Teeth of the largest land predator that ever lived! The Spinosaur. This Dinosaur could be up to 15 meters long!
Teeth of the largest land predator that ever lived! The Spinosaur. This Dinosaur could be up to 15 meters long!
Obsidian is natural glass made from rapidly cooling lava. It has been used for centuries by all great civilisations.
Obsidian is natural glass made from rapidly cooling lava. It has been used for centuries by all great civilisations.
The mineral aragonite is a polymorph of calcite with its own crystal structure. It has a grounding effect and can occur ...
Very special fluorite that changes from green to purple under the UV radiation of daylight! A fantastic phenomenon that ...
Serpentine, with its green colour reminiscent of a snake, has been popular for centuries for making decorative objects a...
Serpentine, with its green colour reminiscent of a snake, has been popular for centuries for making decorative objects a...
Very special fluorite that changes from green to purple under the UV radiation of daylight! A fantastic phenomenon that ...
Amethyst is a purple quartz variety that can discolour when heated or exposed to sunlight. Amethyst has calming and clar...