Durnford Quarry
Geoff
inspecting a collection of calcite crystals.
At this location
one could expect to find Goethite, Quartz, Calcite, Rhodochrosite and
other manganese minerals.
Cavity lined with tiny sprays of goethite needles. (Nicola's collection)
Detail of goethite needles.
Another example of goethite needles lining a cavity in massive goethite
(John's collection)
More Goethite with tiny Baryte crystals attached.
Small isolated Baryte crystals on massive Goethite.
Baryte on goethite
matrix (John's collection)
Detail of baryte
Goethite lined cavity in massive goethite with quartz crystals.
Detail of quartz crystals.
Massive Rhodochrosite
(Nicola's Collection)
More Rhodochrosite
in massive manganese rich matrix.
(John's collection).
Cut and polished
fragment showing Rhodochrosite banding
(Jolyon's Collection)
Detail of Rhodochrosite
banding.
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).
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)
A tiny Baryte
rosette attached to matrix of goethite with small quartz crystals.
(Graham's Collection)
Another small
example of Rhodochrosite.
(Graham's Collection).
And another
!
(Graham's Collection).
A small cavity
lined with clear quartz crystals with a few micro-goethites attached.
(Graham's Collection).
More barytes with
small "stalagmites" of goethite,
again encrusted with tiny double terminated quartz crystals.
(Graham's Collection).
A close up
of some tiny goethite growths with Baryte in the background.
(Graham's Collection).
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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