Definition: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Input: These phyllosilicates are also called isinglass. Members exhibit monocline crystals and have excellent basal cleavage. Types include iron-rich biotite, lepidolite, and muscovite and class members are used as electrical insulation and Christmas tree snow. For ten points, identify the hydrous silicates of aluminum and potassium that are composed of many thin sheets.
Output:
Science