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


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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