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Systematic Minerals from Pribram, Czech Republic

Thursday, 17 May 2012 07:30 AM

Pribram, Bohemia, Czech Republic

Arsenopyrite

with Galena - #PD31784
Locality
Pribram, Bohemia, Czech Republic 
Formula
FeAsS 
Availability
Sold
Size
5 x 8 x 3 cm - Sm Cabinet 
Tagged
sulfide  

Cabinet specimen loaded with good size 1.5cm Arsenopyrite crystals. The flip side is a completely different presentation with Siderite covering melted looking Galena. Excellent specimen from this important mining district.


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 
Collection
Phillips Collection
SOLD
BOURNONITE - PD32003
BOURNONITE - PD32003

Bournonite

#PD32003
Locality
Pribram, Bohemia, Czech Republic 
Formula
CuPbSbS3 
Availability
Sold
Size
4 x 4.5 x 3 cm - Miniature 
Tagged
sulfide  
Special Info
Antique Specimen 

A better, much better, specimen in person than the photos show with a glistening, tabuler, twinned Bournonite crystal to 1cm and a few smaller on Siderite matrix. Comes with an old Conklin label and another old inked label accidentally torn.


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
Phillips Collection
Special Info
Antique Specimen

Calcite

& Chalcopyrite - #PD31763
Locality
Pribram, Bohemia, Czech Republic 
Formula
CaCO3 
Availability
Sold
Size
11 x 5 x 6.5 cm - Cabinet 
Tagged
carbonate  
Special Info
Fluorescent 

An interesting grouping of scalenohedral Calcite crystals to 1.5cm encrusted over by a coat of Chalcopyrite (or Pyrite) and a second generation of Calcite.


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
Phillips Collection
Special Info
Fluorescent
Mineralpedia
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Calcite

#PD31764
Locality
Pribram, Bohemia, Czech Republic 
Formula
CaCO3 
Availability
Sold
Size
10 x 8 x 2 cm - Cabinet 
Tagged
carbonate  
Special Info
Fluorescent 

A plate of Calcite crystals ranging in size from 3 to 9mm. The crystals of discoidal in form and show good striations. Ex Narodni Museum in Bohemia specimen.


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
Phillips Collection
Special Info
Fluorescent
Mineralpedia
View Calcite
On Dakota Matrix
Previously Sold Calcite
On Dakota Matrix
Other Available Calcite
WebMineral
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Mindat
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Calcite

var. Manganocalcite - #PD31785
Locality
Anna Mine, Pribram, Bohemia, Czech Republic 
Formula
CaCO3 
Availability
Sold
Size
5 x 8 x 4 cm - Sm Cabinet 
Special Info
Fluorescent 

Light pink aggregate of manganocalcite to 1.5cm across. Nice aesthetic specimen.


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
Phillips Collection
Special Info
Fluorescent
Mineralpedia
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On Dakota Matrix
Previously Sold Calcite
On Dakota Matrix
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Cerussite

on Galena - #PD31768
Locality
Pribram, Bohemia, Czech Republic 
Formula
PbCO3 
Availability
Sold
Size
7 x 8 x 4 cm - Sm Cabinet 
Tagged
carbonate  
Special Info
Antique Specimen 

Large cabinet specimen full of translucent, hemimorphic and twinned Cerussite crystals to 5mm on a Galena and hard shale matrix. I would imagine that this is a premium example of classic ore from this region and nice examples of Cerussite crystals.


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
Phillips Collection
Special Info
Antique Specimen
Mineralpedia
View Cerussite
On Dakota Matrix
Previously Sold Cerussite
On Dakota Matrix
Other Available Cerussite
WebMineral
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Mindat
View Cerussite

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