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peculiar Nature, and in particular ſo corroſive that it diſſolves all Veſſels, in this State; juſt as, mixed with the vitriolic Acid, it does the Glaſs of the Retort in the uſual Diſtillation. Mixed with crude Ores, it wonderfully promotes their Fuſion.
A Degree of Fire ſufficient to make the Stone red hot, deſtroys that phoſphoric Light it yields when gradually and gently warmed. Slowly heated, it is phoſphoric, as long as it continues warm: And it burns with a blue Flame without Smell. From theſe invariable Characters it is plain, that it is neither Cryſtal, Spar, Talc, or Selenite; but a diftinct Genus of Foſſil from them all.
It is found green, yellow, white, blue, and violet coloured. The green and yellow are common in Sweden: There is a deep green in Saxony: The blue is frequent in China; and there is ſome in Bohemia: The white and the violet-coloured we have in England.
The foſſile Bodies that approach neareſt to its Nature, are the Swediſh Zeolite; the Bolonian Phoſphorus Stone; and our Star upon the waxen Vein.
But the Zeolite diſſolves in Acids;
The Bolonian Stone efferveſces readily with them, tho' it be not ſoluble; and the Star burns to Plaiſter.
No one of all which Properties belong to this new Stone.
And
