Templat:Infobox mineral
Tampilan
Penggunaan
Batu delima | |
---|---|
Umum | |
Kategori | Variasi mineral |
Rumus kimia | aluminium oksida dengan kromium, Al2O3:Cr |
Identifikasi | |
Warna | Merah, bisa kecoklatan, keunguan atau kemerahjambuan |
Perawakan | Bervariasi tergantung daerahnya. Prisma heksagonal bertabel buntu. |
Sistem kristal | Kelompok Ruang Simbol (-3 2/m) Trigonal (Heksagonal Skalenohedral): R-3c |
Belahan | Tidak ada bersihan asli |
Pecahan | Tidak genap atau konkoidal |
Skala kekerasan Mohs | 9.0 |
Kilap | Kekacaan |
Gores | putih |
Diafaneitas | transparan |
Kepadatan | 4'000 Kg/m3 |
Indeks pembiasan | nω=1.768 - 1.772 nε=1.760 - 1.763, Bias ganda 0.008 |
Pleokroisme | Merah kejinggaan, merah keunguan |
Fluoresens ultraviolet | merah di bawah gelombang panjang |
Titik lebur | 2044 °C |
Kelarutan | tidak ada |
Variasi utama | |
Safir | Semua warna kecuali merah |
Korundum | berbagai warna |
Emeri | Granuler |
{{Infobox mineral | name = | boxwidth = | boxbgcolor = | image = | imagesize = | alt = | caption = | category = | formula = | strunz = | dana = | symmetry = | unit cell = | molweight = | color = | colour = | habit = | system = | twinning = | cleavage = | fracture = | tenacity = | mohs = | luster = | streak = | diaphaneity = | gravity = | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = | var1 = | var1text = | var2 = | var2text = | var3 = | var3text = | var4 = | var4text = | var5 = | var5text = | var6 = | var6text = }}