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
0 item @ $0.00  

Micromounts

Friday, 30 June 2023 01:30 PM

Introducing the "Micromounts" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including cyanotrichite, cyrilovite, diaboleite, duftite, francevillite, and gilalite and more from places like 3 Metals mine, Esmeralda Co., Nevada, United States, Iron Knob, South Australia, Australia, Mammoth mine, Tiger, Pinal Co., Arizona, United States, Mounana mine, Franceville, Haut-Ogooué, Gabon, and Christmas mine, Gila Co., Arizona, United States.

Cyanotrichite

#61893
Locality
3 Metals mine, Esmeralda Co., Nevada, United States 
Formula
Cu4Al2SO4(OH)12·2H2
Availability
Sold
Size
Micromount 
Tagged
copper  

Compact spheroidal Cyanotrichite with Chrysocolla.


Cyanotrichite

Formula
Cu4Al2SO4(OH)12·2H2
Crystal System
Orthorhombic 
Crystal Habit
Druse, Acicular, Spherical 
Cleavage
Good, None, None 
Luster
Silky 
Color
sky blue, light blue, dark blue 
Streak
pale blue 
Class
Orthorhombic 
Fracture
Uneven 
Hardness

Cyrilovite

#61808
Locality
Iron Knob, South Australia, Australia 
Formula
NaFe3+3(PO4)2(OH)4·2H2
Availability
Sold
Size
Micromount 
Tagged
phosphate  

Mustard yellow crystalline Cyrilovite. 


Cyrilovite

Formula
NaFe3+3(PO4)2(OH)4·2H2
Crystal System
Tetragonal 
Crystal Habit
Massive - Granular, Pseudo Cubic 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
yellow, orange yellow, brown 
Streak
yellow 
Class
Tetragonal - Trapezohedral 
Fracture
Uneven 
Hardness

Diaboleite

#61790
Locality
Mammoth mine, Tiger, Pinal Co., Arizona, United States 
Formula
CuPb2Cl2(OH)4 
Availability
Sold
Size
Micromount 
Tagged
copper  

The blue is stunning on this large (5x5mm) crystal of Diaboleite with overgrowths on the cube and several second generation crystals of Diaboleite. Overall it is 1.5 x 1.3cm.


Diaboleite

Formula
CuPb2Cl2(OH)4 
Crystal System
Tetragonal 
Crystal Habit
Euhedral Crystals, Encrustations, Granular 
Cleavage
Perfect, None, None 
Luster
Adamantine 
Color
dark blue, bright sky blue 
Streak
blue 
Class
Tetragonal - Ditetragonal Pyramidal 
Fracture
Conchoidal 
Hardness
2.5 

Duftite

#61813
Locality
3 Metals mine, Esmeralda Co., Nevada, United States 
Formula
PbCuAsO4(OH) 
Availability
Sold
Size
Micromount 
Tagged
arsenate , copper  

Light green Duftite crystals on blue Chrysocolla. 


Duftite

Formula
PbCuAsO4(OH) 
Mineralpedia
View Duftite
On Dakota Matrix
Previously Sold Duftite
On Dakota Matrix
Other Available Duftite
WebMineral
View Duftite
Mindat
View Duftite

Francevillite

#61802
Locality
Mounana mine, Franceville, Haut-Ogooué, Gabon 
Formula
Ba(UO2)2(VO4)2·5H2
Availability
Sold
Size
Micromount 
Tagged
vanadium  
Special Info
Radioactive!! 

Fantastic orange crystal groups to 3mm. Overall 10 x 8mm


Francevillite

Formula
Ba(UO2)2(VO4)2·5H2
Crystal System
Orthorhombic 
Cleavage
Perfect, None, None 
Luster
Adamantine - Pearly 
Color
brownish yellow, yellow, yellow green 
Streak
light yellow 
Class
Orthorhombic - Dipyramidal 
Hardness
Special Info
Radioactive!!

Gilalite

#61816
Locality
Christmas mine, Gila Co., Arizona, United States 
Formula
Cu5Si6O17·7H2
Availability
Sold
Size
Micromount 
Tagged
copper  
Special Info
Type Locality 

Little green balls of Gilalite covering most of matrix with minor Kinoite.


Gilalite

Formula
Cu5Si6O17·7H2
Crystal System
Monoclinic 
Crystal Habit
Spherical, Radial, Fibrous 
Color
blue green, green 
Streak
light green 
Class
Monoclinic 
Hardness
Special Info
Type Locality
Mineralpedia
View Gilalite
On Dakota Matrix
Previously Sold Gilalite
On Dakota Matrix
Other Available Gilalite
WebMineral
View Gilalite
Mindat
View Gilalite

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