This　study　details　the　investigation　of　a　black　powder　potential　ore　that　was　first　obtained　from　Jiangxi,　China.　Its　species,　composition,　and　morphology　are　unknown.　Preliminary　tests　revealed　that　the　silica　(SiO2)　content　of　this　ore　is　＞70%.　To　test　this　ore　more　comprehensively,　its　mineralogical　parameters　(such　as　mineral　composition,　ore　particle　size,　and　mineral　morphology)　are　investigated　using　X-ray　diffraction　(XRD),　inductively　coupled　plasma　mass　spectrometry　(ICP-MS),　differential　scanning　calorimetry–thermogravimetry　(DSC-TG),　Fourier-transform　infrared　spectrometry　(FTIR),　scanning　electron　microscopy　(SEM),　laser　particle　size　analysis,　and　elemental　analysis　(EA).　Based　on　these　analyses,　it　is　determined　that　it　is　micro/nano　silicon-carbon　ore,　and　its　genesis　and　species　are　discussed　herein.　The　gangue　minerals,　such　as　α-quartz,　kaolinite,　pyrite,　and　muscovite,　are　finely　disseminated　and　encapsulated　by　fixed　carbon.　The　ore　has　an　uneven　morphology,　with　many　holes　and　depressions.　Moreover,　nano-sized　needle-like　quartz　and　quartz　wrapped　by　carbon　are　found　on　the　surface　of　the　ore.　According　to　our　results,　this　ore　may　have　been　formed　by　the　long-term　accumulation　and　consolidation　of　phytoliths.　These　results　provide　a　technical　reference　for　the　development　and　utilization　of　the　identified　micro/nano　silicon-carbon　ore.　©　2022　by　the　authors.　Licensee　MDPI,　Basel,　Switzerland.