Photo of the Day

This is a very rare example of light blue grandviewite spherules on matrix from the locality where it takes its name, the Grandview Mine in the Grand Canyon, Arizona, USA. Grandviewite is a rare copper sulphate mineral known only from this locality (also the Type Locality) and the Lavrion District in Greece. This particular specimen

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eBay Sale Just Started

My annual January eBay sale has just started and will last for the next 2 weeks with 25% off the majority of specimens. Feel free to browse through the specimens here and remember that I only charge the actual postage cost plus around 50p for packaging on all my orders, so multiple items can be

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Photo of the Day

One of my favourite local mineral localities is without doubt the Mourne Mountains in County Down. Although they form a relatively small, and not particularly high, range of mountains, they have quite a complex geological history, something which I think makes them very fertile ground for the inquisitive mineral collector. From albite to zeolites and

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Photo of the Day

This photo shows an attractive combination of fluorescent scheelite and powellite from the Golconda Summit locality, Nevada, USA. The scheelite produces a blue/ white colour under short wave UV light whilst the powellite fluoresces a bright yellow colour. The two minerals are actually end members of a series of minerals with scheelite being a calcium

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NEW Photo of the Day

Happy New Year to everyone and best wishes for 2016!! I’ve decided to start this year by adding a new regular feature to this website and my Facebook page – a Causeway Minerals Photo of the Day. Clearly very similar to another well known mineral website feature!!!…. but this will be my opportunity to share

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