322 
Of SVfetah. 
(a) Vr. 
Brown’s 
TV avails, 
p. 99- 
(b) P. 103. 
(c) lb. p. 99 - 
Part III. 
Sect. II. 
Of METALS. 
CHAP. I. 
Of gOLD , SILVER, and COPPER 
G OLD ORE of HERNGRUNT,holding Silver. Given 
by Dr. Edward Brown. It confifteth of {parks of a 
Liming Gold-colour, together with fome Black ones, al¬ 
ternately immerfed in a white and pretty hard Stone. 
GOLD ORE of Chremnitz^ Given by the fame Hand. 
Here are feveral pieces. One white, and fenaiperfpicuous. 
Another,blackifh,not much unlike fome Flints. The others, 
mixed of both. All fo hard, as to write upon Glafs. Yet 
Spirit of Nitre droped on them, in a little while, will fink 
into them, almoft as Water into a Bolus. Which perhaps 
may depend upon fome invifible Cracks in the Ore. 
That with black fpots in white, is accounted the bed. (a) 
In an 100 /.weight of Ore , is contained about fj of Gold, 
holding one third part of Silver, (b) In this Mine, fome- 
times are found pieces of pure (c) Virgin-Gold. This, by 
fome, is called Aurum Obryzum: qu. Ophrifum, like that ot 
Ophir. Of feveral particulars ot the Working here, and 
ot feparating the Gold from the Ore, with the Engines, &c. 
See the foremcntioned Doctors T<■ avails. 
GOLDEN SAND, from the River Tagus. Tis very 
fine, and ponderous; confiding of Grains of a redifh Iron 
colour mixed with black. 
A lump ot pure GOLD of the bignefs of a Peas, melted 
out of the forementioned fand. 
GRAIN GOLD,or Golden Sand from the River Danuby. 
Given by John Bembde Efq; taken thence with his own 
hand. Very fine as the former. Confiding modly of black 
Grains, wherewith are mixed fome of a pure Gold colour; 
in the proportion of about one to twenty. 
SAND 
