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Silica
FAMILY: Natural Glass
COLOR: Colorless To Dark Brown, Gray To Black
MOH'S HARDNESS: 6
DENSITY: 2.648
TRANSPARENCY: Translucent
OCCURRENCE: Very Common
ORIGIN: Czech Republic, Germany, Romania, Switzerland, Cumbria, Russia,

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C188 AP104
1983 15 Jan
New Caledonia

2005 01 Sep
Mexico

2005 01 Sep
Mexico

2005 01 Sep
Mexico


2005 01 Sep
Mexico

2005 01 Sep
Mexico
2637a A922
2010 13 Mai
Sweden
 
Display Your search for Silica resulted in 7 Stamps