3°4 
Of Regular Stones . 
Part III* 
('«) Muf. 
Septal. 
Not only Mofcarc/o , but others reckon thefe amongft 
the Ceraunia or Thunder-bolts. So called, beeaufe believed 
fometimes with Thunder to fhootdown with violence out 
of the middle Region. Amongft other Relations hereof, 
that of Terzagi (a') is very exprefs; who faith, That the 
Corps of one {truck dead with Thunder, being mfpeded in 
the prefence of Sept allies, and feveral others, and a black 
Wound obferved about the Hip, and fearched to the hone 5 
they found therein a round and edged Stone , which being 
broken, had a very ftrong fulphurious ftink. With tins 
Author, I fcarce think any thing ot this nature incredible, 
(b) Mufeum po thofe that read the Relation given at large by Wormius ( b ) 
of the Norwegiick. Moufe. 
Thus far ot Regular Stones-, whole cxtci nal Form is C h - 
cumfcriptive , or at leaft depending upon the whole Stone. 
I ihall now defcribe thofe, whole Form is Accumulative ?, or 
where there is a repetition ot the fame figure, or near it, m 
feveral Parts. 
The GRAPE-STONE. Botrites,Wormio. Here are two 
or three forts. One folid, of a yellowifh colour, an inch 
and 1 long, knobed with feveral fmall Clutters, like a young 
bunch of Grapes. 
The HOLLOW GRAPE-STONE, with high Knobs 
or white Berries clufter’d all round about, as in the former, 
and fomewhat thicker. . 
A SEMI-GRAPE-STONE, with white Drops or Berries 
only on one fide. They all make a vehement Effervefcence 
with Acids 5 and are a fort of Stalagmites , next of kin to 
the Confetti di Tibuli before defcnb d. 
The STAR-STONE. After 1 a vera, Boetio. Generally 
of a I or I an inch in Diametre, confiding of feveral Joynts, 
evenly piled one upon another, of a Pentagonal Figure, 
like a Star, and with the fgnature alfool another on both 
fdes, which is compofed ot fhort tranfverfe Stria. When 
broken, it fhines like the Lapis Judaic as, or the Entrocbites , 
to which latter it is next of kin. Sometimes they are 
found tingle. When confiding of more Joynts, it may 
rather be call’d Synafteria. Several both of the joynted and 
tingles ones are here preferved. c 
A very hard Stone , a kind of Pebble with the fgnature ot 
the Afleria upon it. 
Mr. 
