Mineral found in lake beds

• Mineral found in dried lake basins
• Mineral from dried lake basins
• Sodium carbonate source
• Gray mineral
• Gray-white mineral
• Sodium-rich mineral
• Sodium carbonate
• Vitreous mineral

Wikipedia Word definitions in Wikipedia
Trona is a genus of sea snails , marine gastropod mollusks in the family Cypraeidae , the cowries.