allargentum
Sign in to saveAllargentum is a mineral from the class of antimonides, superclass of sulfides and sulfosalts (sometimes ascribed to the natural elements and alloys class), with formula written as Ag1−xSbx, where x = 0.09–0.16. This moderately rare mineral is found in silver ores and is therefore named from the Greek ἄλλος (allos, "another") and the Latin argentum ("silver"). Its Vickers hardness is 172–203.
Key facts
- Mineral.name
- Allargentum
- Mineral.category
- Sulfide mineral
- Mineral.image
- Allargentum-d32a.jpg
- Mineral.imagesize
- 260px
- Mineral.caption
- Allargentum on carbonate; size 3.2×2.7×1.4 cm
- Mineral.formula
- Ag1−xSbx
- Mineral.IMAsymbol
- All
- Mineral.strunz
- 2.AA.30
- Mineral.dana
- 02.02.01.02
- Mineral.system
- Hexagonal
- Mineral.class
- Dihexagonal dipyramidal (6/mmm) H-M symbol: (6/m 2/m 2/m)
- Mineral.symmetry
- P63/mmc
- Mineral.unit cell
- a = 2.945, c = 4.77 [Å], Z = 2
- Mineral.color
- Silver gray
- Mineral.mohs
- 4
- Mineral.luster
- Metallic
- Mineral.gravity
- 10.0 (meas.), 10.12 (calc.)
- Mineral.diaphaneity
- Opaque
via Wikipedia infobox
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Encyclopedic overview
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Allargentum is a mineral from the class of antimonides, superclass of sulfides and sulfosalts (sometimes ascribed to the natural elements and alloys class), with formula written as Ag1−xSbx, where x = 0.09–0.16. This moderately rare mineral is found in silver ores and is therefore named from the Greek ἄλλος (allos, "another") and the Latin argentum ("silver"). Its Vickers hardness is 172–203.
==References==
Excerpted from Wikipedia’s “allargentum” article, available under the CC BY-SA 4.0 licence.