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Mixed Minerals

Sunday, 14 March 2021 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including baryte, corvusite, cuprite, hellandite-(y), hubnerite, and hutchinsonite and more from places like Elk Creek, Meade Co., South Dakota, United States, Worcester mine, Uravan dist., Montrose Co., Colorado, United States, Ray mine, Pinal Co., Arizona, United States, Lindvikskollen quarry, Krager�, Vestfold og Telemark, Norway, Adams mine, Silverton, San Juan Co., Colorado, United States, and Quiruvilca mine, Santiago de Chuco prov., La Libertad dept., Peru.

Baryte

on Calcite - #55342
Locality
Elk Creek, Meade Co., South Dakota, United States 
Formula
BaSO4 
Availability
Available
Price
$35.00
Size
5 x 4.5 x 3 cm - Miniature 

A small but nice 9mm golden Baryte crystal with yellow Calcite.


Baryte

Formula
BaSO4 
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Prismatic, Massive - Fibrous 
Cleavage
Perfect, Perfect, Imperfect 
Luster
Vitreous (Glassy) 
Color
white, yellowish white, grayish white, brownish white, dark brown 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
3-3.5 
Collection
Arnold G Hampson Collection
Mineralpedia
View Baryte
On Dakota Matrix
Previously Sold Baryte
On Dakota Matrix
Other Available Baryte
WebMineral
View Baryte
Mindat
View Baryte
SOLD
Corvusite - AH55321
Corvusite - AH55321

Corvusite

#AH55321
Locality
Worcester mine, Uravan dist., Montrose Co., Colorado, United States 
Formula
(Na,Ca,K)1-x(V5+,V4+,Fe2+)8O20·4H2
Availability
Sold
Size
6.5 x 6 x 3 cm - Sm Cabinet 
Tagged
vanadium  

Black Corvusite interstitial in sandstone matrix deposited by vanadium rich solutions in sandstone roll front depostits. There are probably other minerals within the matrix, including Carnotite.


Corvusite

Formula
(Na,Ca,K)1-x(V5+,V4+,Fe2+)8O20·4H2
Crystal System
Monoclinic 
Crystal Habit
Fibrous, Massive - Lamellar 
Luster
Earthy (Dull) 
Color
brown, bluish black, greenish black 
Streak
bluish black 
Class
Monoclinic - Prismatic 
Hardness
2.5-3 
Collection
Arnold G Hampson Collection

Cuprite

with Azurite - #AH55329
Locality
Ray mine, Pinal Co., Arizona, United States 
Formula
Cu1+2
Availability
Sold
Size
7.5 x 6 x 5.5 cm - Sm Cabinet 
Tagged
copper  

Red Cuprite, variety chalcotrichite, in branching micro crystals on Azurite crystals. This is a good scoping material.


Cuprite

Formula
Cu1+2
Crystal System
Isometric 
Crystal Habit
Massive - Granular, Capillary 
Cleavage
Imperfect, None, None 
Luster
Adamantine 
Color
brown red, purple red, red, black 
Streak
brownish red 
Class
Isometric - Hexoctahedral 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Collection
Arnold G Hampson Collection
Mineralpedia
View Cuprite
On Dakota Matrix
Previously Sold Cuprite
On Dakota Matrix
Other Available Cuprite
WebMineral
View Cuprite
Mindat
View Cuprite

Hellandite-(Y)

#AH55336
Locality
Lindvikskollen quarry, Krager�, Vestfold og Telemark, Norway 
Formula
(Ca3Y)Y2AlB4Si4O22(OH)2 
Availability
Sold
Size
8.5 x 7 x 5 cm - Sm Cabinet 
Tagged
REE mineral , pegmatite mineral  
Special Info
Type Locality 

White tablur crystals in Microcline-Schorl matrix. The crystals are up to 1.2cm and there are three of them.


Hellandite-(Y)

Formula
(Ca3Y)Y2AlB4Si4O22(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Prismatic 
Cleavage
Poor, Poor, None 
Luster
Vitreous - Greasy 
Color
green yellow, grayish black, reddish brown, black 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
5.5-6 
Collection
Arnold G Hampson Collection
Special Info
Type Locality

Hubnerite

#AH55339
Locality
Adams mine, Silverton, San Juan Co., Colorado, United States 
Formula
Mn2+WO4 
Availability
Sold
Size
8.5 x 9.5 x 3.5 cm - Cabinet 

Reddish brown plates of Hubnerite to 2.5cm.


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
Mineralpedia
View Hubnerite
On Dakota Matrix
Previously Sold Hubnerite
On Dakota Matrix
Other Available Hubnerite
WebMineral
View Hubnerite
Mindat
View Hubnerite

Hutchinsonite

with Orpiment - #AH55314
Locality
Quiruvilca mine, Santiago de Chuco prov., La Libertad dept., Peru 
Formula
PbTlAs5S9 
Availability
Sold
Size
4.5 x 2.5 x 2 cm - Miniature 

There are numerous very nice crystals of Hutchinsonite on this specimen to about 4mm. This specimen also includes very well-formed Orpiment crystals as orange sprays tucked in the mulitude of colorless Baryte crystals. It really is a fine specimen. 


Hutchinsonite

Formula
PbTlAs5S9 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Acicular 
Cleavage
Good, None, None 
Luster
Sub Metallic 
Color
cherry red, pink, black 
Streak
red 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
1.5-2 
Collection
Arnold G Hampson Collection

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