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Icelandite
Icelandite

Anthracite
Anthracite



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Icelandite
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Anthracite

Icelandite vs Anthracite Tekstur

1 Tekstur
1.1 tektur
aphanitic kanggo porphyritic
amorf, glassy
1.2 werna
bluish - werna abu-abu, grey, pink, kuning
ireng, coklat, coklat peteng, grey, cahya kanggo werna abu-abu peteng
1.3 pangopènan
liyane
kurang
1.4 kekiatan
awet
awet
1.4.1 banyu tahan
1.4.2 ngeruk tahan
1.4.3 rereged tahan
1.4.4 angin tahan
1.4.5 asam tahan
1.5 katon
kurang lan alus
veined utawa pebbled