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Mixed Minerals

Friday, 12 June 2020 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, calcite, and topaz and more from places like Beryl Mountain mine, South Acworth, Sullivan Co., New Hampshire, United States, Guanajuato, Guanajuato, Mexico, Charcas, San Luis Potosi, Mexico, and Adun-Cholon Range, Nerchinsk, Zabaykalsky Krai, Russia.

Beryl

#WR53533
Locality
Beryl Mountain mine, South Acworth, Sullivan Co., New Hampshire, United States 
Formula
Be3Al2Si6O18 
Availability
Available
Price
$45.00
Size
5.5 x 3 x 1.5 cm - Sm Cabinet 
Tagged
beryllium , pegmatite mineral  

Yellow Beryl crystal section. Shows a full hexagonal prism but neither end is terminated.


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
Willard L. Roberts 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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Calcite

on Quartz var. amethyst - #WR53518
Locality
Guanajuato, Guanajuato, Mexico 
Formula
CaCO3 
Availability
Available
Price
$65.00
Size
9 x 6.5 x 5 cm - Sm Cabinet 
Tagged
carbonate  

3-5mm colorless, nail-head, Calcite crystals on soft, frosted amethyst crystals. 


Calcite

Formula
CaCO3 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Stalactitic, Massive 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
colorless, white, pink, yellow, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Willard L. Roberts Collection
Mineralpedia
View Calcite
On Dakota Matrix
Previously Sold Calcite
On Dakota Matrix
Other Available Calcite
WebMineral
View Calcite
Mindat
View Calcite

Calcite

#WR53519
Locality
Charcas, San Luis Potosi, Mexico 
Formula
CaCO3 
Availability
Available
Price
$150.00
Size
13 x 7 x 6 cm - Cabinet 
Tagged
carbonate  

Classic locality for this form of Calcite known as "poker-chip calcite". This one is in great shape with the largest crystal to 6cm. All the crystals have that unique grey band at the center. 


Calcite

Formula
CaCO3 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Stalactitic, Massive 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
colorless, white, pink, yellow, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Willard L. Roberts Collection
Mineralpedia
View Calcite
On Dakota Matrix
Previously Sold Calcite
On Dakota Matrix
Other Available Calcite
WebMineral
View Calcite
Mindat
View Calcite

Topaz

#WR53530
Locality
Adun-Cholon Range, Nerchinsk, Zabaykalsky Krai, Russia 
Formula
Al2SiO4F2 
Availability
Available
Price
$350.00
Size
10 x 7 x 5 cm - Cabinet 

Cabinet specimen and an old-time classic with nine sizeable crystals, colorless and nicely striated to 2cm. Exceptional specimen for any Topaz collecter. 


Topaz

Formula
Al2SiO4F2 
Crystal System
Orthorhombic 
Crystal Habit
Crystalline - Coarse, Prismatic, Massive - Granular 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, pale blue, yellow, yellowish brown, red 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Uneven 
Hardness
Collection
Willard L. Roberts Collection
Mineralpedia
View Topaz
On Dakota Matrix
Previously Sold Topaz
On Dakota Matrix
Other Available Topaz
WebMineral
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Mindat
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