JT IG 97. Some Forms of Crystals. 



The mineral species are named from left to right for each of the four rows : 

 1. Quartz. 2. Zircon. 3. Fluorite. 4. Garnet. 



5. Quartz. 6. Rock salt. 

 7 Gypsum. 8. Quartz. 9. Calcite. 



10 Emerald. 11. Gypsum. 12. Topaz. 13. Staurolite. 



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