This page will contain all my samples of the element Calcium (Ca).
Composition: CaC2O4 x H2O
Slice of selenite mineral - calcium sulfate.
Composition: CaSO4 x 2H2O
Pieces of fossilized belemnites, calcium carbonate.
Composition: CaCO3
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Lithium metal from a supermarket Lithium (Li) is a metal that is rather sought after by collectors - at least in it's pure, unoxidized ... -
Low pressure ampoules of Hydrogen, Nitrogen, Oxygen and five of the noble gases 10x40mm ampoule, borosilicate glass. I managed to get these... -
Cobalt is pretty easy to come across! Despite pure cobalt metal (Co), as show in the form of electrolytic flakes below not being all that ea...
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