|
Localities | Smith
& Phillips, 1962 (from Figure 138) |
Webster, 1975
(from
Table 21.1)
|
Ranges
|
|
|
Specific gravity |
Specific gravity | Remarks | ||
Persian
Gulf
|
2.66-2.75 | 2.68-2.74 |
creamy-white* | 2.66-2.75 |
|
Gulf of Mannar | |
2.68-2.74 |
pale creamy-white* |
|
|
Australia |
2.66-2.78 |
--\\ |
|||
Australia, north coast |
|
2.68-2.78 |
silver-white* | } 2.66-2.78
|
|
Australia, north-west coast |
2.67-2.78 |
silver-white* |
--// |
||
Venezuela |
2.65-2.77 |
2.65-2.75 |
white* |
2.65-2.77 |
|
Japan |
<2.65-2.76 | 2.66-2.76 |
white, greenish tinge* |
<2.65-2.76 | |
Florida & Gulf of California |
2.85 (pink conch,
?locality |
2.85 |
pink, etc.** |
2.85 |
|
Gulf of California | 2.61-2.69 (no local given) |
2.61-2.69 |
black |
2.61-2.69 | |
Freshwater
pearls: |
<2.65->2.78 | ||||
North America & Europe |
<2.65 -
2.76 (No.Amer.) |
2.66->2.78 |
white# |
|
|
|
|||||
Cultured
pearls: |
2.705->2.80 | ||||
No locality given |
2.705 - >2.80 | ||||
Japan |
2.72-2.78 |
white* |
|||
Non-nucleated
|
2.67-~2.70 |
||||
Japan |
2.67-2.70 |
white+ |
|||
Australia | ~2.70 |
white* |
R.V.
Dietrich © 2015
Last update: 19 January 2012
web page created by Emmett Mason