Archiu:Agate 23 (48609868172).jpg
Tamany d'esta vista prèvia: 800 × 518 píxels. Atres/s resolucions: 320 × 207 píxels | 640 × 414 píxels | 1024 × 663 píxels | 1280 × 828 píxels | 1839 × 1190 píxels.
Resolució completa. ((1839 × 1190 pixels, tamany de l'archiu: 1,48 MB, MIME tipo: image/jpeg))
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Summary
| Description |
(~3.2 centimeters across at its widest) "Agate" is a rockhound/collector term for irregularly- & concentrically-layered masses of microcrystalline quartz. Individual layers consist of translucent or opaque, microcrystalline, fibrous quartz called chalcedony. Impurities in different layers cause variations in color. Many agate masses are simply geodes that have completely filled up with quartz. Common agate colors are clearish-whitish-grayish, brownish-red, and yellowish-brown. Commercial agates that occur in greens and blues and purples are almost always dyed (faked). |
| Date | |
| Source | Agate 23 |
| Author | James St. John |
Licensing
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/48609868172 (archive). It was reviewed on 10 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
Historial de l'image
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| Data/Hora | Miniatura | Dimensions | Usuari | Descripció | |
|---|---|---|---|---|---|
| actual | 07:15 10 oct 2019 | | 1839 × 1190 (1,48 MB) | wikimediacommons>Ser Amantio di Nicolao | Transferred from Flickr via #flickr2commons |
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