1. A process for identifying minerals or crystals; a small rod is coated with a powdered form of the substance and subjected to suitably modified X-rays; the pattern of diffracted rings is used for identification
   - powder method, powder technique

Type of: photography

• rouge
• rouge et noir
• rouge plant
• rougeberry
• rouged
• rough
• social disease
• social drinker
• social engineering
• social event
• social function
• social gathering
• social group
• social insect
• social insurance
• social insurance number
• social intercourse
• social lion
• social movement
• social occasion
• social organisation
• social organization
• social phobia
• social policy
• social process