{"id":4807,"date":"2021-10-20T11:40:34","date_gmt":"2021-10-20T03:40:34","guid":{"rendered":"https:\/\/jiehonggem.com\/?post_type=product&p=4807"},"modified":"2022-05-06T10:45:12","modified_gmt":"2022-05-06T02:45:12","slug":"mbko761","status":"publish","type":"product","link":"https:\/\/jiehonggem.com\/zh\/shop\/mbko761\/","title":{"rendered":"MBKO761"},"content":{"rendered":"
Effect: chalcedony is dyed to practically all colors for various uses; the bands in agate and Onyx accept dye differently so that a green dye, for example, may impart color to some layers and leave others white.
\nPrevalence: common
\nDetection: appearance (color often looks unnatural), spectrum, Chelsea filter reaction, SG (dyed green often lower (2.60 or less) than chrysoprase)
\nStability: generally stable
\nSpecial Care Instructions: none<\/p>\n
<\/p>\n
Sources: Brazil, Uruguay
\n<\/b><\/p>\n
<\/p>\n
Gem Reference Guide, Published by GIA. ISBN 0-87311-019-6<\/span><\/p>\n Gemstones of the World, Published by Sterling Publishing Co., Inc NY, ISBN 1-4027-4016-6<\/span><\/p>\n Encyclopedia of GEMSTONE, Published by ISHINSHA CO., LTD. ISBN 978-986-251-831-1<\/span><\/p>","protected":false},"excerpt":{"rendered":" Black Onyx chalcedony (kal-SED-uh-nee) is microcrystalline or cryptocrystalline quartz; hexagonal (trigonal) crystal system; chemical composition SiO2 semitransparent to opaque solid black, no banded, milky chalcedony with dyed treatment Identification Optic Character: AGG Refractive Index: 1.535-1.539; 1.53 or 1.54 spot reading Birefringence: usually not detectable, but may show .004 Pleochroism: none\u00a0 Ultraviolet Fluorescence: generally inert (LW […]","protected":false},"featured_media":4813,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_cat":[197],"product_tag":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/jiehonggem.com\/zh\/wp-json\/wp\/v2\/product\/4807"}],"collection":[{"href":"https:\/\/jiehonggem.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/jiehonggem.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/jiehonggem.com\/zh\/wp-json\/wp\/v2\/comments?post=4807"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jiehonggem.com\/zh\/wp-json\/wp\/v2\/media\/4813"}],"wp:attachment":[{"href":"https:\/\/jiehonggem.com\/zh\/wp-json\/wp\/v2\/media?parent=4807"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/jiehonggem.com\/zh\/wp-json\/wp\/v2\/product_cat?post=4807"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/jiehonggem.com\/zh\/wp-json\/wp\/v2\/product_tag?post=4807"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}