Pribram, Czech Republic

SOLD

Cerussite

on Galena - #PD31768

$150.00 - Sold
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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: View Cerussite
Mindat: View Cerussite

SOLD

Covellite

#PD31774

$25.00 - Sold
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Locality: Pribram, Bohemia, Czech Republic
Formula: CuS
Availability: Sold
Size: 5 x 7 x 3 cm - Sm Cabinet
Tagged: sulfide

Deep azure blue coating rhyolitic(?) matrix. Just a representative specimen.

Covellite

Formula: CuS
Crystal System: Hexagonal
Crystal Habit: Platy, Foliated
Cleavage: Perfect, None, None
Luster: Metallic
Color: indigo blue, light blue, dark blue, black
Streak: black gray
Class: Hexagonal - Dihexagonal Dipyramidal
Fracture: Brittle
Hardness: 1.5-2

Collection: Phillips Collection

Mineralpedia: View Covellite
On Dakota Matrix: Previously Sold Covellite
On Dakota Matrix: Other Available Covellite
WebMineral: View Covellite
Mindat: View Covellite

Cronstedtite

#PD31997

$295.00 - Available
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Locality: Pribram, Bohemia, Czech Republic
Formula: (Fe²⁺,Fe³⁺)₃(Si,Fe³⁺)₂O₅(OH)₄
Availability: Available
Price: $295.00
Size: 6 x 4.5 x 1.5 cm - Sm Cabinet
Special Info: Antique Specimen
Special Info: Type Locality

Awesome specimen with old labels and numbers to match the specimen to labels. The face is covered with black, lustrous trigonal crystals with rounded triangular terminations and prismatic forms. Excellent old specimen. Sawed backside. Type Locality.

Cronstedtite

Formula: (Fe²⁺,Fe³⁺)₃(Si,Fe³⁺)₂O₅(OH)₄
Crystal System: Trigonal
Crystal Habit: Pyramidal, Divergent, Amorphous
Cleavage: Perfect, None, None
Luster: Vitreous - Resinous
Color: brownish black, greenish black, dark brown, black
Streak: dark olive green
Class: Trigonal - Ditrigonal Pyramidal
Hardness: 3.5

Collection: Phillips Collection
Special Info: Antique Specimen
Special Info: Type Locality

Mineralpedia: View Cronstedtite
On Dakota Matrix: Previously Sold Cronstedtite
On Dakota Matrix: Other Available Cronstedtite
WebMineral: View Cronstedtite
Mindat: View Cronstedtite

Dolomite

with Siderite - #PD31762

$40.00 - Available
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Locality: Pribram, Bohemia, Czech Republic
Formula: CaMg(CO₃)₂
Availability: Available
Price: $40.00
Size: 6 x 6 x 4 cm - Sm Cabinet
Tagged: carbonate

This is more of an aesthetic, small cabinet specimen, but good for a well rounded Pribram collection. The crystals are large and discoidal and measure 2cm across. The entire specimen is covered by a frosting of clear clacites or even dolomite. If you look at the backside, you'll see dark cleavages of Siderite, an indication of how the geochemistry had changed.

Dolomite

Formula: CaMg(CO₃)₂
Crystal System: Trigonal
Crystal Habit: Crystalline - Coarse, Massive, Blocky - Rhombohedral
Cleavage: Perfect, Perfect, Perfect
Luster: Vitreous (Glassy)
Color: white, gray, reddish white, brownish white, gray
Streak: white
Class: Trigonal - Rhombohedral
Fracture: Brittle - Conchoidal
Hardness: 3.5-4

Collection: Phillips Collection

Mineralpedia: View Dolomite
On Dakota Matrix: Previously Sold Dolomite
On Dakota Matrix: Other Available Dolomite
WebMineral: View Dolomite
Mindat: View Dolomite

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Goethite

#PD31786

$95.00 - Sold
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Locality: Pribram, Bohemia, Czech Republic
Formula: FeO(OH)
Availability: Sold
Size: 4 x 7 x 4 cm - Sm Cabinet

Excellent specimen with beautifull brassy looking, platy sprays of Goethite to 1mm covering the matrix. The specimen was once in the University of Chicago collection dated 1963 with a number which matches the specimen.