
Perfect, Fair, None 
Luster
Vitreous - Silky 
Color
green, dark green, blackish green 
Streak
light green 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
3.5-4 
Collection
Arnold G Hampson Collection
Mineralpedia
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Molybdenite - AH51410
Molybdenite - AH51410

Molybdenite

#AH51410
Locality
Questa Molybdenum mine, Questa, Red River dist., Taos Co., New Mexico, United States 
Formula
MoS2 
Availability
Sold
Size
7 x 4.5 x 5 cm - Sm Cabinet 
Tagged
sulfide  

Bluish silvery Molybdenite in a thin 2mm sheet (vein) across the surface of this specimen. It was collected by Hampson in 1967. The Quest Moly mine is about 3-4 miles east of the town of Questa is Taos Mountains of the of the Sangre de Cristo range at the far north-central side of New Mexico. It went into production in 1912 and is now a super-fund site. 


Molybdenite

Formula
MoS2 
Crystal System
Hexagonal 
Crystal Habit
Foliated, Massive, Disseminated 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
black, lead gray, gray 
Streak
greenish gray 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Sectile 
Hardness
Collection
Arnold G Hampson Collection

Pyromorphite

#AH51408
Locality
Hardshell mine, Santa Cruz Co., Arizona, United States 
Formula
Pb5(PO4)3Cl 
Availability
Sold
Size
4 x 3 x 1.5 cm - Miniature 
Tagged
phosphate  

A small miniature Pyromorphite with nice micro crystals.


Pyromorphite

Formula
Pb5(PO4)3Cl 
Crystal System
Hexagonal 
Crystal Habit
Crystals short to long prismatic, acicular, often hoppered terminations, rarely tabular to equant; radiating to branching groups, tapering to a point. Commonly rounded, globular, reniform, botryoidal. 
Cleavage
On {1011}, interrupted 
Luster
Resinous to subadamantine 
Color
Dark grass-green, green, yellow, yellow-orange, reddish orange, yellow-brown, brown, tan, grayish, may be colorless 
Streak
White 
Geological Setting
A secondary mineral in the oxidized zone of lead deposits 
Class
Hexagonal, 6/m - Dipyramidal 
Fracture
Uneven to subconchoidal 
Hardness
3.5–4 
Collection
Arnold G Hampson Collection

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