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<TD><H1><A HREF=http://store.unconventionallapidarist.com/Category685>Lapidary Rough</A> / <A HREF=http://store.unconventionallapidarist.com/Category1109>Agate</A> / Moss Agate</H1></TD>
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<P><p><b>Moss agate</b> (also called <b>mocha stone</b>) is a <span class="mw-redirect">semi-precious</span> gemstone formed from silicon dioxide. This mineral is commonly found in limestone and granite. It is a form of agate which includes minerals of a green colour embedded in the chalcedony, forming filaments and other patterns suggestive of moss. It also sometimes resembles blue-cheese. The field is a clear or milky-white quartz, and the included minerals are mainly oxides of manganese or iron.
Moss agate is of the white variety with green inclusions that resemble
moss. It occurs in many locations. The colors are formed due to trace
amounts of metal present as an impurity, such as chrome or iron. The
metals can make different colors depending on their valence.</p>
<p>Despite its name, moss agate does not contain organic matter and is usually formed from weathered volcanic rocks.</p>
<p>Montana moss agate is an agate found in the alluvial gravels of the Yellowstone River and its tributaries between Sidney and Billings, Montana.
The agate originally was formed in the Yellowstone National Park area
of Wyoming as a result of volcanic activity. In Montana moss agate the
red color is the result of iron oxide, the black is there result of
manganese oxide.</p>
<p><font class="font2">This article is licensed under the
<a target="_blank" rel="nofollow" title="http://www.gnu.org/copyleft/fdl.html" class="external text" href="http://www.gnu.org/copyleft/fdl.html">GNU Free Documentation License</a>.
It uses material from the <a target="_blank" rel="nofollow" title="http://en.wikipedia.org/wiki/Moss_agate" class="external text" href="http://en.wikipedia.org/wiki/Moss_agate">Wikipedia article "Moss Agate"</a></font></p>
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<BR clear=left><BR><P><A HREF=http://store.unconventionallapidarist.com/Product21080 TITLE="Moss Agate Rough"><IMG SRC="https://store.nexternal.com/lapidarist/images/t_agatrgh1057.jpg" ALIGN=left ALT="Moss Agate Rough" NAME="Moss Agate Rough" BORDER=0></A>
<A HREF=http://store.unconventionallapidarist.com/Product21080 TITLE="Moss Agate Rough">Moss Agate Rough</A>
-- <B>$14.00</B>
-- Moss Agate Rough ( 3.7" x 3.2" x 2.1" )</P>
<BR clear=left><BR><P><A HREF=http://store.unconventionallapidarist.com/Product21081 TITLE="Moss Agate Rough"><IMG SRC="https://store.nexternal.com/lapidarist/images/t_agatrgh1058.jpg" ALIGN=left ALT="Moss Agate Rough" NAME="Moss Agate Rough" BORDER=0></A>
<A HREF=http://store.unconventionallapidarist.com/Product21081 TITLE="Moss Agate Rough">Moss Agate Rough</A>
-- <B>$20.00</B>
-- Moss Agate Rough ( 3.8" x 3" x 2.2" )</P>
<BR clear=left><BR><P><A HREF=http://store.unconventionallapidarist.com/Product21082 TITLE="Moss Agate Rough"><IMG SRC="https://store.nexternal.com/lapidarist/images/t_agatrgh1060.jpg" ALIGN=left ALT="Moss Agate Rough" NAME="Moss Agate Rough" BORDER=0></A>
<A HREF=http://store.unconventionallapidarist.com/Product21082 TITLE="Moss Agate Rough">Moss Agate Rough</A>
-- <B>$12.00</B>
-- Moss Agate Rough ( 2.9" x 2.1" x 1.8" )</P>
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