Batu Kawi

Batu kawi
	; Batu kawi
Maklumat am
Kategori	Mineral sulfida
Formula kimia	Hidrargirum(II) sulfida, HgS
Pengecaman
Warna	Cochineal-red, towards brownish red and lead-gray
Tabii hablur	Rhombohedral to tabular; granular to massive and as incrustations
Sistem hablur	Trigonal
Pengembaran	Simple contact twins, twin plane {0001}
Pembelahan	Prismatic {1010}, perfect
Fraktur	Uneven to subconchoidal
Kekerasan skala Mohs	2.0-2.5
Kilau	Adamantine to dull
Indeks biasan	nω = 2.905 nε = 3.256
Sifat-sifat optik	Uniaxial (+)
Dwibiasan	δ = 0.351
Guris	Scarlet
Graviti tentu	8.176
Keterlarutan	1.04 x 10−25 g per 100 ml water (Ksp at 25 °C = 2 x 10−32)
Diafaneiti	Transparan dalam pecahan tipis

Batu kawi^[2] merujuk kepada galian berwarna merah bata berunsur hidrargirum(II) sulfida (HgS) merupakan sumber bijih paling umum untuk mendapatkan raksa.

Jenis Batu Kawi ditentukan berdasarkan cara terbentuknya iaitu secara:

Organik
Mekanik
Kimia

Ia digunakan sebagai pewarna sejak zaman kuno di Timur Dekat.

Rujukan sunting

^ Myers, R.J. (1986). "The new low value for the second dissociation constant of H₂S. Its history, its best value, and its impact on teaching sulfide equilibria". J. Chem. Ed. 63: 689, 687–690.
^ Wilkinson, Richard James (1932). "kawi". A Malay-English dictionary (romanised). I. Mytilini, Yunani: Salavopoulos & Kinderlis. m/s. 519 – melalui TROVE, Perpustakaan Negara Australia.

Bacaan tambahan sunting

Susan Stewart, 2014, "'Gleaming and deadly white': Toxic cosmetics in the Roman world," pp. 84f, 79-88, in History of Toxicology and Environmental Health: Toxicology in Antiquity II (Philip Wexler, Ed.), New York, NY, USA:Academic Press, ISBN 0-12-801634-5

Barone G., Di Bella M., Mastelloni M.A., Mazzoleni P., Quartieri S., Raneri S., Sabatino G., Vailati C.,Pottery production of the pittore di lipari: chemical and mineralogical analysis of the pigments, in 2 end European Mineralogical Conference, emc2016 “Minerals, fluids and rocks: alphabet and words of planet earth”, Rimini, 11-15 sett. 2016, p. 716

MSDS untuk sinabar Diarkibkan 2007-09-12 di Wayback Machine
Dartmouth Toxic Metals Research Program – Mercury Diarkibkan 2009-06-26 di Wayback Machine
Cinnabar visual reference

Templat:Ores

Rencana berkenaan kimia ini ialah rencana tunas. Anda boleh membantu Wikipedia dengan mengembangkannya.

Rencana geologi ini ialah rencana tunas. Anda boleh membantu Wikipedia dengan mengembangkannya.

[1] Myers, R.J. (1986). "The new low value for the second dissociation constant of H₂S. Its history, its best value, and its impact on teaching sulfide equilibria". J. Chem. Ed. 63: 689, 687–690.

[2] Wilkinson, Richard James (1932). "kawi". A Malay-English dictionary (romanised). I. Mytilini, Yunani: Salavopoulos & Kinderlis. m/s. 519 – melalui TROVE, Perpustakaan Negara Australia.

[2]

[1]