Question: where can quartz be found in the world
[{'answer': "Earth 's continental crust", 'provenance': [{'wikipedia_id': '25233', 'title': 'Quartz', 'start_paragraph_id': 1, 'start_character': 260, 'end_paragraph_id': 1, 'end_character': 286, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '25233', 'title': 'Quartz', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 302, 'bleu_score': 0.958740481558872, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10682585980692061626}, 'section': 'Section::::Abstract.'}]}]