<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>R. G. Coleman</dc:creator>
  <dc:date>1961</dc:date>
  <dc:description>&lt;p class="chapter-para"&gt;Tectonic inclusions within the New Idria serpentine body contain jadeite in two distinct assemblages: (1) Lenslike inclusions containing a monomineralic green jadeite core surrounded by a calc-silicate rim. (2) Jadeite veins cross-cutting albite-crossite schist inclusions. In these veins jadeite coexists with low albite; green jadeite (Jd 75 Ac+Di+He 25) coexists with low albite within the host schist.&lt;/p&gt;&lt;p class="chapter-para"&gt;Albite schists are related to the pre-metamorphic keratophyres and it can be shown that desilication of such rocks produces a bulk composition similar to that of jadeite. Metamor-phism of keratophyric tectonic inclusions within serpentine produced jadeite-albite schists along margins of the inclusions. Jadeite-albite veins formed from mobilized liquids rich in the jadeite molecule and deficient in water. Geological evidence such as would indicate extreme pressures or temperatures during jadeite formation is lacking; rather, a low silica and dry system allowed its formation at reduced temperatures and pressures.&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1093/petrology/2.2.209</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Oxford University Press</dc:publisher>
  <dc:title>Jadeite deposits of the clear creek area, New Idria district, San Benito county, California</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>