Mineralienatlas - Fossilienatlas
Downeyite (Downeyit) |
Collectors Summary
Color | farblos |
Streak color | weiß |
Solubility | +++ H2O, hygroskopisch! |
Crystal System | tetragonal, P42/mbc |
Chemism
Chemical formula |
SeO2 |
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Chemical composition |
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Analysis wt% |
? SeO2 : 99.00 |
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Strunz 9th edition incl. updates |
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4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate) |
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Lapis Classification |
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IV: OXIDE |
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Classification by Hölzel |
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4: OXIDES |
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Dana 8th edition |
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04: Oxide Minerals |
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IMA status |
Anerkannt von der CNMNC |
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Mineral status |
anerkanntes Mineral |
Optical Properties
farblos |
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weiß |
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transparent |
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RI value α / ω / n |
1.80> |
RI value γ / ε |
1.80> |
2V angle |
Uniaxial (+) |
Crystallography
Crystal Structure 3D
Open larger view |
Physical Properties
4.146 |
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4.16 ( ρ calc. Mineralienatlas ) |
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Instability |
+++ H2O, hygroskopisch! |
(Co-)Type locality
(Co-)Type locality |
Preface
Generation conditions |
an "Fumarolen" an brennenden Kohlenhalden |
Author (Name, Year) |
Finkelman & Mrose, 1977 |
Additional Information |
extremst hygroskopisch, zerfließt innerhalb von Minuten |
Safety Instructions
Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness. ![]() ![]() ![]() Safety classes: H301: Giftig bei Verschlucken., H331: Giftig bei Einatmen., H373: Kann die Organe schädigen bei längerer oder wiederholter Exposition., H410: Sehr giftig für Wasserorganismen mit langfristiger Wirkung., P273: Freisetzung in die Umwelt vermeiden., P304+P340: Bei Einatmen: Die Person an die frische Luft bringen und für ungehinderte Atmung sorgen., P309+P310: Bei Exposition oder Unwohlsein: Sofort Giftinformationszentrum oder Arzt anrufen., P314: Bei Unwohlsein ärztlichen Rat einholen / ärztliche Hilfe hinzuziehen. |
Other languages
German |
Downeyit |
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Spanish |
Downeyita |
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French |
Downeyite |
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English |
Downeyite |
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Russian |
Доунейит |
CNMNC (IMA)-Number
IMA 1974-063 |
CNMNC symbol
Symbol |
Dny |
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Locations with GPS information