I realised something I need to learn... again.
I have a passion for gems and minerals, but I don't know what them are made of or which categorite they belong to. This is what I've read so far... Apatite and phosphates, barite and sulfates, fluorite and halides, calcite and carbonates, quartz and oxides, pyrite and sulfides, tourmaline and silikates, gold and elements, moldavite and tektites, meteorites, fossils and other...
I just had to point out a typo which is kind of funny... I wrote categorite. Maybe I've read the labels of the stones too much hahaha!
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