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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, clinojimthompsonite, creedite, fluorite, and kochsandorite and more from places like Sapper Fumarole, El Palmar, Quetzaltenango, Guatemala, Parker Shaft, Franklin, Sussex Co., New Jersey, United States, Carlton quarry, Chester, Windsor Co., Vermont, United States, Qinglong Co., Qianxi'nan, Guizhou prov, China, Gordonsville mine, Carthage, Smith Co., Tennessee, United States, and Coal mine, Mány, Bicskei dist., Fejér Co., Hungary.

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

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

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
View Creedite
On Dakota Matrix
Previously Sold Creedite
On Dakota Matrix
Other Available Creedite
WebMineral
View Creedite
Mindat
View Creedite

Fluorite

#59537
Locality
Gordonsville mine, Carthage, Smith Co., Tennessee, United States 
Formula
CaF2 
Availability
Available
Price
$75.00
Size
8 x 5.5 x 2.5 cm - Sm Cabinet 

Purple Fluorite crystals to 9mm on edge. This specimen sits well and is nicely trimmed.


Fluorite

Formula
CaF2 
Crystal System
Isometric 
Crystal Habit
Crystalline - Coarse, Massive - Granular, Disseminated 
Cleavage
Three perfect, octahedral cleavages. 
Luster
Vitreous (Glassy) 
Color
purple, clear, yellow, green, red, blue 
Streak
white 
Geological Setting
Occurs in a wide range of geologic environments including low temperature Missississippi Valley lead-zinc deposits, hydrothermal gold deposits, Alpine cleft metamorphic environments  
Class
Isometric - Hexoctahedral 
Fracture
Uneven 
Hardness
Mineralpedia
View Fluorite
On Dakota Matrix
Previously Sold Fluorite
On Dakota Matrix
Other Available Fluorite
WebMineral
View Fluorite
Mindat
View Fluorite

Kochsandorite

#BW59632
Locality
Coal mine, Mány, Bicskei dist., Fejér Co., Hungary 
Formula
CaAl2(CO3)2(OH)4·H2
Availability
Available
Price
$50.00
Size
2.5 x 2 x 1.5 cm - Thumbnail 
Tagged
carbonate  
Special Info
Type Locality 

Kochsandorite is a very rare calcium-aluminum carbonate found at only three localities in the world. At this locality it is found in a coal mine in a matrix of carbonaceous shale. The Kochsandorite is a bundle of silky fibrous crystals too small to measure.


Kochsandorite

Formula
CaAl2(CO3)2(OH)4·H2
Crystal System
Orthorhombic 
Crystal Habit
Acicular, Radial 
Cleavage
None, None, None 
Luster
Vitreous - Silky 
Color
white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
2-2.5 
Collection
Bill Wilson Collection
Special Info
Type Locality

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