decorative umber colored quartz crystals inside broken rock geode on side table

geology geological specimen hand sample treasure collection rock stone dark rustic cluttered items household decor decoration memento objects items displayed SiO2 silica tetrahedron hollow gas pocket fluid formation process cracked halved jumbo agate citrine one a kind meaning type rockhoud chasing volcanic sedimentary minerals mineralogy collection collector crystalography crystallography solid state chemistry metaphysical healing properties energy energies protection spiritual transformation