petrified wood

A stone that once grew organically could be a description of just a few minerals, petrified wood is one of them, also known as fossil wood, agatised wood...
Although found in several locations around the world, USA, Europe, Japan, Australia our story is about petrified wood from Madagascar which is often prized as the source of the better colour examples with popular vivid reds and greens.

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amazing zeolites from india

by Barry Taylor

My all time favourite minerals are the spectacular Zeolites from the Deccan Plateau region in India, this is a flood Basalt deposit that formed over several million years.
This is one of the largest volcanic features on earth and covers 163,000 square miles to a depth of 6,500 ft, the area covered by lava incorporates eight seperate states of India and covers a large part of the country.

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Mexican Opal

by Dave Gibson
Opal was known to the Aztecs by the name Vitzitziltecpa which means hummingbird stone, due to its similarity to the bright iridescent colours of the birds plumage. The original mining locations were lost during the Spanish conquest. They were rediscovered sometime in the early 1800's in the state of Queretaro, some 130 miles North West of the Mexico City.

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irish minerals

by Patrick Gaffikin

Go, my sons, buy stout shoes, climb the mountains, search the valleys, the deserts, the sea shores, and the deep recesses of the earth. Mark well the various kind of minerals, note their properties and their mode of origin.
Petrus Severinus, a Danish physician. (1542-1602)

What are minerals?
A mineral is a naturally occurring inorganic solid with a definite chemical composition.

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Subcategories

To see a list of mineral, crystal, gemstone, fossil shows/events both UK and worldwide visit our show page, if you organise or know of a show please get in touch to list it here.