Question:
Kilap: Nonmetallic (vitreous) Kristal: Orthorhombic/monoclinic Kekerasan: 6-7 Belahan: Cleavage dua arah Warna: Hitam kehijauan Habit: Prismatic, granular Streak: Unobtainable Kelompok: Silikat
Author: Ardian Annafi
Answer:
Amphibole (hornblende)
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Author
Ardian Annafi