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Phosphosiderite — specimen 0605, photo © NMNHS
Phosphosiderite
—
specimen 0605
Origin
no locality data
Data
Weight:
5.16 ct;
size:
13.90 | 9.88 | 4.93 mm;
shape:
oval;
colour:
medium bluish violet; slightly greyish;
clarity:
opaque;
cut:
fair;
treatment:
none.
Notes
Clean specimen; cabochon style cut.
Other specimens
More information from ‘Classification’
Phosphosiderite
Typically an alteration product of
triphylite
in zoned complex
granite
pegmatites
(
Anthony et al., 2001—2005
).
Gemmology — gemstones
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