alamosite
Sign in to saveAlamosite (Pb12Si12O36) is a colorless silicate mineral named after the place where it was discovered, Álamos, Sonora, Mexico. It is a rare secondary mineral occurring in the oxidized zones of lead-rich deposits. For example, the infobox picture shows its association with black leadhillite.
Key facts
- Mineral.name
- Alamosite
- Mineral.category
- Inosilicates
- Mineral.image
- Alamosite-Leadhillite-Melanotekite-ea6a.jpg
- Mineral.caption
- Transparent crystals of alamosite in the matrix of leadhillite and melanotekite
- Mineral.formula
- Pb12Si12O36
- Mineral.IMAsymbol
- Aam
- Mineral.strunz
- 9.DO.20
- Mineral.dana
- 65.7.1.1
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- P2/c
- Mineral.unit cell
- a = 11.209, b = 7.041 c = 12.22 [Å]; β = 113.15°; Z = 12
- Mineral.color
- Colorless
- Mineral.cleavage
- {010} perfect
- Mineral.mohs
- 4.5
- Mineral.luster
- Adamantine
- Mineral.refractive
- nα = 1.947, nβ = 1.961, nγ = 1.968
- Mineral.opticalprop
- Biaxial (−)
via Wikipedia infobox
Wikidata facts
- Image
- Alamosite-Leadhillite-Melanotekite-ea6a.jpg
Show 6 more facts
- Commons category
- Alamosite
- chemical formula
- PbSiO₃
- IMA Mineral Symbol
- Aam
- Strunz 8th edition (series ID, updated)
- VIII/D.17
- Nickel-Strunz 9th edition (updated 2009)
- 9.DO.20
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 9.DO.20
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{{Infobox mineral | name = Alamosite | category = Inosilicates | image = Alamosite-Leadhillite-Melanotekite-ea6a.jpg | caption = Transparent crystals of alamosite in the matrix of leadhillite and melanotekite | formula = Pb12Si12O36 |IMAsymbol=Aam | molweight = | strunz = 9.DO.20 | dana = 65.7.1.1 | system = Monoclinic | class = Prismatic (2/m) (same H-M symbol) | symmetry = P2/c | unit cell = a = 11.209, b = 7.041 c = 12.22 [Å]; β = 113.15°; Z = 12 | color = Colorless | habit = | twinning = | cleavage = {010} perfect | fracture = | tenacity = | mohs = 4.5 | luster = Adamantine | refractive = nα = 1.947, nβ = 1.961, nγ = 1.968 | opticalprop = Biaxial (−) | birefringence = δ = 0.021 | 2V = 65° (meas.) | pleochroism = | streak = White | gravity = 6.49 | density = | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Transparent to translucent | other = | references = }}
Alamosite (Pb12Si12O36) is a colorless silicate mineral named after the place where it was discovered, Álamos, Sonora, Mexico. It is a rare secondary mineral occurring in the oxidized zones of lead-rich deposits. For example, the infobox picture shows its association with black leadhillite.