No precedentedphytolith mineralization have been found in the world except for recent years，a natural micro nano silicon carbon deposit with phytolith deposition was found in Shilukeng，Fengcheng City，Jiangxi Province. Light grey—grayish black silica rock，formed in the warm lake environment deposition from the middle Eocene of Paleogene to the early Miocene of Neogene is the ore bearing rock，which is composed of phytolith formed by the accumulation and consolidation of a large number of phytoliths without anysporopollen or very rare diatom.The porous silicon—carbon ore，is composed of micron nano quartz and fixed carbon，with a small number of other impurities，with about 65%~85%SiO2 content and 9%~20% fixed carbon can yield 49.7% of micron quartz 30% of carbon and 25% of 80~200 nm sized nano quartz.After wet physical separation，phytolith can be directly prepared into rubber reinforcing filler，high hard silicon carbide，sewage treatment and conductive materials.Mesoporous silicon，mesoporous carbon，silica，nano micro silica powder and other materials which has high industrial value，can be obtained through experiment on separation and purification of ore and mineral processing.Currently，this deposit is tentatively determined as a large natural micro nano silicon—carbon deposit.