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Mixed Minerals

Sunday, 15 November 2020 07:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including aragonite, azurite, beryl, beudantite, clausthalite, and eosphorite and more from places like Tsumeb mine, Tsumeb, Namibia, Metcalf mine, Greenlee Co., Arizona, United States, Gilgit dist., Gilgit-Baltistan, Northern Areas, Pakistan, Mina Ojuela, Mapimi, Durango, Mexico, Lerbach, Harz, Lower Saxony, Germany, and Taquaral, Itinga, Minas Gerais, Brazil.

Aragonite

var. tarnowitzite with Malachite - #52593
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
CaCO3 
Availability
Available
Price
$75.00
Size
5 x 4 x 3.5 cm - Miniature 
Tagged
carbonate  

Yellowish clusters and crystals to 3cm with Malachite.


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
Barbara Cureton Collection
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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Azurite

with Malachite - #RW51235
Locality
Metcalf mine, Greenlee Co., Arizona, United States 
Formula
Cu3(CO3)2(OH)2 
Availability
Available
Price
$275.00
Size
10.5 x 6.5 x 7 cm - Cabinet 
Tagged
carbonate , copper  

Stunning blue Azurite rosettes to 3mm in a large pocket of Malachite/Chrysocolla.


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
Robert J. Waidler Collection
Mineralpedia
View Azurite
On Dakota Matrix
Previously Sold Azurite
On Dakota Matrix
Other Available Azurite
WebMineral
View Azurite
Mindat
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Beryl

aquamarine - #AH54527
Locality
Gilgit dist., Gilgit-Baltistan, Northern Areas, Pakistan 
Formula
Be3Al2Si6O18 
Availability
Available
Price
$325.00
Size
6 x 6.5 x 5 cm - Sm Cabinet 
Tagged
beryllium , pegmatite mineral  

Showy, gemmy aquamarine crystal with a good termination showing beveled edges. It is naturally incomplete on one side.


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
Arnold G Hampson Collection
Mineralpedia
View Beryl
On Dakota Matrix
Previously Sold Beryl
On Dakota Matrix
Other Available Beryl
WebMineral
View Beryl
Mindat
View Beryl

Beudantite

#54557
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
PbFe3+3(AsO4)(SO4)(OH)6 
Availability
Available
Price
$35.00
Size
2.5 x 1.5 x 1 cm - Thumbnail 
Tagged
arsenate  

Micro greenish-yellow crystals.


Beudantite

Formula
PbFe3+3(AsO4)(SO4)(OH)6 
Crystal System
Trigonal 
Crystal Habit
Blocky - Rhombohedral, Druse, Platy 
Cleavage
Perfect, None, None 
Luster
Adamantine 
Color
brown, green, yellow, dark green, orange 
Streak
greenish yellow 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle 
Hardness

Clausthalite

with Hematite - #50386
Locality
Lerbach, Harz, Lower Saxony, Germany 
Formula
PbSe 
Availability
Available
Price
$175.00
Size
4 x 3.5 x 3 cm - Miniature 
Tagged
sulfide  

Silvery masses embedded in matrix and the cylinder from microprobe.


Clausthalite

Formula
PbSe 
Crystal System
Isometric 
Crystal Habit
Euhedral Crystals, Massive - Granular, Granular 
Cleavage
Perfect, Perfect, Perfect 
Luster
Metallic 
Color
lead gray, blue gray, grayish black 
Streak
grayish black 
Class
Isometric - Hexoctahedral 
Fracture
Brittle 
Hardness
2.5 

Eosphorite

on Quartz - #48007
Locality
Taquaral, Itinga, Minas Gerais, Brazil 
Formula
Mn2+AlPO4(OH)2·H2
Availability
Available
Price
$60.00
Size
5 x 3.5 x 3 cm - Miniature 
Tagged
phosphate , pegmatite mineral  

1 to 3mm Eosphorite crystals with thick coverage on Quartz.


Eosphorite

Formula
Mn2+AlPO4(OH)2·H2
Crystal System
Orthorhombic 
Crystal Habit
Massive - Fibrous, Prismatic, Striated 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Resinous 
Color
light pink, yellow brown, light brown, light yellow, colorless 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal - Uneven 
Hardness
Collection
Dr. Buford Nichols Collection

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