Question: what is the most abundant mineral that forms from evaporating water
[{'answer': 'gypsum', 'provenance': [{'wikipedia_id': '186182', 'title': 'Evaporite', 'start_paragraph_id': 6, 'start_character': 561, 'end_paragraph_id': 6, 'end_character': 567, 'bleu_score': 1.0, 'section': 'Section::::Evaporite depositional environments.:Marine evaporites.\n'}]}, {'provenance': [{'wikipedia_id': '186182', 'title': 'Evaporite', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 1223, 'bleu_score': 0.9617803083225531, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11491570964433815760}, 'section': 'Section::::Evaporite depositional environments.:Marine evaporites.\n'}]}]