Durnford Quarry
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Geoff
inspecting a collection of calcite crystals.
At this location
one could expect to find Goethite, Quartz, Calcite, Rhodochrosite and
other manganese minerals.
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Cavity lined with tiny sprays of goethite needles. (Nicola's collection)
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Detail of goethite needles.
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Another example of goethite needles lining a cavity in massive goethite
(John's collection)
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More Goethite with tiny Baryte crystals attached.
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Small isolated Baryte crystals on massive Goethite.
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Baryte on goethite
matrix (John's collection)
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Detail of baryte
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Goethite lined cavity in massive goethite with quartz crystals.
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Detail of quartz crystals.
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Massive Rhodochrosite
(Nicola's Collection)
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More Rhodochrosite
in massive manganese rich matrix.
(John's collection).
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Cut and polished
fragment showing Rhodochrosite banding
(Jolyon's Collection)
Detail of Rhodochrosite
banding.
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Iron stained quartz
crystals with minor Baryte and calcite.
Most of the calcite on this piece has been etched away to reveal the
quartz.
(Jolyon's Collection).
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Goethite "Stalagmites"
encrusted with clear and smoky, double terminated quartz crystals
to about 3mm with a small group of baryte on the tip.
(Graham's Collection)
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A tiny Baryte
rosette attached to matrix of goethite with small quartz crystals.
(Graham's Collection)
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Another small
example of Rhodochrosite.
(Graham's Collection).
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And another
!
(Graham's Collection).
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A small cavity
lined with clear quartz crystals with a few micro-goethites attached.
(Graham's Collection).
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More barytes with
small "stalagmites" of goethite,
again encrusted with tiny double terminated quartz crystals.
(Graham's Collection).
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A close up
of some tiny goethite growths with Baryte in the background.
(Graham's Collection).
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An interesting
example showing the iron stained quartz crystals embedded
with calcite and other minerals in a definite layered growth pattern.
(Graham's Collection).
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