Quartzite nhema inopenya igranite ine ruvara rwakasviba uye inogara kwenguva refu. Ruvara rwayo rwekutanga idema rakadzika, dema kana kuti dema remarasha. Hunhu hwayo hunonyanya kuzivikanwa imhando yemavara madiki esirivha kana machena (feldspar crystals) uye mica flakes inopenya, yakafanana negirasi renyeredzi rine madzerere, rinomonereka mudenga rehusiku rakasviba. Makristaro aya anopenya muchiedza, zvichiita kuti ive yakadzika uye ine magadzirirwo akasiyana, kusiyana nemamwe magranite matema zvachose, ayo angaratidzika seanofinha.
Quartzite nhema inopenya idombo rinoputika rakaoma zvikuru uye rakasimba, rinodzivirira kupera uye rinogara kwenguva refu. Pamusoro paro panowanzo penya kusvika pakupenya kwakanyanya kusimbisa ruvara rwaro uye kupenya kwaro. Ingave yakakweshwa kana kuti yakagadzirwa neganda, iyi quartzite nhema inoratidza runako rwayo.
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