Part III. Of Gems. 287 
folution of them , only powder d 5 colour d fomewhat 
like a folution of Gold, {a) 1 C« ibid. 
The Jewelers TOPAZ. Chryfeletlron Plhiij. This is an 
Oriental one. Tis of a perfpicuous Golden colour, with 
fome fcarlet fpots or like a deep Tincture of Saffron. 
The Whiter or Female TOPAZ. Compofed of feveral 
Cryftals, clear and colourlefs at the top 3 below, clear and 
yellow. Growing on a white Matrix, with a light yello wifh 
Tincture. They grow in Arabia, Bohemia, <b'c. The bell in 
India and Batlriana : the Europeans, efpecially, being foft, 
and not without blackilh Clouds. The Oriental, the hard- 
eft of Gems, except the Diamond. And probably the Ruby. 
Found fometimes fo big as to weigh twelve pounds, (b) (h ) Boet - dc 
/Esuftum, ft annum uftum, Cinabar, and Cryftal, melted toge- m * 
ther, imitate a Topaz, (c) (c) Aidrov. 
The SMARAGDUS, growing together with a pale Ame- M * MetalL 
thy ft in one Matrix. The Cryftals are angular, but feem to 
hold no proportion. 
The Occidental, fometimes as big as a mans fift, efpecially 
in Peru 3 but foft and cloudy. The Oriental^ no bigger 
than a Filbert. The Europeans, in Cyprus, <tsc. the worft. 
? Tis imitated (d) with JEs ujium, and half as much Crocus ^ 
Mart'lS. drov. M. 
Six Grains of this Stone, in powder, procureth fweat. (e) m f 
Applied entire to the Belly ,ftopeth all kind of Dyfe?ietries in ( e) Muf. 
a miraculous manner. (/) Wormian. 
A CLEAR and GREEN STONE, (a kind of Smarag- fii^ 
dus) which, being heated red hot, fhineth in the dark for nerius « 
a confiderable time, fc. about » 6 th of an hour. Given by 
Dr. William Crown. I tried the experiment my felt alfo. 
And at the fame time obferv'd, That as it grew hot in the 
fire, its Green colour was changed into a Sky-blew 3 which 
it likewife retain d fo long as it continu d to Ihine : but after 
that, recover d its native green again. 
The AGATE. So called from the River Achates in 
Sicily ^.21 which it was firft found.(g) Almoft of the colour ^J^ 0 ^' 
of clear Horn. The hardeft of Semiperfpicuous Gems. They 
grow in India, Germany,Bohemia. Naturally adorned with 
much variety of waved and other flgur d Veins, Spots, the 
reprefencation of Vegetable, and fometimes of Animal 
Bodies. None more memorable , than that mention d 
by 
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