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Mixed Minerals

Friday, 31 July 2020 08:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including annabergite, aragonite, calcite, cerussite, elbaite, and perloffite and more from places like Laurium, Attika, Greece, Mapimi dist., Durango, Mexico, Santa Eulalia, Chihuahua, Mexico, Tsumeb mine, Tsumeb, Namibia, Tanco pegmatite, Bernic Lake, Manitoba, Canada, and Big Chief mine, Pennington Co., South Dakota, United States.

Annabergite

#WR53828
Locality
Laurium, Attika, Greece 
Formula
Ni3(AsO4)2·8H2
Availability
Available
Price
$125.00
Size
5 x 3.5 x 2 cm - Miniature 
Tagged
arsenate , nickel  

Bright green lath-like crystals to 1mm in a 2x1cm area. Two old labels: Willard Roberts and Georg Gebhard see prov. tab. Excellent specimen!


Annabergite

Formula
Ni3(AsO4)2·8H2
Crystal System
Monoclinic 
Crystal Habit
Earthy, Encrustations, Massive 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
apple green, greenish white, gray, yellow green, white 
Streak
light green 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
Collection
Willard L. Roberts Collection

Aragonite

#AH53786
Locality
Mapimi dist., Durango, Mexico 
Formula
CaCO3 
Availability
Available
Price
$195.00
Size
22 x 12 x 13 cm - Cabinet 
Tagged
carbonate  

Large specimen of snow white cloud-like and plumose crystal formations of Aragonite. It is fascinating just to hold this in your hands and marvel over the formations.

Because of the size and weight of the specimen, an additional charge is calculated into the shipping cost. Exact costs will be determined at the post office and a refund or a request for more funds will be issued.


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
Arnold G Hampson 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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Calcite

with Marcasite - #AH53787
Locality
Santa Eulalia, Chihuahua, Mexico 
Formula
CaCO3 
Availability
Available
Price
$85.00
Size
12 x 10.5 x 8 cm - Cabinet 
Tagged
carbonate  

Great cabinet specimen with dogtooth Calcite crystals to 2cm. This is an excellent piece with superb, sharp crystals on botryoidal Marcasite.


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

Cerussite

#WR53827
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
PbCO3 
Availability
Available
Price
$125.00
Size
8 x 6.5 x 3 cm - Sm Cabinet 
Tagged
carbonate  

Excellent showy  specimen with glassy, vitreous and striated crystals to 2.7cm. There are many smallery crystals of perfection. The largest crystal has a small, fairly non-visible piece missing. Otherwise, it is in great shape. 

Willard Roberts' label, see prov. tab. 


Cerussite

Formula
PbCO3 
Crystal System
Orthorhombic 
Crystal Habit
Reticulate, Massive - Granular, Crystalline - Coarse 
Cleavage
Distinct, Distinct, None 
Luster
Adamantine 
Color
colorless, white, gray, blue, green 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3-3.5 
Collection
Willard L. Roberts Collection
Mineralpedia
View Cerussite
On Dakota Matrix
Previously Sold Cerussite
On Dakota Matrix
Other Available Cerussite
WebMineral
View Cerussite
Mindat
View Cerussite

Elbaite

var. rubellite - #53789
Locality
Tanco pegmatite, Bernic Lake, Manitoba, Canada 
Formula
Na(Al1.5Li1.5)Al6(BO3)3Si6O18(OH)4 
Availability
Available
Price
$250.00
Size
25 x 15 x 10 cm - Cabinet 
Tagged
pegmatite mineral  

Large, heavy specimen of purple Lepidolite with deep pink or lilac colored Elbaite, variety rubellite, to 8cm long and 4cm wide. Collected by Dr. David London.

Because of the size and weight of the specimen, an additional charge is calculated into the shipping cost. Exact costs will be determined at the post office and a refund or a request for more funds will be issued.


Elbaite

Formula
Na(Al1.5Li1.5)Al6(BO3)3Si6O18(OH)4 
Crystal System
Trigonal 
Crystal Habit
Striated, Prismatic 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
blue, colorless, green, yellow, white 
Streak
white 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Sub Conchoidal 
Hardness
7.5 
Collection
Dr. David London Collection
Mineralpedia
View Elbaite
On Dakota Matrix
Previously Sold Elbaite
On Dakota Matrix
Other Available Elbaite
WebMineral
View Elbaite
Mindat
View Elbaite

Perloffite

in Ludlamite - #BN53829
Locality
Big Chief mine, Pennington Co., South Dakota, United States 
Formula
BaMn2+2Fe3+2(PO4)3(OH)3 
Availability
Available
Price
$195.00
Size
Micromount 
Tagged
phosphate , pegmatite mineral  
Special Info
Type Locality 

Black, sharp, suberb, sharply pointed Perloffite crystals to about 0.75mm in Ludlamite. Very rare barium phosphate. Type Locality.


Perloffite

Formula
BaMn2+2Fe3+2(PO4)3(OH)3 
Crystal System
Monoclinic 
Crystal Habit
Spear Head 
Cleavage
Perfect, None, None 
Luster
Vitreous - Adamantine 
Color
brownish black, greenish brown, dark brown, black 
Streak
greenish yellow 
Class
Monoclinic - Prismatic 
Hardness
Collection
Dr. Buford Nichols Collection
Special Info
Type Locality

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