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0 item @ $0.00  

Mixed Minerals

Sunday, 24 July 2022 07:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including microlite, monazite-(la), pentlandite, rhodochrosite, serpierite, and sylvanite and more from places like Harding mine, Taos Co., New Mexico, United States, Grey River, North Westland dist., South Island, New Zealand, Warren Nickel prospect, Warren, Knox Co., Maine, United States, American Tunnel, Silverton, San Juan Co., Colorado, United States, War Eagle mine, Inyo Co., California, United States, and Spotted Horse mine, Fergus Co., Montana, United States.

Microlite

in Lepidolite - #AH58855
Locality
Harding mine, Taos Co., New Mexico, United States 
Formula
A2-mD2X6-w Z1-n 
Availability
Available
Price
$45.00
Size
8 x 6 x 5 cm - Sm Cabinet 

Dense, fine granular purple Lepidolite with small 2-3mm Microlite crystals.


Microlite

Formula
(Na,Ca)2Ta2O6(O,OH,F) 
Crystal System
Isometric 
Crystal Habit
Disseminated, Pseudo Octohedral 
Cleavage
Indistinct, Indistinct, Indistinct 
Luster
Vitreous - Resinous 
Color
yellowish brown, reddish brown, greenish brown, green, gray 
Streak
light yellow 
Class
Isometric - Hexoctahedral 
Fracture
Sub Conchoidal 
Hardness
5-5.5 
Collection
Arnold G Hampson Collection
Mineralpedia
View Microlite
On Dakota Matrix
Previously Sold Microlite
On Dakota Matrix
Other Available Microlite
WebMineral
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Mindat
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Monazite-(La)

#BW58832
Locality
Grey River, North Westland dist., South Island, New Zealand 
Formula
LaPO4 
Availability
Sold
Size
8.5 x 6 x 4 cm - Sm Cabinet 
Tagged
phosphate , REE mineral , pegmatite mineral  

A solid mass of REE ore from this little known locality.


Monazite-(La)

Formula
LaPO4 
Crystal System
Monoclinic 
Crystal Habit
Crystalline - Fine, Twinning Common 
Cleavage
Distinct, Indistinct, None 
Luster
Adamantine - Resinous 
Color
brown, brown, yellowish brown, pink, yellow 
Streak
grayish white 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
5-5.5 
Collection
Bill Wilson Collection

Pentlandite

#BW58850
Locality
Warren Nickel prospect, Warren, Knox Co., Maine, United States 
Formula
(Ni,Fe)9S8 
Availability
Sold
Size
8 x 7 x 5.5 cm - Sm Cabinet 
Tagged
sulfide , nickel  

Partially sawed mass with dark golden Pentlandite crystal grains.


Pentlandite

Formula
(Ni,Fe)9S8 
Crystal System
Isometric 
Crystal Habit
Massive - Granular, Granular, Granular 
Cleavage
Parting, None, None 
Luster
Metallic 
Color
bronze, brown 
Streak
greenish black 
Class
Isometric - Hexoctahedral 
Fracture
Conchoidal 
Hardness
3.5-4 
Collection
Bill Wilson Collection

Rhodochrosite

#AH58861
Locality
American Tunnel, Silverton, San Juan Co., Colorado, United States 
Formula
MnCO3 
Availability
Sold
Size
4.5 x 4 x 3 cm - Miniature 
Tagged
carbonate  

Two 5mm pink discoidal Rhodochrosite crystals with numerous smaller crystals with Galena.


Rhodochrosite

Formula
MnCO3 
Crystal System
Trigonal 
Crystal Habit
Massive - Granular, Columnar, Botryoidal 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
pinkish red, red, rose red, yellowish gray, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Arnold G Hampson Collection

Serpierite

with Aurichalcite - #58860
Locality
War Eagle mine, Inyo Co., California, United States 
Formula
Ca(Cu,Zn)4(SO4)2(OH)6ยท3H2
Availability
Sold
Size
5 x 5 x 1.5 cm - Miniature 
Tagged
copper  

Sky blue 1mm clusters of bladed Serpierite with light blue sprays of Aurichalcite.


Serpierite

Formula
Ca(Cu,Zn)4(SO4)2(OH)6*3H2
Crystal System
Monoclinic 
Crystal Habit
Brittle 
Cleavage
Perfect, Perfect 
Luster
Pearly 
Color
Dark sky-blue to medium sky-blue; greenish blue  
Streak
White; pale blue 
Class
Prismatic 
Fracture
Splintery 
Hardness

Sylvanite

with Fluorite & Quartz - #58170
Locality
Spotted Horse mine, Fergus Co., Montana, United States 
Formula
AgAuTe4 
Availability
Available
Price
$125.00
Size
2.5 x 2.5 x 2.5 cm - Thumbnail 
Tagged
tellurium , silver , gold  

Fairly rich Sylvanite specimen with crystals to 4mm.


Sylvanite

Formula
AgAuTe4 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Skeletal, Platy 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
yellowish silver white, white 
Streak
steel gray 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
1.5-2 
Collection
Arnold G Hampson Collection
Mineralpedia
View Sylvanite
On Dakota Matrix
Previously Sold Sylvanite
On Dakota Matrix
Other Available Sylvanite
WebMineral
View Sylvanite
Mindat
View Sylvanite

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