فوسژنیت
Sign in to savePhosgenite is a rare mineral consisting of lead carbonate chloride, (PbCl)2CO3. The tetragonal crystals are prismatic or tabular in habit: they are usually colorless and transparent, and have a brilliant adamantine lustre. Sometimes the crystals have a curious helical twist about the tetrad or principal axis. The hardness is 3 and the specific gravity 6.3. The mineral is rather sectile, and consequently was earlier known as corneous lead ().
Key facts
- Mineral.name
- Phosgenite
- Mineral.boxbgcolor
- C4B353
- Mineral.image
- Phosgenite-34631.jpg
- Mineral.caption
- Crystal of phosgenite from the Monteponi Mine, Iglesias, Sardinia, Italy (size: 3.0 x 3.0 x 2.5 cm)
- Mineral.category
- Carbonate minerals
- Mineral.formula
- (PbCl)2CO3
- Mineral.IMAsymbol
- Pho
- Mineral.strunz
- 5.BE.20
- Mineral.system
- Tetragonal
- Mineral.class
- Ditetragonal dipyramidal (4/mmm)H-M symbol: (4/m 2/m 2/m)
- Mineral.symmetry
- P4/mbm
- Mineral.unit cell
- a = 8.16 Å, c = 8.883(6) Å; Z = 4
- Mineral.color
- Pale yellow to yellowish brown, pale brown, smoky brown, smoky violet, colorless, pale rose, gray, yellowish gray, pale green
- Mineral.habit
- Short prismatic crystals, granular, massive
- Mineral.cleavage
- Distinct on {001} and {110}, indistinct on {100}
- Mineral.fracture
- Conchoidal
- Mineral.tenacity
- Sectile, flexible perpendicular to {001}
- Mineral.mohs
- 2–3
via Wikipedia infobox
Wikidata facts
- Subclass of
- carbonate and nitrate class of minerals
- Named after
- phosgene
- Image
- Phosgenite-RoyalOntarioMuseum-Jan18-09.jpg
Show 8 more facts
- Commons category
- Phosgenite
- Nickel-Strunz 9th edition (updated 2009)
- 5.BE.20
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 5.BE.20
- chemical formula
- Pb₂CO₃Cl₂
- streak color
- white
- crystal system
- tetragonal crystal system
- IMA Mineral Symbol
- Pho
- Strunz 8th edition (series ID, updated)
- Vb/B.05
Sources (1)
via Wikidata · CC0