mineral specimens
rare minerals
mineral dealer
systematic minerals
Black Hills minerals
fine minerals
mineral dealer
Dana minerals
IMA minerals
mineral collections
rock and minerals
gem crystal
1 item @ $40.00  

Colorado Plateau Minerals

Saturday, 13 January 2024 05:30 PM

The Colorado Plateau encompasses a large area of the southwest including Arizona, Colorado, New Mexico and Utah. Many of these minerals are formed in roll front uranium deposits. They can be bright yellow or orange and beautiful to see under the microscope.

Swamboite-(Nd)

#AH61138
Locality
Jomac mine, San Juan Co., Utah, United States 
Formula
Nd0.333[(UO2)(SiO3OH)](H2O)~2.5 
Availability
Sold
Size
4.5 x 2.5 x 2 cm - Miniature 
Tagged
REE mineral  
Special Info
Radioactive!! 

Yellow groups of Swamboite crystals to about 0.3mm covering face.


Swamboite-(Nd)

Collection
Arnold G Hampson Collection
Special Info
Radioactive!!

Volborthite

#AH63190
Locality
Monument #1 mine, Navajo Co., Arizona, United States 
Formula
Cu3V2O7(OH)2·2H2
Availability
Available
Price
$95.00
Size
4.5 x 2.8 x 2.3 cm - Miniature 
Tagged
copper , vanadium  
Special Info
XRD Confirmed 
Special Info
Raman 

Beautiful grass green rosettes to about 0.5mm.


Volborthite

Formula
Cu3V2O7(OH)2·2H2
Crystal System
Monoclinic 
Crystal Habit
Globular, Scaly 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
brownish yellow, greenish yellow, yellow, yellow green, light brown 
Streak
light green 
Class
Monoclinic - Prismatic 
Hardness
Collection
Arnold G Hampson Collection
Special Info
XRD Confirmed
Special Info
Raman

Volborthite

#AH63192
Locality
Monument #1 mine, Navajo Co., Arizona, United States 
Formula
Cu3V2O7(OH)2·2H2
Availability
Sold
Size
3.5 x 2.5 x 1.3 cm - Miniature 
Tagged
copper , vanadium  
Special Info
XRD Confirmed 
Special Info
Raman 

Excellent thin plated greenish yellow crystals to 1mm with Malachite. This is somewhat of a different form the other Volborthite in this gallery. Both were tested.


Volborthite

Formula
Cu3V2O7(OH)2·2H2
Crystal System
Monoclinic 
Crystal Habit
Globular, Scaly 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
brownish yellow, greenish yellow, yellow, yellow green, light brown 
Streak
light green 
Class
Monoclinic - Prismatic 
Hardness
Collection
Arnold G Hampson Collection
Special Info
XRD Confirmed
Special Info
Raman

Zippeite

with Grantsite - #BAC63184
Locality
Happy Jack mine, White Canyon, San Juan Co., Utah, United States 
Formula
K3(UO2)4(SO4)2O3(OH)·3H2
Availability
Sold
Size
5.5 x 2 x 4 cm - Sm Cabinet 
Special Info
Radioactive!! 

Bright yellow pulverulent masses with black undiscernable Grantsite. The green is an unidentified species. The matrix is probably Uraninite.


Zippeite

Formula
K3(UO2)4(SO4)2O3(OH)·3H2
Crystal System
Monoclinic 
Crystal Habit
Pulverulent, Encrustations 
Cleavage
Perfect, None, None 
Luster
Earthy (Dull) 
Color
yellow, golden yellow, orange red, reddish brown 
Streak
yellow white 
Class
Monoclinic - Prismatic 
Hardness
Collection
William & Anne Cook Collection
Special Info
Radioactive!!
Mineralpedia
View Zippeite
On Dakota Matrix
Previously Sold Zippeite
On Dakota Matrix
Other Available Zippeite
WebMineral
View Zippeite
Mindat
View Zippeite

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2024 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map