Stilbite Enlarge
JS July 1 1816.
British Mineralogy
Silex fulgens


Stilbite is partly distinguished by the peculiar lustre of the surfaces of its lamina, resembling some sorts of Gypsum, such as tab. 233. which figure is from a specimen of a silver or satin like lustre, and partly talcose aspect; a character that it is scarcely possible to represent, but which is eminently conspicuous in the specimen I have here figured from Scotland. The crystals upon it are rectangular prisms, the faces of which are primitive; it is a rare form: the nucleus, according to Haüy is a very short prism, although the crystals generally assume an elongated one.

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