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Minerals:Cabinet Specimens, AMAZONITE. Big Indian Project, Divide, Teller Co., Colorado,USA. ...

As a chemist, this is the most pure specimen of gold I have even set my eyes on. I spent a year measuring the purity of gold for the treasury, and I must say that I have never seen a specimen of such beauty and purity.

Minerals:Cabinet Specimens, BOULDER OPAL. Queensland, Australia. ...

Tourmaline Specimen. Wow, I would love to have a gemstone cut from that tourmaline.

Veszelyite from the Black Pine Mine in Montana

Stunning specimen featuring Tourmaline var. Indicolite crystals with Topaz and Quartz on Albite. Shigar Valley, Northern Areas of Pakistan

aluminium phopshate wavellite. It was discovered there by John Hill in the late eighteenth century and named for William Wavell a local physician and #mineral collector. (photo by Crazy Dave Green on Flickr)