Question

2. Mica is a ...........
mineral
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Answer 1

ᴍɪᴄᴀ, ᴀɴʏ ᴏғ ᴀ ɢʀᴏᴜᴘ ᴏғ ʜʏᴅʀᴏᴜs ᴘᴏᴛᴀssɪᴜᴍ, ᴀʟᴜᴍɪɴᴜᴍ sɪʟɪᴄᴀᴛᴇ ᴍɪɴᴇʀᴀʟs. ɪᴛ ɪs ᴀ ᴛʏᴘᴇ ᴏғ ᴘʜʏʟʟᴏsɪʟɪᴄᴀᴛᴇ, ᴇxʜɪʙɪᴛɪɴɢ ᴀ ᴛᴡᴏ-ᴅɪᴍᴇɴsɪᴏɴᴀʟ sʜᴇᴇᴛ ᴏʀ ʟᴀʏᴇʀ sᴛʀᴜᴄᴛᴜʀᴇ. ᴀᴍᴏɴɢ ᴛʜᴇ ᴘʀɪɴᴄɪᴘᴀʟ ʀᴏᴄᴋ-ғᴏʀᴍɪɴɢ ᴍɪɴᴇʀᴀʟs, ᴍɪᴄᴀs ᴀʀᴇ ғᴏᴜɴᴅ ɪɴ ᴀʟʟ ᴛʜʀᴇᴇ ᴍᴀᴊᴏʀ ʀᴏᴄᴋ ᴠᴀʀɪᴇᴛɪᴇs—ɪɢɴᴇᴏᴜs, sᴇᴅɪᴍᴇɴᴛᴀʀʏ, ᴀɴᴅ ᴍᴇᴛᴀᴍᴏʀᴘʜɪᴄ.

ᴍɪss ᴘʜᴇɴᴏᴍᴇɴᴀʟ

Answer 2

Mica, any of a group of hydrous potassium, aluminum silicate minerals. It is a type of phyllosilicate, exhibiting a two-dimensional sheet or layer structure. Among the principal rock-forming minerals, micas are found in all three major rock varieties—igneous, sedimentary, and metamorphic.

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