F4 
room viii, j aS p er ^ & c> Scotch and other plain and striped 
Nat. Hi*t, flints, cut and polished. Precious opal of brilliant 
colours., disseminated in a dissolved porphyritic 
mass ; a large opal set in a ring: semiopal : 
variety usually called Oculus mundi, becoming 
transparent when immersed in water (a polished 
oval piece in a case). Pitch stone; tuberose 
stone or menilite, from Menil Montant near 
Paris, where alone it has been hitherto found. 
Woodstone or petrified wood (in one of the 
specimens the pores are completely preserved). 
Calcedony in stalactitical and other forms: an 
/ egg-shaped piece of calcedony, containing water 
(enhydros) ; cacholong or calcedony in a state 
of decomposition, &c.; carnelians: a druse with 
red quartz crystals ; a case with rings of mocca 
stones, &c. 
(Div,6.) Various agates: jasp-agates, fortifi¬ 
cation agates, onychine agates, moss agates, &c 0 — 
Mealy, fibrous, foliated zeolite ; cubicite, &c. ;■ 
cross stones (Harmotome Haiiy). Large oval 
piece of azure stone (lapis lazuli). 
(Div. 7 .) Soapstone or steatite ; a species of 
jade of which the Chinese carve figures and small 
vessels; nephritic stone, called axe-stone, from 
New Zealand, where the natives make hatchets^ 
&c. of it. Precious and common serpentine, 
diallage, smaragdite, &c. Common or Venetian 
talc 
