Chemistry:Sagenite
From HandWiki
Sagenite may refer to any of the following types of minerals with an acicular (needle-shaped) crystal habit. It is not a valid mineral species.[1]
- A twinned, reticulated variety of rutile originally described in 1796 by Horace Bénédict de Saussure.
- Rutilated quartz, a variety of quartz with acicular inclusions of often golden-yellow rutile, first called sagenite by George Kunz in 1892.
- Sagenitic agate, a type of agate with acicular inclusions of another mineral such as anhydrite, aragonite, goethite, rutile, or a zeolite.[2][3]
- Any other variety of quartz or chalcedony with acicular inclusions of another mineral.
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Rutile sagenite from Brazil
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Rutilated quartz sagenite
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Sagenitic agate from the Oregon coast
References
- ↑ "Sagenite". Hudson Institute of Mineralogy. https://www.mindat.org/min-8578.html.
- ↑ Lynch, Dan R.; Lynch, Bob (2012). Lake Superior Agates Field Guide. Adventure Publications. pp. 102-105. ISBN 978-1-59193-282-6.
- ↑ Pabian, Roger; Jackson, Brian; Tandy, Peter; Cromartie, John (2016). Agates: Treasures of the Earth. Firefly Books. p. 34. ISBN 978-1-77085-644-8.
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