The river garnet(alluvial) is river side.

2. phyical structure. The rock garnet has the sub-conchoidal fracture, so have sharp edges,and higher efficiency.

the river garnet riverside, so more cleaner .

3. color. The rock garnet is red, and the river garnet is pink.

4.origin. rock garnet mined from China, the river garnet mined from India or Austrilia

5.chloride content. rock garnet have almost none chloride content, it is harmless to the humans and environment, and the river/sea garnet contains higher chloride content.

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