From mid-2021, newsletter articles are no longer posted separately here. Interested readers should scan through the newsletter headings under the ‘Newsletters’ tab.

FACETIPS – A GEM CUTTER’S NOTEBOOK

by
Duncan Miller


The faceting articles published over the past few years in the Mineral Chatter have been compiled into a single 128 page document, available for download for those interested in saving all the articles together. To download the pdf file click here.

A 29,18 ct cuprite from Onganja, Namibia, cut by Duncan Miller and now in a private collection in Germany.


Browsing Archive: May, 2015

The Romance of the Stone

Posted by Site Moderator Webmaster on Friday, May 22, 2015, In : Lapidary 

 “The Romance of the Stone?!”

 

 

-        excitement at having found a special piece of rough that asks for faceting

-        carefulness to get the right design for the rough

-        caution by previewing the new design on GemCad first

-        fear to start new designs or try different types of stones

-        bravery to just do it

-        patience to remove the initial surplus rough and reach the centre point and s...


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Skorpion Zinc mine – another new mineral discovered

Posted by Site Moderator Webmaster on Saturday, May 2, 2015, In : Mineral of the Month 
By Gisela Hinder

The Skorpion Zinc deposit is a complex, non-sulphide zinc orebody situated in a paleo-channel fill overlying rocks of the Port Nolloth Zone of the Gariep Belt about 20 km north-west of the little mining town Rosh Pinah, Karas Region, Namibia.
The Skorpion Zinc mine is the 8th largest Zinc Mine in the world and a world-class integrated mining and refinery operation. Skorpion Zinc's annual capacity is 150 000 tons of Special High Grade zinc.
The zinc-oxide is mainly hosted by arko...

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