I have been working with Larimar for the last while now and it is
not an easy stone to work with. Anthony Lloyd-Rees pretty much said
Out of every ten stones I cut, four would die in my hands..
I bought $600 worth of top grade material and the better the
material ( that is to say, the most blue) the stronger it is.
However I have not been able to facet a piece yet and I have tried
several times with the best material. Maybe I was just unlucky, but
the darned stuff always expires on the 1200 lap, not the 220 lap as
logic would dictate.
I have also stabilized the material with a little success, by
dunking it in polyester resin and then vacuuming it. Worked so, so,
and I don't use it in my jewellery because of the treatment.
A while ago someone asked about tumbling Larimar. I took all my
offcuts and low grade pieces and dumped them in my small tumbler
with 120 grit for a couple of days. No problems were encountered. I
did not bother to polish it up, but I have no doubt that Larimar
will polish like any stone of comparable hardness.
The opening page of my website has a piece of Larimar cut in the
shape of the island of St,Maarten, set in a 18ct gold and titanium
composite pendant.To say the least, I sweated blood to finish the
Larimar. Any other questions are welcome.
Cheers, Hans Meevis