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Geology
B
Alphabetical index
123
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Bacillary
The term bacillary is used in biology and ...
Barchan
A barchan is a crescent-shaped dune advancing over hard ...
Basalt
Basalt is an effusive igneous rock with a crystalline ...
Basic rock
Basic rock is igneous rock containing 45% to 52% of SiO2 ...
Bauxite
Bauxite is a residual rock rich in aluminium oxides and ...
Bedded
Bedded means occurring in beds, layers.
Biaxial
Biaxial crystals have two optical axes perpendicular to two ...
Biofuel
There are many types of biofuel - from traditional firewood ...
Bituminous shale
Bituminous shales are rocks containing organic substances ...
Blende
Blende is the old name for sphalerite (ZnS).
Bonanzas
Bonanzas are areas rich in gold or silver in certain deposits
Botryoidal
A botryoidal element is one that has a clustered shape. In ...
Boxwork
Boxwork is the name given to cavities left by the ...
Breccia
Breccia is rock formed by the accumulation of angular ...
BRGM
The BRGM (for Bureau de recherches géologiques et minières ...
