ʻO ka pauka Mika he pauka mineral maoli me ka luster metala a me ke aniani, i hana ʻia e lilo i puaʻa maʻamau. He silicate kona hui kemika, ka mea nui i haku ʻia me ka magnesium silicate a me ka alumina potassium. ʻO nā hiʻohiʻona nui o ka pauka mica penei: 1. Loaʻa iā ia ka luster maikaʻi a me ke aniani, hiki ke hana i ka puaʻa e hōʻike i nā hopena metallic like ʻole i ka uhi; 2. Loaʻa i ka wela maikaʻi a me nā waiwai insulation uila; 3. Me kekahi paʻakikī a me ka lōʻihi, hiki ke hoʻohanaʻia ma keʻano he mea nui i nā pena a me nā uhi; 4. Loaʻa i kekahi mau kemika kūpaʻa, hiki ke hoʻoheheʻe piha ʻia a hui pū me nā resins a me nā pena; 5. Hiki ke hoʻohana nuiʻia i nā mea hoʻonani likeʻole, nā'ahuʻula, ka paʻi, ka uila, ke kūkuluʻana a me nāʻoihana'ē aʻe.