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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
Size: 260x260x65mm
Includes a specially designed container for growing quality crystal geodes and contents for making 2 complete sets of crystal geodes
By: Bruce Watt
750g approx
a natural shell and delicate natural fibre woven disc
Plankton earring Size: 260x260x65mmHealthy waterways and oceans are essential for our increasingly urbanised world. Yet monitoring water quality in aquatic environments is a challenge, as it varies from hour to hour due to storm water and currents. Being at the base of the aquatic food web and present in huge numbers, plankton are strongly influenced by changes in environment and provide an indication of water quality integrated over days and weeks. Plankton are the aquatic version of
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