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Mixed Minerals

Friday, 01 December 2017 07:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including alpersite, berthierine, bismuthinite, bournonite, and calaverite and more from places like Big Mike mine, Pershing Co., Nevada, United States, Bohutin, Pribram, Bohemia, Czech Republic, Brosso mine, Calea, Torino, Piedmont, Italy, Pachapaqui dist, Bolognesi prov., Ancash dept., Peru, and Independence mine, Cripple Creek dist., Teller Co., Colorado, United States.

Alpersite

#47905
Locality
Big Mike mine, Pershing Co., Nevada, United States 
Formula
(Mg,Cu2+)SO4·7H2
Availability
Sold
Size
6 x 4.5 x 3 cm - Sm Cabinet 
Tagged
copper  
Special Info
XRD Confirmed 
Special Info
Type & Only Locality 

Sky blue crystalline, spongy mass. 


Alpersite

Formula
(Mg,Cu2+)SO4·7H2
Crystal System
Monoclinic 
Crystal Habit
Efflorescences 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
blue 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness
2.5 
Collection
Robert J. Waidler Collection
Special Info
XRD Confirmed
Special Info
Type & Only Locality
Mineralpedia
View Alpersite
On Dakota Matrix
Previously Sold Alpersite
On Dakota Matrix
Other Available Alpersite
WebMineral
View Alpersite
Mindat
View Alpersite

Alpersite

#47906
Locality
Big Mike mine, Pershing Co., Nevada, United States 
Formula
(Mg,Cu2+)SO4·7H2
Availability
Sold
Size
9.5 x 5.5 x 3.0 cm - Cabinet 
Tagged
copper  
Special Info
XRD Confirmed 
Special Info
Type & Only Locality 

Largest specimen of Alpersite that I have - an excellent crystalline spongy mass with minute sprays of white Pickeringite.


Alpersite

Formula
(Mg,Cu2+)SO4·7H2
Crystal System
Monoclinic 
Crystal Habit
Efflorescences 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
blue 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness
2.5 
Special Info
XRD Confirmed
Special Info
Type & Only Locality
Mineralpedia
View Alpersite
On Dakota Matrix
Previously Sold Alpersite
On Dakota Matrix
Other Available Alpersite
WebMineral
View Alpersite
Mindat
View Alpersite

Berthierine

with Stibnite - #RW47982
Locality
Bohutin, Pribram, Bohemia, Czech Republic 
Formula
(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4 
Availability
Sold
Size
7 x 6.5 x 4 cm - Sm Cabinet 
Special Info
Antique Specimen 

Somewhat heavy dark grey/black Berthierine and Stibnite in compact mass. and of Ex. Foote. I am skeptical of the identification, but with the old Fotte stick-on label it is a curious specimen.


Berthierine

Formula
(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4 
Crystal System
Monoclinic 
Crystal Habit
Microscopic Crystals, Oolitic 
Luster
Pearly 
Color
brown green, green yellow, dark green 
Streak
greenish white 
Class
Monoclinic - Domatic 
Hardness
2.5 
Collection
Robert J. Waidler Collection
Special Info
Antique Specimen

Bismuthinite

in Siderite - #RW47984
Locality
Brosso mine, Calea, Torino, Piedmont, Italy 
Formula
Bi2S3 
Availability
Sold
Size
5 x 3 x 1.7 cm - Miniature 
Tagged
sulfide  

Long, slender and bladed Bismuthinite crystals to 1.3cm in Siderite.


Bismuthinite

Formula
Bi2S3 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Massive - Lamellar, Granular 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
gray, silver white, tin white 
Streak
gray 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Sectile 
Hardness
Collection
Robert J. Waidler Collection

Bournonite

#RW47983
Locality
Pachapaqui dist, Bolognesi prov., Ancash dept., Peru 
Formula
CuPbSbS3 
Availability
Sold
Size
6 x 4.5 x 2.5 cm - Sm Cabinet 
Tagged
sulfide , copper  

Numerous prismatic, cog-wheel twinned Bournonite crystals to over 1cm. Good specimen for crystals and form.


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
Collection
Robert J. Waidler Collection

Calaverite

#RW48018
Locality
Independence mine, Cripple Creek dist., Teller Co., Colorado, United States 
Formula
AuTe2 
Availability
Available
Price
$325.00
Size
5.5 x 4.5 x 4 cm - Sm Cabinet 
Tagged
tellurium , gold  

Goldish yellow to silvery crystal plates of Calaverite from 5-8mm exposed along a quartz vein of intrusive-volcanic rock.  A good rich specimen with six spots showing nice, lamellar/platy crystals of brittle Calaverite. The Indendence mine, north of Victor,  is located on the southeast edge of Newmont's open pit Cripple Creek mine. 

Robert Waidler purchased the specimen from the mineralman.com. On that tag it is noted that the specimen originated from the George A. Koening and Seaman collections.


Calaverite

Formula
AuTe2 
Crystal System
Monoclinic 
Crystal Habit
Striated, Massive, Crystalline - Fine 
Cleavage
None, None, None 
Luster
Metallic 
Color
yellow, yellowish white 
Streak
green 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
2.5 
Collection
Robert J. Waidler Collection

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