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Å‹ß‚É‚È‚Á‚ÄŽYo‚ª’m‚ç‚ê‚é‚悤‚É‚È‚Á‚½ŠÜ“ºƒŠƒfƒBƒR[ƒ^ƒCƒg‚ÍCuO‚ð0.2`0.6%ŠÜ—L‚µ‚Ä‚¨‚èA“¯Žž‚ÉPbO‚ð0.1`0.2%ŠÜ—L‚µ‚Ä‚¢‚é‚Ì‚ª“Á’¥‚Å‚ ‚éB A review of Gem
Research Last year, copper bearing liddicoatite are discovered, and has been revived to
discuss about definition of '
The measurement data of chemical
composition using EDXRF show high Ca content and low Na content. Its belong to liddicoatite and the
first occurrence of copper bearing tourmaline except elbaite
tourmaline. After careful discussion in LMHC and AGL(
This review summarize the characteristics
of
Latter half of the 1980th,
copper bearing tourmaline is discovered from 'Mina da
Batalha,Sao Jose da Batalha,Paraiba state,
Definition of 'Paraiba tourmaline' is
both of copper and manganese bearing blue to green elbaite,
because of the tourmaline from this locality is belong to elbaite.
Copper bearing blue tourmaline from this locality contain range from 2 to
2.9wt% total copper as CuO, using our EDXRF(JEOL JSX3600M).
Latter half of the 1990th, two
mining districts in Lio Grande do Norte are produced
a lot of 'Paraiba tourmaline', and become to major producer of '
After in the 2000th, copper
bearing blue tourmaline is discovered from
The middle of 2005, copper bearing
tourmaline is discovered from Alto Lingonha
Recently, copper bearing liddicoatite is discovered, and characterized by contain
both of copper(0.2 to 0.6wt% total Cu as CuO) and lead(0.1 to0.2wt% total Pb
as PbO).
§542-0083
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