gratonite
Sign in to saveGratonite is a lead-arsenic sulfosalt mineral, with the chemical composition Pb9As4S15. It is considered a low-temperature dimorph of jordanite. Gratonite was discovered in 1939 at the Excelsior Mine, Cerro de Pasco, Peru. It is named in honor of geologist L. C. Graton (1880–1970), who had a long-standing association with the Cerro de Pasco mines. The other location where it is found is the Rio Tinto mine, Minas de Riotinto (Huelva), Spain. The crystals are very similar to those from Cerro de Pasco.
In the Vinony graph
Within Vinony's link graph, gratonite is referenced by 7 other articles, and connects out to Peru, International Standard Book Number and digital object identifier.
It sits within the topics Arsenic minerals, Lead minerals and Minerals in space group 160.
Its subject is documented across 9 Wikipedia language editions.
Key facts
- Mineral.name
- Gratonite
- Mineral.image
- Gratonite-20896.jpg
- Mineral.imagesize
- 260px
- Mineral.caption
- Gratonite, Excelsior Mine, Cerro de Pasco, Peru, the type locality. 1.7 x 1.6 x 1.5 cm.
- Mineral.category
- Sulfosalt minerals
- Mineral.formula
- Pb9As4S15
- Mineral.IMAsymbol
- Gtn
- Mineral.strunz
- 2.JB.55
- Mineral.system
- Trigonal
- Mineral.class
- Ditrigonal pyramidal (3m) (same H-M symbol)
- Mineral.symmetry
- R3m
via Wikipedia infobox
Wikidata facts
- Image
- Gratonite-rare08-42b.jpg
Show 8 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 2.JB.55
- chemical formula
- Pb₉As₄S₁₅
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 2.JB.55
- crystal system
- trigonal crystal system
- Commons category
- Gratonite
- Mohs' hardness
- 2.5
- IMA Mineral Symbol
- Gtn
- Strunz 8th edition (series ID, updated)
- II/D.06
Sources (2)
via Wikidata · CC0
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Encyclopedic overview
2 sectionsContents
- References
- External links
Gratonite is a lead-arsenic sulfosalt mineral, with the chemical composition Pb9As4S15. It is considered a low-temperature dimorph of jordanite. Gratonite was discovered in 1939 at the Excelsior Mine, Cerro de Pasco, Peru. It is named in honor of geologist L. C. Graton (1880–1970), who had a long-standing association with the Cerro de Pasco mines. The other location where it is found is the Rio Tinto mine, Minas de Riotinto (Huelva), Spain. The crystals are very similar to those from Cerro de Pasco.
==References==
Excerpted from Wikipedia’s “gratonite” article, available under the CC BY-SA 4.0 licence.