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Mixed Minerals

Friday, 23 March 2018 07:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including anglesite, arsenopyrite, atelestite, baryte, bournonite, and chalcopyrite and more from places like Touissit-Bou Beker dist., Jerada Prov., L'oriental, Morocco, Trepca Valley, Kosovo, Schmiedestollen, Wittichen, Baden-Württemberg, Germany, Huarihuyn, Miraflores, Huamalíes, Huánuco, peru, Yaogangxian mine, Chenzhou, Hunan prov., China, and Arakawa mine, Kyohwa, Akita, Tohoku, Honshu Island, Japan.

Anglesite

#RW48607
Locality
Touissit-Bou Beker dist., Jerada Prov., L'oriental, Morocco 
Formula
PbSO4 
Availability
Sold
Size
8 x 4.5 x 4 cm - Sm Cabinet 

You rarely see Anglesite of this quality on the market these days. This specimen features numerous excellent crystals to 1.5cm with an incredible adamantine luster. 


Anglesite

Formula
PbSO4 
Crystal System
Orthorhombic 
Crystal Habit
Granular, Stalactitic 
Cleavage
Good, Distinct, None 
Luster
Adamantine 
Color
blue, colorless, green, gray, yellow 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
2.5-3 
Collection
Robert J. Waidler Collection
Mineralpedia
View Anglesite
On Dakota Matrix
Previously Sold Anglesite
On Dakota Matrix
Other Available Anglesite
WebMineral
View Anglesite
Mindat
View Anglesite

Arsenopyrite

with Rhodochrosite - #48432
Locality
Trepca Valley, Kosovo 
Formula
FeAsS 
Availability
Available
Price
$125.00
Size
8 x 6.5 x 4.5 cm - Sm Cabinet 
Tagged
sulfide  

Flashy well-formed Arsenopyrite crystals to 1.5cm but averaging more like 7mm. The backside contains soft pink Rhodochrosite crystals.


Arsenopyrite

Formula
FeAsS 
Crystal System
Monoclinic 
Crystal Habit
Striated, Euhedral Crystals, Prismatic 
Cleavage
one distinct 
Luster
Metallic 
Color
tin white, light steel gray 
Streak
black 
Geological Setting
Widespread. Most commonly found in medium to high temperature veins.  
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
5.5 to 6 

Atelestite

with Mixite - #PD30860
Locality
Schmiedestollen, Wittichen, Baden-Württemberg, Germany 
Formula
Bi2O(AsO4)(OH) 
Availability
Sold
Size
4 x 3 x 3.5 cm - Miniature 
Tagged
arsenate  

2mm yellow-green waxy group of rare Atelestite with probably Mixite. Rare.


Atelestite

Formula
Bi2O(AsO4)(OH) 
Crystal System
Monoclinic 
Cleavage
Indistinct, None, None 
Luster
Adamantine - Resinous 
Color
green, light yellow, black 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
4.5-5 
Collection
Don Phillips Collection

Baryte

#48420
Locality
Huarihuyn, Miraflores, Huamalíes, Huánuco, peru 
Formula
BaSO4 
Availability
Sold
Size
5 x 4 x 4.5 cm - Miniature 

Golden-yellow thick tabular crystals of Baryte. Very nice piece. 


Baryte

Formula
BaSO4 
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Prismatic, Massive - Fibrous 
Cleavage
Perfect, Perfect, Imperfect 
Luster
Vitreous (Glassy) 
Color
white, yellowish white, grayish white, brownish white, dark brown 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
3-3.5 
Mineralpedia
View Baryte
On Dakota Matrix
Previously Sold Baryte
On Dakota Matrix
Other Available Baryte
WebMineral
View Baryte
Mindat
View Baryte

Bournonite

#48422
Locality
Yaogangxian mine, Chenzhou, Hunan prov., China 
Formula
CuPbSbS3 
Availability
Available
Price
$325.00
Size
3 x 3 x 1.8 cm - Thumbnail 
Tagged
sulfide , copper  

A remarkable single Bournonite crystal with deep striations and terminated on both ends. It sits on several smaller crystals. The backside has obvious imperfections, but these are natural. There is a small ding to the main crystal.


Bournonite

Formula
CuPbSbS3 
Crystal System
Orthorhombic 
Crystal Habit
Platy, Pseudo Cubic, Cog-wheel 
Cleavage
Imperfect, None, None 
Luster
Metallic 
Color
gray, black, steel gray 
Streak
gray 
Class
Orthorhombic - Dipyramidal 
Fracture
Sub Conchoidal 
Hardness

Chalcopyrite

#48416
Locality
Arakawa mine, Kyohwa, Akita, Tohoku, Honshu Island, Japan 
Formula
Cu1+Fe3+S2 
Availability
Available
Price
$275.00
Size
7 x 5 x 4.5 cm - Sm Cabinet 
Tagged
sulfide , copper  

Large golden well-formed Chalcopyrite crystals to 1cm with one crystal to 2cm. This is a locality not commonly seen on the market. A very nice specimen and a must for any sulfide collector. Ex. Charles Noll collection.


Chalcopyrite

Formula
Cu1+Fe3+S2 
Crystal System
Tetragonal 
Crystal Habit
Euhedral Crystals, Striated, Druse 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
brass yellow, honey yellow 
Streak
greenish black 
Class
Tetragonal - Scalenohedral 
Fracture
Brittle 
Hardness
3.5 

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