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The RRUFF Project is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.
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Name: Alacránite RRUFF ID: R150030 Ideal Chemistry: As8S9 Locality: Solfatara di Pozzuoli, Napoli, Italy Source: Renato and Adriana Pagano [view label] Owner: RRUFF Description: Yellow fine-grained aggregate, associated with red realgar, 2-fold twin around [-1 -1 1]. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
| Mineral Group: [ Not in a structural group (133) ] | ||
| Quick search: [ All Alacránite samples (2) ] | ||
| RAMAN SPECTRUM | ||||||||||||
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| BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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| POWDER DIFFRACTION | |||||||
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| RRUFF ID: | R150030.9 | ||||||
| Sample Description: | Single crystal, powder profile is calculated | ||||||
| Cell Refinement Output: |
a: 9.954(4)Å b: 9.545(3)Å c: 9.128(3)Å alpha: 90° beta: 102.23(1)° gamma: 90° Volume: 847.6(6)Å3 Crystal System: monoclinic |
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| REFERENCES for Alacránite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file] |
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Popova V I, Popov V A, Clark A, Polyakov V O, Borisovskii S E (1986) Alacránite, As8S9–a new mineral, Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 115, issue 3 360-368 [view file] |
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Popova V I, Popov V A, Clark A, Polyakov V O, Borisovski S E (1986) Alacránite As8S9; a new mineral, Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 115, issue 3 360-368 |
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Hawthorne F C, Burke E A J, Ercit T S, Grew E S, Grice J D, Jambor J L, Puziewicz J, Roberts A C, Vanko D A (1988) New mineral names, American Mineralogist, 73, 189-199 [view file] |
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Burns P C, Percival J B (2001) Alacranite, As4S4: a new occurrence, new formula, and determination of the crystal structure, The Canadian Mineralogist, 39, 809-818 [view file] |
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Jambor J L, Roberts A C (2002) New mineral names, American Mineralogist, 87, 355-358 [view file] |
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Bonazzi P, Bindi L, Olmi F, Menchetti S (2003) How many alacranites do exist? A structural study of non-stoichiometric As8S9-x crystals, European Journal of Mineralogy, 15, 283-288 |
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Bonazzi P, Bindi L, Popova V, Pratesi G, Menchetti S (2003) Alacranite, As8S9: structural study of the holotype and re-assignment of the original chemical formula, American Mineralogist, 88, 1796-1800 [view file] |
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Bonazzi P, Bindi L, Pratesi G, Menchetti S (2006) Light-induced changes in molecular arsenic sulfides: State of the art and new evidence by single-crystal X-ray diffraction, American Mineralogist, 91, 1323-1330 [view file] |
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Bonazzi P, Bindi L (2008) A crystallographic review of arsenic sulfides: Effects of chemical variations and changes induced by exposure to light, Zeitschrift für Kristallographie, 223, 132-147 |
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Ballirano P (2012) Thermal behavior of realgar As4S4, and of arsenolite As2O3 and non-stoichiometric As8S8+x crystals produced from As4S4 melt recrystallization, American Mineralogist, 97, 1320-1329 [view file] |
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Pratesi G, Zoppi M (2015) An insight into the inverse transformation of realgar altered by light, American Mineralogist, 100, 1222-1229 |
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