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0 item @ $0.00  

Mixed Minerals

Thursday, 07 February 2019 08:00 AM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including haynesite, hureaulite, jahnsite-(camnmg), lazulite, nevadaite, and nickenichite and more from places like Repete mine, San Juan Co., Utah, United States, Jocão pegmatite, Conselheiro Pena, Doce valley, Minas Gerais, Brazil, Tip Top mine, Custer Co., South Dakota, United States, Champion mine, Mono Co., California, United States, Gold Quarry mine, Eureka Co., Nevada, United States, and Tolbachik Volcano, Kamchatka, Russia.

SOLD
Haynesite - PD50211
Haynesite - PD50211

Haynesite

#PD50211
Locality
Repete mine, San Juan Co., Utah, United States 
Formula
(UO2)3(Se4+O3)2(OH)2·5H2
Availability
Sold
Size
4 x 3 x 1 cm - Miniature 
Tagged
selenium  
Special Info
Type Locality 

Yellow acicular crystals.


Haynesite

Formula
(UO2)3(Se4+O3)2(OH)2·5H2
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Acicular, Rosette 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
brownish yellow, amber 
Streak
white 
Class
Orthorhombic 
Hardness
1.5-2 
Collection
Don Phillips Collection
Special Info
Type Locality
Mineralpedia
View Haynesite
On Dakota Matrix
Previously Sold Haynesite
On Dakota Matrix
Other Available Haynesite
WebMineral
View Haynesite
Mindat
View Haynesite

Hureaulite

with Rockbridgeite - #12446
Locality
Jocão pegmatite, Conselheiro Pena, Doce valley, Minas Gerais, Brazil 
Formula
Mn2+5(PO4)2(PO3OH)2·4H2
Availability
Sold
Size
11 x 8 x 5 cm - Cabinet 
Tagged
phosphate , pegmatite mineral  

An excellent cabinet specimen loaded with pink, lustrous crystals to over 1cm. The base, or matrix, is dark black, compact fibrous Rockbridgeite.


Hureaulite

Formula
Mn2+5(PO4)2(PO3OH)2·4H2
Crystal System
Monoclinic 
Crystal Habit
Massive, Compact, Fibrous 
Cleavage
Distinct, None, None 
Luster
Vitreous - Greasy 
Color
red, white, grayish white, yellowish white, reddish white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness
Collection
Dr. Buford Nichols Collection
SOLD
Jahnsite-(CaMnMg) - BN50208
Jahnsite-(CaMnMg) - BN50208

Jahnsite-(Camnmg)

#BN50208
Locality
Tip Top mine, Custer Co., South Dakota, United States 
Formula
CaMn2+Mg2Fe3+2(PO4)4(OH)2·8H2
Availability
Sold
Size
9 x 6 x 4 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  
Special Info
Type Locality 

Dark reddish brown striated crystals of Jahnsite with good rich coverage on Quartz and Triphyllite.


Jahnsite-(Camnmg)

Formula
CaMn2+Mg2Fe3+2(PO4)4(OH)2·8H2
Crystal System
Monoclinic 
Cleavage
Good, None, None 
Luster
Vitreous - Adamantine 
Color
brown, purplish brown, yellow, yellow orange, greenish yellow 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
Collection
Dr. Buford Nichols Collection
Special Info
Type Locality
SOLD
Lazulite - 50180
Lazulite - 50180

Lazulite

#50180
Locality
Champion mine, Mono Co., California, United States 
Formula
MgAl2(PO4)2(OH)2 
Availability
Sold
Size
10 x 7 x 6.5 cm - Cabinet 
Tagged
phosphate  

Embedded blue crystals to 1.2cm.


Lazulite

Formula
MgAl2(PO4)2(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Massive - Granular, Pyramidal 
Cleavage
Indistinct, Indistinct, None 
Luster
Vitreous (Glassy) 
Color
blue, blue green, light blue, black blue 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
5-6 
Mineralpedia
View Lazulite
On Dakota Matrix
Previously Sold Lazulite
On Dakota Matrix
Other Available Lazulite
WebMineral
View Lazulite
Mindat
View Lazulite

Nevadaite

#47961
Locality
Gold Quarry mine, Eureka Co., Nevada, United States 
Formula
(Cu2+,□,Al,V3+)6[Al8(PO4)8F8](OH)2·22H2
Availability
Sold
Size
4.5 x 5 x 3 cm - Miniature 
Tagged
phosphate , copper  
Special Info
Type Locality 

Sky blue beads and clusters of Nevadaite with Fluellite on siliceous matrix.


Nevadaite

Formula
(Cu2+,[ ],Al,V3+)6[Al8(PO4)8F8](OH)2·22H2
Crystal System
Orthorhombic 
Crystal Habit
Radial, Crystalline - Fine, Acicular 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
pale green, turquoise 
Streak
pale powder blue 
Class
Orthorhombic - Disphenoidal 
Fracture
Conchoidal 
Hardness
Collection
Dr. Buford L. Nichols Collection
Special Info
Type Locality
Mineralpedia
View Nevadaite
On Dakota Matrix
Previously Sold Nevadaite
On Dakota Matrix
Other Available Nevadaite
WebMineral
View Nevadaite
Mindat
View Nevadaite

Nickenichite

#48311
Locality
Tolbachik Volcano, Kamchatka, Russia 
Formula
(Na,Ca,Cu)1.6(Mg,Fe3+,Al)3(AsO4)3 
Availability
Sold
Size
4.5 x 3 x 3 cm - Miniature 
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 

Beautiful deep azure blue micro crystals to about 1mm. This is the second worldwide occurence of this rare arsenate. Very rich specimen.

The exact locality is: Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption (Main Fracture), Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia


Nickenichite

Formula
(Na,Ca,Cu)1.6(Mg,Fe3+,Al)3(AsO4)3 
Crystal System
Monoclinic 
Crystal Habit
Prismatic 
Cleavage
Perfect, Good, Good 
Luster
Vitreous (Glassy) 
Color
greenish blue, light blue 
Class
Monoclinic - Prismatic 
Hardness
Special Info
XRD Confirmed
Special Info
EDS Confirmed

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