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1 item @ $125.00  

Mixed Minerals

Sunday, 03 October 2021 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including armstrongite, aurichalcite, beryl, bornite, carbonatecyanotrichite and more from places like Dorozhnyi peg., Khan Bogdo massif, Gobi Desert, Mongolia, Mina Ojuela, Mapimi, Durango, Mexico, Mount Mica quarry, Paris, Oxford Co., Maine, United States, Steward mine, Butte dist., Silver Bow Co., Montana, United States, Jomac mine, San Juan Co., Utah, United States, and White Canyon No. 1 mine, White Canyon, San Juan Co., Utah, United States.

Armstrongite

#56567
Locality
Dorozhnyi peg., Khan Bogdo massif, Gobi Desert, Mongolia 
Formula
CaZrSi6O15·2.5H2
Availability
Sold
Size
3 x 2.5 x 2.5 cm - Thumbnail 
Special Info
Type Locality 

Pink granular Armstrongite named for the first man on the Moon!


Armstrongite

Formula
CaZrSi6O15·2.5H2
Crystal System
Monoclinic 
Crystal Habit
Bladed, Spherical, Aggregates 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous (Glassy) 
Color
light brown, reddish brown 
Streak
brownish white 
Class
Monoclinic - Sphenoidal 
Fracture
Brittle 
Hardness
4.5 
Special Info
Type Locality

Aurichalcite

Murdochite & Hemimorphite - #AH56115
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
Zn5(CO3)2(OH)6 
Availability
Sold
Size
14 x 6 x 7 cm - Cabinet 
Tagged
carbonate  

Bluish green thin platy crystals to 5mm filling seams in limonite matrix with a large open void with good vertical sprays to 5mm. There are some bladed crystals of Hemimorphite and tiny black crystals of Murdochite.


Aurichalcite

Formula
Zn5(CO3)2(OH)6 
Crystal System
Monoclinic 
Crystal Habit
Druse, Encrustations, Acicular 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
pale green, sky blue, greenish blue 
Streak
light blue 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness

Beryl

var. cesium - #WR56611
Locality
Mount Mica quarry, Paris, Oxford Co., Maine, United States 
Formula
Be3Al2Si6O18 
Availability
Sold
Size
2.5 x 1.5 x 0.5 cm - Thumbnail 
Tagged
beryllium , pegmatite mineral  

This specimen is very intriguing for its chemistry (cesium rich), crystal habit, and luster. The luster is incredible, it is very flashy and was very difficult to photo. It is also complete all the way around - no contact points. It must have been a floater and as the Willard Roberts label states, it was found in a new pocket in 1949. It is not your typical Beryl crystal either as it is flat or tabular and has very complex faces. 


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
View Beryl
On Dakota Matrix
Previously Sold Beryl
On Dakota Matrix
Other Available Beryl
WebMineral
View Beryl
Mindat
View Beryl

Bornite

#RW53429
Locality
Steward mine, Butte dist., Silver Bow Co., Montana, United States 
Formula
Cu5FeS4 
Availability
Sold
Size
6 x 6 x 4 cm - Sm Cabinet 
Tagged
sulfide , copper , ore specimen  

An ore specimen of iridescent blue Bornite with a purplish iridescence on a fresh surface.


Bornite

Formula
Cu5FeS4 
Crystal System
Orthorhombic 
Crystal Habit
Massive - Granular, Reniform, Granular 
Cleavage
Imperfect, None, None 
Luster
Metallic 
Color
copper red, bronze brown, purple 
Streak
grayish black 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal 
Hardness
Collection
Robert J. Waidler Collection
Mineralpedia
View Bornite
On Dakota Matrix
Previously Sold Bornite
On Dakota Matrix
Other Available Bornite
WebMineral
View Bornite
Mindat
View Bornite

Carbonatecyanotrichite

#AH56614
Locality
Jomac mine, San Juan Co., Utah, United States 
Formula
Cu4Al2CO3(OH)12·2H2
Availability
Available
Price
$55.00
Size
5.5 x 5 x 2 cm - Sm Cabinet 
Tagged
carbonate , copper  

Deep blue, tiny radial groups of Carbonatecyanotrichite to less than 0.3mm in thick patches with Gypsum.


Carbonatecyanotrichite

Formula
Cu4Al2CO3(OH)12·2H2
Crystal System
Orthorhombic 
Crystal Habit
Acicular, Aggregates 
Luster
Silky 
Color
blue, greenish blue, azure blue 
Class
Orthorhombic 
Hardness
Collection
Arnold G Hampson Collection

Carbonatecyanotrichite

#AH56616
Locality
White Canyon No. 1 mine, White Canyon, San Juan Co., Utah, United States 
Formula
Cu4Al2CO3(OH)12·2H2
Availability
Available
Price
$175.00
Size
5.5 x 3 x 1.5 cm - Sm Cabinet 
Tagged
carbonate , copper  

Excellent, eye-popping, incredible blue Carbonatecyanotrichite as tiny, less than 0.2mm, spherulites with thick coverage across face. Coverage on both sides.


Carbonatecyanotrichite

Formula
Cu4Al2CO3(OH)12·2H2
Crystal System
Orthorhombic 
Crystal Habit
Acicular, Aggregates 
Luster
Silky 
Color
blue, greenish blue, azure blue 
Class
Orthorhombic 
Hardness
Collection
Arnold G Hampson Collection

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