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: September, 2019


Posted by Site Moderator Webmaster on Wednesday, September 25, 2019, In : Mineralogy 

Duncan Miller

Reproduced by courtesy of the Natural History Museum of Los Angeles County

Every year, the International Mineralogical Association approves the names of many newly discovered minerals ( The requirements are stringent, involving analytical descriptions of both the chemistry and physical structure of any candidate new mineral. Most of these are microscropic and not display-worthy. But every now and then, a new mineral is discovered that not only ...

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Madagascar - the Road to Hell-Ville

Posted by Site Moderator Webmaster on Wednesday, September 25, 2019, In : My Collecting, My Collection 

Mandy Freeman

With a sense of excitement and anticipation of the mineral treasures Madagascar offers, we boarded Air Madagascar on 1st July this year (okay, 4 hours late, but at least on the same day). Our trip was part rock-hunting (obligatory in the Freeman household), and part island-holiday. Boy, were we in for a surprise…

We arrived in Antananarivo, capital of Madagascar where our adventures in a hired 4x4 with driver began. Tana, as it is known, has several stone markets where you...

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