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<p>[QUOTE=&quot;all_fakes, post: 253823, member: 55&quot;]I would clarify.&nbsp;&nbsp; In jewelry, there may be different usages, but in mineralogical terms, &quot;Chalcedony is a generic name given to materials that are composed of microcrystalline quartz. Agate and jasper are both varieties of chalcedony....agate is a translucent to semitransparent chalcedony.&quot;</p><p>If there are bands, it is likely agate, though other kinds of chalcedony may also be banded.&nbsp;&nbsp; It depends on the degree of translucency, though &quot;observing bands in a specimen of chalcedony is a very good clue that you have an agate.&quot; With a small inclusion, in a photo, it is probably not possible to differentiate agate and other types of chalcedony.&nbsp;&nbsp; But they are basically the same material.&nbsp;&nbsp; Jasper is the same stuff, but opaque; and they are all varieties of quartz.</p><p>See <a href="http://rocktumbler.com/blog/what-is-agate-jasper-chalcedony/" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://rocktumbler.com/blog/what-is-agate-jasper-chalcedony/" rel="nofollow">http://rocktumbler.com/blog/what-is-agate-jasper-chalcedony/</a></p><p><br /></p><p>This is very likely jasper, and the inclusion is some kind of chalcedony, likely agate.[/QUOTE]</p><p><br /></p>

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