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Youngite

A variety of 'Agate' [Quartz]
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About YoungiteHide

Formula:
SiO2
Local name for agate or jasper coated by druzy quartz crystals. Found near Guernsey, Platte Co., Wyoming, USA, in limestone rocks.

Very good green fluorescence under middle- and short-wave UV light. The chromophore is due to uranyl impurities.


Unique IdentifiersHide

Mindat ID:
39865 (as Youngite)
3337 (as Quartz)
Long-form identifier:
mindat:1:1:39865:5 (as Youngite)
mindat:1:1:3337:0 (as Quartz)

Similar NamesHide

YangiteA valid IMA mineral speciesPbMnSi3O8 · H2O
Youngite (of Hannay)

Pronunciation of YoungiteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Chemistry of YoungiteHide

Mindat Formula:
SiO2
Element Weights:
Element% weight
O53.257 %
Si46.744 %

Calculated from ideal end-member formula.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for YoungiteHide

References for YoungiteHide

Reference List:

Localities for YoungiteHide

ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. Image - Good crystals or important locality for species. Image - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
USA
 
  • Wyoming
    • Platte County
Chris Clemens collection.
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