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Recently Released New Additions

Mixed Minerals

Friday, 28 July 2023 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including beryl, hessite, orebroite, stephanite, and terrywallaceite and more from places like Bennett quarry, Buckfield, Oxford Co., Maine, United States, Boise Co., Montana, United States, Joe Shaft, near Tombstone, Cochise Co., Arizona, United States, Sjögruvan, Grythyttan, Västmanland, Sweden, Svornost mine, Jáchymov, Erzgebirge, Bohemia, Czech Republic, and Kaňk, Kutná Hora, Bohemia, Czech Republic.

Beryl - DL62165
Beryl - DL62165

Beryl

in Albite with Muscovite - #DL62165
Locality
Bennett quarry, Buckfield, Oxford Co., Maine, United States 
Formula
Be3Al2Si6O18 
Availability
Available
Price
$75.00
Size
7 x 6 x 4 cm - Sm Cabinet 
Tagged
beryllium , pegmatite mineral  

Light green etched Beryl in white Microcline with pockets of Cookeite and crystals of apatite.


Beryl

Formula
Be3Al2Si6O18 
Crystal System
Hexagonal 
Crystal Habit
Crystalline - Coarse, Prismatic, Columnar 
Cleavage
Imperfect, None, None 
Luster
Vitreous - Resinous 
Color
green, blue, yellow, colorless, pink 
Streak
white 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
7.5-8 
Collection
Dr. David London Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Beryl
On Dakota Matrix
Other Available Beryl
WebMineral
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Mindat
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Beryl - CVL62195
Beryl - CVL62195

Beryl

var. aquamarine - #CVL62195
Locality
Boise Co., Montana, United States 
Formula
Be3Al2Si6O18 
Availability
Available
Price
$40.00
Size
0.9 x 0.3 x 0.2 cm - Thumbnail 
Tagged
beryllium  

Two gemmy aquamarine crystals of 9 and 6mm.


Beryl

Formula
Be3Al2Si6O18 
Crystal System
Hexagonal 
Crystal Habit
Crystalline - Coarse, Prismatic, Columnar 
Cleavage
Imperfect, None, None 
Luster
Vitreous - Resinous 
Color
green, blue, yellow, colorless, pink 
Streak
white 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
7.5-8 
Collection
Chris van Laer Collection
Mineralpedia
View Beryl
On Dakota Matrix
Previously Sold Beryl
On Dakota Matrix
Other Available Beryl
WebMineral
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Mindat
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SOLD
Hessite - KR61973
Hessite - KR61973

Hessite

#KR61973
Locality
Joe Shaft, near Tombstone, Cochise Co., Arizona, United States 
Formula
Ag2Te 
Availability
Sold
Size
4.7 x 2.7 x 2.7 cm - Miniature 
Tagged
tellurium , silver  
Special Info
Microprobed 

Dull black, sectile, masses and partial crystals throughout matrix.

Questionable locality.


Hessite

Formula
Ag2Te 
Crystal System
Monoclinic 
Crystal Habit
Modified pseudocubic, irregular and distorted 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
lead gray, steel gray 
Streak
light gray 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
1.5-2 
Collection
Kenneth Raabe Collection
Special Info
Microprobed
Mineralpedia
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On Dakota Matrix
Previously Sold Hessite
On Dakota Matrix
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Mindat
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Orebroite - BAC62208
Orebroite - BAC62208

Orebroite

#BAC62208
Locality
Sjögruvan, Grythyttan, Västmanland, Sweden 
Formula
Mn2+6(Fe3+,Sb5+)2(SiO4)2(O,OH)6 
Availability
Available
Price
$295.00
Size
2 x 1.3 x 1 cm - Thumbnail 
Special Info
Type & Only Locality 

Cherry red crystal grain to ablut 0.5mm. Orebroit is an extremely rare antimony mineral found only at this locality.


Orebroite

Collection
William & Anne Cook Collection
Special Info
Type & Only Locality
On Dakota Matrix
Previously Sold Orebroite
On Dakota Matrix
Other Available Orebroite
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Mindat
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Stephanite - KR62006
Stephanite - KR62006

Stephanite

#KR62006
Locality
Svornost mine, Jáchymov, Erzgebirge, Bohemia, Czech Republic 
Formula
Ag5SbS4 
Availability
Available
Price
$450.00
Size
3.6 x 2.5 x 1.8 cm - Miniature 
Tagged
sulfide , silver  
Special Info
Antique Specimen 

This specimen originated from the Czech National Museum and is from the type locality circa 1845. It comes with the Czech label as well as the label from the late Josef Vajdak, a famous Czech mineralogist.

The crystal group shown in the second photo is 4mm and shows exceptional repeated twinning forming pseudohexagonal groups. There are several other crystals on the order of 1mm and less.


Stephanite

Formula
Ag5SbS4 
Crystal System
Orthorhombic 
Crystal Habit
Pseudo Hexagonal, Tabular, Massive 
Cleavage
Imperfect, Poor, None 
Luster
Metallic 
Color
lead gray, black 
Streak
black 
Class
Orthorhombic - Pyramidal 
Fracture
Sub Conchoidal 
Hardness
2-2.5 
Collection
Kenneth Raabe Collection
Special Info
Antique Specimen
Mineralpedia
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On Dakota Matrix
Previously Sold Stephanite
On Dakota Matrix
Other Available Stephanite
WebMineral
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Mindat
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SOLD
Terrywallaceite - KR62012
Terrywallaceite - KR62012

Terrywallaceite

#KR62012
Locality
Kaňk, Kutná Hora, Bohemia, Czech Republic 
Formula
AgPb(Sb,Bi)3S6 
Availability
Sold
Size
2.3 x 2.1 x 1.7 cm - Thumbnail 
Tagged
sulfide , silver  

Both Terrywallaceite and Gustavite are silver-lead-bismuth sulfides. Terrywallaceite also contains antimony. Neither are distinguishable on this specimen since both are silvery and in grains, not crystals. Both minerals are rare.


Terrywallaceite

Collection
Kenneth Raabe Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Terrywallaceite
On Dakota Matrix
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WebMineral
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Mindat
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