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* quartz + feltspar | * quartz + feltspar | ||
* known as "rock flower" | |||
* hold most rocks together | * hold most rocks together | ||
* don't dissolve | * Silt particles don't dissolve | ||
* together = 60% of the earth's surface | * together = 60% of the earth's surface | ||
* | * holds water and air in the soil |