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Mixed Minerals

Friday, 14 January 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 aragonite, artinite, avdoninite, baryte, and bismuthinite and more from places like Levane, Bucine, Valdarno, Tuscany, Italy, Kamariza mine, Laurium, Greece, Artinite pit, Clear Creek, San Benito Co., California, United States, Tolbachik Volcano, Kamchatka, Russia, Stoneham, Weld Co., Colorado, United States, and Arveda, Colorado, United States.

Aragonite

with Kutnohorite - #57429
Locality
Levane, Bucine, Valdarno, Tuscany, Italy 
Formula
CaCO3 
Availability
Sold
Size
4 x 3 x 3.5 cm - Miniature 
Tagged
carbonate  

Excellent sprays of colorless Aragonite to 7mm on brown Kutnohorite.


Aragonite

Formula
CaCO3 
Crystal System
Orthorhombic 
Crystal Habit
Pseudo Hexagonal, Columnar, Fibrous 
Cleavage
Distinct, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, white, gray, yellowish white, reddish white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Sub Conchoidal 
Hardness
3.5-4 
Mineralpedia
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Previously Sold Aragonite
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Other Available Aragonite
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Aragonite

#57436
Locality
Kamariza mine, Laurium, Greece 
Formula
CaCO3 
Availability
Available
Price
$35.00
Size
8.5 x 7 x 5 cm - Sm Cabinet 
Tagged
carbonate  

Limonitic matrix with cavities filled with snow white Aragonite crystals to 1.3cm. 


Aragonite

Formula
CaCO3 
Crystal System
Orthorhombic 
Crystal Habit
Pseudo Hexagonal, Columnar, Fibrous 
Cleavage
Distinct, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, white, gray, yellowish white, reddish white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Sub Conchoidal 
Hardness
3.5-4 
Mineralpedia
View Aragonite
On Dakota Matrix
Previously Sold Aragonite
On Dakota Matrix
Other Available Aragonite
WebMineral
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Mindat
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Artinite

#57430
Locality
Artinite pit, Clear Creek, San Benito Co., California, United States 
Formula
Mg2CO3(OH)2·3H2
Availability
Sold
Size
4 x 3 x 3.5 cm - Miniature 
Tagged
carbonate  

White to faint green acicular crystals in radiating sprays to 8mm on serpintine matrix. Beautiful specimen.


Artinite

Formula
Mg2CO3(OH)2·3H2
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Radial, Encrustations 
Cleavage
Perfect, Good, None 
Luster
Silky 
Color
white 
Streak
white 
Class
Monoclinic 
Fracture
Uneven 
Hardness
2.5 
Mineralpedia
View Artinite
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Previously Sold Artinite
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Other Available Artinite
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Avdoninite

#52388
Locality
Tolbachik Volcano, Kamchatka, Russia 
Formula
K2Cu5Cl8(OH)4·H2
Availability
Sold
Size
3 x 1.5 x 1.5 cm - Thumbnail 
Tagged
copper  
Special Info
Type Locality 
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 
Special Info
Author's Material 

Glassy bright emerald green crystals in vuggy scoria.  This is a good, rich specimen. Avdoninte is only found in five localities worldwide.

A relatively new mineral from 2013 described by Dr. Igor Pekov and others in 2005. The specimen is from Pekov and can be considered "Author's Material".

The exact locality is: Yadovitaya fumarole, Second scoria cone, Northern Breakthrough (North Breach), Great Fissure eruption (Main Fracture), Tolbachik volcano, Kamchatka Krai, Russia


Avdoninite

Formula
K2Cu5Cl8(OH)4·H2
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Druse, Tabular 
Luster
Vitreous (Glassy) 
Color
green 
Streak
pale green 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
Special Info
Type Locality
Special Info
XRD Confirmed
Special Info
EDS Confirmed
Special Info
Author's Material

Baryte

#AH57427
Locality
Stoneham, Weld Co., Colorado, United States 
Formula
BaSO4 
Availability
Sold
Size
6.5 x 2.5 x 1.5 cm - Sm Cabinet 

An unusually large blue Baryte from this well-known Colorado locality. The specimen is basically three crystals grown in parallel and each is terminated.


Baryte

Formula
BaSO4 
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Prismatic, Massive - Fibrous 
Cleavage
Perfect, Perfect, Imperfect 
Luster
Vitreous (Glassy) 
Color
white, yellowish white, grayish white, brownish white, dark brown 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
3-3.5 
Collection
Arnold G Hampson Collection
Mineralpedia
View Baryte
On Dakota Matrix
Previously Sold Baryte
On Dakota Matrix
Other Available Baryte
WebMineral
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Mindat
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Bismuthinite

#57448
Locality
Arveda, Colorado, United States 
Formula
Bi2S3 
Availability
Sold
Size
5 x 4.5 x 5 cm - Miniature 
Tagged
sulfide  

Igneous rock with silvery impregnation of Bismuthinite.


Bismuthinite

Formula
Bi2S3 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Massive - Lamellar, Granular 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
gray, silver white, tin white 
Streak
gray 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Sectile 
Hardness

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