Mineralogy Database
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101 samples matching your criteria
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Sample n°
4547 :
crust of black crystals (1 cm) on block of chalcedony
Minerals: LIBETHENITE CHALCEDONY (quartz)
Year:
Country: Congo (RDC)
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Sample n°
2468 :
zoned chalcedony with geodes of microcrystalline quartz
Minerals: CHALCEDONY (quartz) QUARTZ
Year: 1937
Country: Congo (RDC)
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Sample n°
4710 :
olive-green coatings (chalcedony)
Minerals: CHALCEDONY (quartz) KATANGITE (plancheite)
Year:
Country: Congo (RDC)
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Sample n°
10070 :
red and purple veined block
Minerals: CHALCEDONY (quartz)
Year: 1964
Country: Congo (RDC)
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Sample n°
13438 :
white block with conchoidal fracture, blue spots
Minerals: CHALCEDONY (quartz)
Year: 1976
Country: Madagascar
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Sample n°
5834 :
sawn block (20 cm), septarian concretion
Minerals: CHALCEDONY (quartz)
Year:
Country: Congo (RDC)
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Sample n°
12495 :
brown block with conchoidal fractures (8 cm)
Minerals: CHALCEDONY (quartz)
Year: 1970
Country: Rwanda
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Sample n°
12108 :
sample with pseudomalachite as green nodules and as small crystals on nodules, white chalcedony (radioactive sample)
Minerals: PSEUDOMALACHITE CHALCEDONY (quartz)
Year: 1969
Country: France
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Sample n°
3535 :
sample with long prismatic uranophane-beta crystals, uraninite nodules, traces of meta-autunite
Minerals: META-AUTUNITE PYRITE URANINITE URANOPHANE-BETA CHALCEDONY (quartz)
Year: 1953
Country: France
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Sample n°
14008 :
fragments (1-3 cm)
Minerals: AGATE (quartz) CHALCEDONY (quartz)
Year: 1983
Country: USA
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Sample n°
7109 :
geodic rock
Minerals: CHALCEDONY (quartz)
Year:
Country: Congo (RDC)
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Sample n°
12546 :
banded fragments
Minerals: CHALCEDONY (quartz)
Year: 1921
Country: Angola
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Sample n°
12597 :
banded grey-white and pink-white blocks (8 and 15 cm)
Minerals: CHALCEDONY (quartz)
Year: 1971
Country: Burundi
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Sample n°
12102 :
sample with green-yellow tabular parsonsite crystals
Minerals: PARSONSITE CHALCEDONY (quartz) META-AUTUNITE METATORBERNITE
Year: 1969
Country: France
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Sample n°
12105 :
sample with well-developed metatorbernite crystals
Minerals: METATORBERNITE CHALCEDONY (quartz) META-AUTUNITE PYRITE
Year: 1969
Country: France
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Sample n°
12109 :
sample with yellow parsonsite crystals, brown powdery hollandite nodules, green chalcedony, dendritic black oxides
Minerals: HOLLANDITE PARSONSITE CHALCEDONY (quartz) META-AUTUNITE
Year: 1969
Country: France
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Sample n°
12111 :
no description available
Minerals: META-AUTUNITE CHALCEDONY (quartz) HEMATITE METATORBERNITE
Year: 1969
Country: France
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Sample n°
12112 :
no description available
Minerals: CHALCEDONY (quartz) META-AUTUNITE METATORBERNITE
Year: 1969
Country: France
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Sample n°
14208 :
oval polished stone (2.52 g)
Minerals: AGATE (quartz) CHALCEDONY (quartz)
Year: 1983
Country: India
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Sample n°
11934 :
reniform geodes with yellow and white bands (20 cm)
Minerals: CHALCEDONY (quartz) QUARTZ
Year: 1968
Country: France
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Sample n°
11658 :
thick coating, with well-developed crystals along surface
Minerals: QUARTZ CHALCEDONY (quartz)
Year: 1967
Country: Austria
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