Silica phase-transformations during diagenesis within petrified woods found in fluvial deposits from Thailand–Myanmar

Petrified woods typically form in two geological environments,
1) trees transported by streams and rivers become buried in...
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Dickite: a gem material for carving from Thailand

Dickite (Al2Si2O5(OH)4) from Saraburi, Thailand, is a raw material
for the ceramics industries. It is also an ornamental gem...
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