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  

Mixed Minerals

Friday, 11 November 2022 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including friedelite, gold, ludjibaite, luetheite, pectolite, and pyrite and more from places like Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States, Harvard mine, Jamestown, Tuolumne Co., California, United States, Atwood mine, Hidalgo Co., New Mexico, Untited States, Humboldt mine, Patagonia dist., Santa Cruz Co., Arizona, United States, Prospect Park, Passaic Co., New Jersey, United States, and Isle of Elba, Italy.

Friedelite

#AH59365
Locality
Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States 
Formula
Mn2+8Si6O15(OH)10 
Availability
Available
Price
$60.00
Size
3 x 1.5 x 2 cm - Thumbnail 

Textbook free-standing peach colored Friedelite crystals to 1mm.


Friedelite

Formula
Mn2+8Si6O15(OH)10 
Crystal System
Monoclinic 
Crystal Habit
Massive, Tabular 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
brown, brown red, yellow, light pink, dark red 
Streak
pink 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness
4-5 
Collection
Arnold G Hampson Collection

Gold

#58811
Locality
Harvard mine, Jamestown, Tuolumne Co., California, United States 
Formula
Au 
Availability
Sold
Notes
Discounts/Promos do NOT apply to this item
Size
2.5 x 2.3 x 1.5 cm - Thumbnail 
Tagged
native element  

Gold on white Quartz in an area of 2 x 1.5cm. 


Gold

Formula
Au 
Crystal System
Isometric 
Crystal Habit
Arborescent, Platy, Granular 
Cleavage
None, None, None 
Luster
Metallic 
Color
yellow, pale yellow, orange, yellow white, reddish white 
Streak
yellow 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
Mineralpedia
View Goldmanite
On Dakota Matrix
Previously Sold Gold
On Dakota Matrix
Other Available Gold
WebMineral
View Gold
Mindat
View Gold

Ludjibaite

#59265
Locality
Atwood mine, Hidalgo Co., New Mexico, Untited States 
Formula
Cu5(PO4)2(OH)4 
Availability
Available
Price
$85.00
Size
3 x 2.5 x 2 cm - Thumbnail 
Tagged
phosphate , copper  

Dark green groups of spheroidal Ludjibaite collected by the late Robert Walstrom.


Ludjibaite

Formula
Cu5(PO4)2(OH)4 
Crystal System
Triclinic 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
blue green 
Streak
bluish white 
Class
Triclinic - Pinacoidal 
Hardness
Collection
Robert E. Walstrom collection

Luetheite

#AH59664
Locality
Humboldt mine, Patagonia dist., Santa Cruz Co., Arizona, United States 
Formula
Cu2Al2(AsO4)2(OH)4·H2
Availability
Available
Price
$65.00
Size
2.3 x 2 x 1.4 cm - Thumbnail 
Tagged
arsenate , copper  
Special Info
Type Locality 

Bluish green clusters to 1mm composed of platy Luetheite to around 0.3mm. Luetheite is a rare copper arsenate found in only four places worldwide.


Luetheite

Formula
Cu2Al2(AsO4)2(OH)4·H2
Crystal System
Monoclinic 
Cleavage
Distinct, None, None 
Color
blue, greenish, light green 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
Collection
Arnold G Hampson Collection
Special Info
Type Locality
Mineralpedia
View Luetheite
On Dakota Matrix
Previously Sold Luetheite
On Dakota Matrix
Other Available Luetheite
WebMineral
View Luetheite
Mindat
View Luetheite
SOLD
Pectolite - AH59686
Pectolite - AH59686

Pectolite

#AH59686
Locality
Prospect Park, Passaic Co., New Jersey, United States 
Formula
NaCa2Si3O8(OH) 
Availability
Sold
Size
12 x 13 x 7 cm - Cabinet 

Large specimen with white, radial, crystals 4cm wide.


Pectolite

Formula
NaCa2Si3O8(OH) 
Crystal System
Triclinic 
Crystal Habit
Acicular, Globular, Radial 
Cleavage
Perfect, Perfect, None 
Luster
Vitreous - Silky 
Color
white, gray, light pink, light green 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Splintery 
Hardness
Collection
Arnold G Hampson Collection
Mineralpedia
View Pectolite
On Dakota Matrix
Previously Sold Pectolite
On Dakota Matrix
Other Available Pectolite
WebMineral
View Pectolite
Mindat
View Pectolite

Pyrite

#59674
Locality
Isle of Elba, Italy 
Formula
FeS2 
Availability
Sold
Size
11 x 7 x 6 cm - Cabinet 
Tagged
sulfide  

Brassy gold cubic crystals of Pyrite to 4cm on edge. Each crystal has a dusting of micro crystals giving it a nice sparkly luster. No damage. Very desirable locality.


Pyrite

Formula
FeS2 
Crystal System
Isometric 
Crystal Habit
Striated, Druse, Stalactitic 
Cleavage
Poor, Poor, None 
Luster
Metallic 
Color
pale brass yellow 
Streak
greenish black 
Class
Isometric - Diploidal 
Fracture
Conchoidal 
Hardness
6.5 
Mineralpedia
View Pyrite
On Dakota Matrix
Previously Sold Pyrite
On Dakota Matrix
Other Available Pyrite
WebMineral
View Pyrite
Mindat
View Pyrite

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2022 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map