Iris Quartz
A variety of Quartz
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About Iris Quartz
Formula:
SiO2
A variety of Quartz
Quartz crystals displaying internal spectral colours under minor rhombohedral faces. This interference phenomenon is due to reflection and refraction on extremely thin parallel Brazil-law twinning lamellae or periodic etching of defects on z faces, resulting in a diffraction grating (Lin & Heaney, 2017). The quartz crystals themselves are generally colourless or faintly amethystine or citrine, and almost always from vugs in basalt or other trap rock.
http://www.mindat.org/article.php/1335/Iris+Quartz
Visit gemdat.org for gemological information about Iris Quartz.
Quartz crystals displaying internal spectral colours under minor rhombohedral faces. This interference phenomenon is due to reflection and refraction on extremely thin parallel Brazil-law twinning lamellae or periodic etching of defects on z faces, resulting in a diffraction grating (Lin & Heaney, 2017). The quartz crystals themselves are generally colourless or faintly amethystine or citrine, and almost always from vugs in basalt or other trap rock.
http://www.mindat.org/article.php/1335/Iris+Quartz
Visit gemdat.org for gemological information about Iris Quartz.Unique Identifiers
Mindat ID:
42133 (as Iris Quartz)
3337 (as Quartz)
3337 (as Quartz)
Long-form identifier:
mindat:1:1:42133:3 (as Iris Quartz)
mindat:1:1:3337:0 (as Quartz)
mindat:1:1:3337:0 (as Quartz)
GUID
(UUID V4):
(UUID V4):
925d03fe-035f-441b-812e-0db7e735974c (as Iris Quartz)
4ca61d6f-75f8-4208-8fb2-3b0eecbcd8f0 (as Quartz)
4ca61d6f-75f8-4208-8fb2-3b0eecbcd8f0 (as Quartz)
Pronunciation of Iris Quartz
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Chemistry of Iris Quartz
Mindat Formula:
SiO2
Elements listed:
Synonyms of Iris Quartz
Other Language Names for Iris Quartz
Common Associates
Associated Minerals Based on Photo Data:
Other Information
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 Iris Quartz
mindat.org URL:
https://www.mindat.org/min-42133.html
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Please feel free to link to this page.
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References for Iris Quartz
Reference List:
Localities for Iris Quartz
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- 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.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Germany | |
| Klaus Schäfer specimen |
India | |
| Kazuhiro Yoshida |
| British Museum of Natural History |
Morocco | |
| Specimen in Spirifer Society Collection |
Uruguay | |
| Jack Lowell specimens |
Burhanpur District, Madhya Pradesh, India