Part III. Of. Gems. 287 
folution of them , only powder'd 5 colour d fomewhat 
like a folution of Gold, (a) ' 
The Jewelers TOPAZ. Chryfeletlron Vlini'j. This is an 
Oriental que. 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 yellowifh 
Tincture. They grow in Arabia, Bohemia, i&c. The beft in 
India and Batlriana : the Europeans, efpecially, being foft, 
and not without blackifh Clouds. The Oriental, the hard- 
er!: of Gems, except the Diamond. And probably the Ruby. 
Found fomctimes fo big as to weigh twelve pounds, (b) < b ) Bo ^ ^ e 
/Es uftum,ftannum uftum, Cinabar, and Cryftal, melted toge- 
ther, imitate a Topa%. (c) . (c) Aidrov. 
The SMAR AGDUS, growing together with a pale Ame- M ' MctalL 
thy ft in one Matrix. The Cryftals are angular, but feem to 
hold no proportion. 
The Occidental, fomctimes as big as a mans fill, efpecially 
in Peru 3 but foft and cloudy. The Oriental^ no bigger 
than a Filbert. The Europeans, in Cyprus, tec. the worft. 
Tis imitated (d) with Ms uftum, and half as much Crocus *r^f 
MartlS. drov. M. 
Met.) «// of 
Six Grains of this Stone, in powder, procureth fweat. 
Porta. 
Applied entire to the Belly ,ft opeth all kind of Dyfenetries in ( C ) Muf. 
a miraculous manner. (/) Wormian, 
A CLEAR and GREEN STONE, (a kind of Smarag^Lc^ 
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 myfelf 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 continud to lhine : but after 
that, recover d its native green again. 
The AGATE. So called from the River Achates in 
Sicily jnza£ which it was firrt found.(g) Almoft of the colour ^ ™ eophri 
of clear Horn. The harder! of Semiperfpicuous Gems. They c ap ' 
grow in India, Germany, Bohemia. Naturally adorned with 
much variety of waved and other figured Veins, Spots, the 
reprefentation of Vegetable, and fomctimes of Animal 
Bodies. None more memorable, than that mention d 
by 
