f 
: 
c 
; 
See 
wie 
W. BP. Blake—New locality of Chalchuite. 199 
Such on a vanish before the specimens of chalchuite as 
they come from the mine. Large masses do not occur without 
earthy eet eevee and mixtures of a yellow color. e 
mode of origin and the accretion of more or less rounded semi- 
globular crusts in the cracks of the rock often leave spaces 
fistulous form, and these are Sepeepe filled by earthy fopasie 
colored by iron oxide. In the selection of masses for jewels 
such imperfections fear re =i pane of course do not appear 
in the turquois of co 
That the stone of sete Pliny treats is not a transparent 
gem seems to be clearly shown by the statement of the effect 
of oil or — upon it. He evidently is describing au a 
ent stone, a porous and consequently opaque mass. It is 
interesting fact that the Pueblo Indians at this day resort to the 
expedient of soaking the chalchuite in tallow or grease to 
heighten the color aid to make the tint of the larger tpi: 
more uniform. The grease is taken u the more poro 
and softer parts of the stone, while the harder portions oes a 
deeper tint do not absorb it. Ben Mansur, in pobre 8 pad 
turquois, also refers to the improvement of the color of s 
sorts of the stone by steeping in oil. Damour* reli the greet: 
colored hydrous phosphate of alumina ornaments, found in a 
Celtic grave, to the callais of Pliny, especially in view of the 
green color. The mineral is evidently a somewhat altered 
green turquois and is not specifically different, but is well enti- 
tled to the name callainite, the modified form of Pliny’s name 
proposed by Professor Dana.t The name turquois is certainly 
unsatisfactory for the species. Callais or callaina and also chal- 
with the terminology of the nomenclature of the science. 
Moreover they are not misleading as turquois (Turkish stone) 
is in regard to the source of the gem. Although some of the 
ties in Puria: at Nichabour an t Firusku in the province of 
Erak. One of Arn eho pa that the turquoises were 
there called “firuses,” and King mentions Firuzegi as the 
name of Persian turquois. SSicuehian ii, 225, quoting from 
Chardin, says the turquois is found in ‘a mountain name 
* Phirous,” between Hircania arid Parthide. Again the name 
turquois is applied to the blue fossil bone or ivory, called also 
the Occidental turquois and odontolite, of which large quan- 
tities were eames and are still, used in jewelry. 
* Compt. stots lix, 9! + Dana’s pererad 5 edit., p. 572. 
Buffon, Histoire salons des Mineraux, 1790, vi 
Adin Gieurian, Voyage, &c., Paris, 1656, p. i, 4 
