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Rare Tsumeb Mineral Specimens IV

Friday, 29 June 2018 07:00 PM

Introducing the "Rare Tsumeb Mineral Specimens IV" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including aragonite, azurite, calcite, malachite, and plancheite and more from places like Tsumeb mine, Tsumeb, Namibia.

Aragonite

#PD49247
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
CaCO3 
Availability
Available
Price
$50.00
Size
5 x 3.5 x 4 cm - Miniature 
Tagged
carbonate  

Light aquamarine to white Aragonite crystals to 6mm. Ex. E&A Shier Collection via Rocksmiths circa 1965.


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 
Collection
Don Phillips Collection
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Previously Sold Aragonite
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Azurite

#PD48798
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
Cu3(CO3)2(OH)2 
Availability
Available
Price
$195.00
Size
4.5 x 2.0 x 2.1 cm - Miniature 
Tagged
carbonate , copper  

Two sub-parallel deep lustrous blue Azurite crystals to 4.5cm. Ex. Prosper J. Williams.


Azurite

Formula
Cu3(CO3)2(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Tabular, Prismatic, Stalactitic 
Cleavage
Perfect, Fair, None 
Luster
Vitreous (Glassy) 
Color
azure blue, blue, light blue, dark blue 
Streak
light blue 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Collection
Don Phillips Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Azurite
On Dakota Matrix
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Mindat
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Calcite

#PD49218
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
CaCO3 
Availability
Available
Price
$40.00
Size
12.5 x 5.5 x 6 cm - Cabinet 
Tagged
carbonate  

White interesting formation of at least two generations of Calcite, perhaps as a cast of a former mineral.


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
Don Phillips Collection
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Malachite

#RW49225
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
Cu2CO3(OH)2 
Availability
Available
Price
$125.00
Size
6 x 6 x 6 cm - Sm Cabinet 
Tagged
carbonate , copper  

Large specimen of botryoidal Malachite with dull fuzzy terminations.


Malachite

Formula
Cu2CO3(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Botryoidal, Stalactitic, Massive - Fibrous 
Cleavage
Perfect, Fair, None 
Luster
Vitreous - Silky 
Color
green, dark green, blackish green 
Streak
light green 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
3.5-4 
Collection
Robert J. Waidler Collection
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Plancheite

on Smithsonite - #PD49278
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
Cu8(Si4O11)2(OH)4·H2
Availability
Available
Price
$125.00
Size
6.5 x 4 x 4 cm - Sm Cabinet 
Tagged
copper  

Deep sky blue fibrous crystal groups on rhombic Smithsonite.


Plancheite

Formula
Cu8(Si4O11)2(OH)4·H2
Crystal System
Orthorhombic 
Crystal Habit
Fibrous, Radial, Acicular 
Luster
Adamantine - Silky 
Color
blue, greenish blue 
Streak
light blue 
Class
Orthorhombic - Dipyramidal 
Fracture
Unknown 
Hardness
5.5 
Collection
Don Phillips Collection

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