Minerals

Fossils & Minerals Terrestrial Fossils Terrestrial Misc Marine Fossils Minerals Venator Files

Libyan Desert Silica Glass

Meteoric impact glass from a 30 million year old impact in the Libyan Sahara

A pollished piece of Blue John from Derbyshire UK, actual size

Carnelian from Madagasca, actual size

Labradorite. actual size

Green Island Jasper Madagasca. Actual size

Meteorites from Texas, USA

Tektites

natural glass formed from terrestrial debris ejected during extraterrestrial, meteorite impacts.

Sugilite

Lyme Bay Agate

A Chalcedony Unique to the beaches of LYME BAY in DORSET

Of all Britains native pebbles I find JASPER the most facinating and alluring. It's an opaque CHALCEDONY (SiO2) and is generally red, but yellow, brown, green and grey-blue varieties also occur.Basically it is SILICIFIED CLAY. I have found JASPER  at every locality I have prospected. Most of my collection comes from Norfolk & the Enfield area...

MY JASPER COLLECTION

Various pebbles of Brown Jasper all from Enfield The hardest Jasper to polish due to its poor silica content

 Red Jasper from Enfield, North London

 Green Jasper from Lyme Bay, Dorset


Yellow Jasper from Enfield,North London

Brown Jasper This piece has multi coloured bands

Dalmation Jasper from Australia

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