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Mixed Minerals

Sunday, 06 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 alum-(na), barysilite, bohseite, clinojimthompsonite, copper, and creedite and more from places like Sapper Fumarole, El Palmar, Quetzaltenango, Guatemala, Parker Shaft, Franklin, Sussex Co., New Jersey, United States, Ermakovskoe beryllium deposit, Buryatia, Siberia, Russia, Carlton quarry, Chester, Windsor Co., Vermont, United States, Kingston Mine, Keweenaw Co., Michigan, United States, and Qinglong Co., Qianxi'nan, Guizhou prov, China.

Alum-(Na)

#BW59493
Locality
Sapper Fumarole, El Palmar, Quetzaltenango, Guatemala 
Formula
NaAl(SO4)2·12H2
Availability
Available
Price
$40.00
Size
3.5 x 3.5 x 2.5 cm - Miniature 

Spherules of white to colorless Alum-(Na) in a spongy, very light weight matrix. I have no idea what this matrix is.


Alum-(Na)

Formula
NaAl(SO4)2·12H2
Crystal System
Isometric 
Crystal Habit
Fibrous 
Luster
Vitreous (Glassy) 
Color
colorless 
Class
Isometric - Diploidal 
Hardness
Collection
Bill Wilson Collection

Barysilite

#59497
Locality
Parker Shaft, Franklin, Sussex Co., New Jersey, United States 
Formula
Pb8Mn(Si2O7)3 
Availability
Available
Price
$125.00
Size
Micromount 

Pearly, pinkish plates of very rare Barysilite to 3mm on a 1.5 x 1 x 1cm matrix. It is mounted in a micromount box.


Barysilite

Formula
Pb8Mn(Si2O7)3 
Crystal System
Trigonal 
Crystal Habit
Massive - Lamellar 
Cleavage
Perfect, None, None 
Luster
Adamantine 
Color
white, gray 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Hardness
Collection
RC Stamberg Collection
SOLD
Bohseite - 57743
Bohseite - 57743

Bohseite

#57743
Locality
Ermakovskoe beryllium deposit, Buryatia, Siberia, Russia 
Formula
Ca4Be3AlSi9O25(OH)3 
Availability
Sold
Size
1.5 x 0.7 x 0.5 cm - Thumbnail 
Tagged
beryllium , pegmatite mineral  
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 

Bohseite is a rare beryllium mineral found at only 7 localities worldwide. This specimen is yellow and compact fibrous.  It is from the private stock of Dr. Igor Pekov, who performed the analysis. 


Bohseite

Special Info
XRD Confirmed
Special Info
EDS Confirmed
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Clinojimthompsonite

with Chesterite & Jimthompsonite - #59637
Locality
Carlton quarry, Chester, Windsor Co., Vermont, United States 
Formula
Mg5Si6O16(OH)2 
Availability
Available
Price
$40.00
Size
4 x 1.5 x 1.5 cm - Miniature 
Special Info
Type Locality 

These three minerals you cannot discern with any confidence. Basically they are light to dark green. The Pryite is easily recognized, of course. There is probably Talc and Anthophyllite in the specimen as well. A label from the Cureton Mineral Co. founded by the late Forrest Cureton comes with the specimen. Forrest was a great mineralogist, a friend of mine.


Clinojimthompsonite

Formula
Mg5Si6O16(OH)2 
Crystal System
Monoclinic 
Cleavage
Good, None, None 
Luster
Silky - Pearly 
Color
colorless, pink brown 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
2-2.5 
Special Info
Type Locality

Copper

in Kingston Conglomerate - #59588
Locality
Kingston Mine, Keweenaw Co., Michigan, United States 
Formula
Cu 
Availability
Sold
Size
14 x 11.5 x 1 cm - Cabinet 
Tagged
native element  

Red conglomerate with impregnated Copper fillings shooting up the middle and along one side. This is a nice slab 1cm wide.


Copper

Formula
Cu 
Crystal System
Isometric 
Crystal Habit
Nodular, Arborescent 
Cleavage
None, None, None 
Luster
Metallic 
Color
brown, copper red, light pink, red 
Streak
rose 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
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Creedite

#59591
Locality
Qinglong Co., Qianxi'nan, Guizhou prov, China 
Formula
Ca3Al2(SO4)(OH)2F8·2H2
Availability
Available
Price
$295.00
Size
7 x 5 x 3.5 cm - Sm Cabinet 

Nice eye-candy specimen with Creedite crystals from 1 to 5mm with a dusting of purple Fluorite. Gorgeous specimen, no damage.


Creedite

Formula
Ca3Al2(SO4)(OH)2F8·2H2
Crystal System
Monoclinic 
Crystal Habit
Granular, Radial, Prismatic 
Cleavage
Perfect, None, None 
Luster
Vitreous - Greasy 
Color
colorless, violet, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
3.5 
Mineralpedia
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Previously Sold Creedite
On Dakota Matrix
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