Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. Agate, chalcedony formed from layers of quartz and often treacle-brown, has long been associated with 1970s ...
THIS exquisite image captures the astonishing internal structure of crazy lace agate, also known as Mexican agate. This section of the mineral is some 65 million years old. Agate is related to quartz ...
In an era where concious fashion reigns supreme, quartz stone is fast becoming the darling of the jewellery world — and for good reason. Riding the wave of this newfound appreciation, bijouterie label ...