seybertite
noun
sey·bert·ite
ˈsībə(r)tˌīt
plural -s
: a basic aluminosilicate Ca(Mg,Al)3(Al,Si)4(O,OH)12 of the clintonite group consisting of calcium, magnesium, and aluminum, occurring in monoclinic crystals and foliated masses and having a reddish brown, copper red, or yellowish color and submetallic luster (hardness 4–5, specific gravity 3–3.1)
Word History
Etymology
French, from Henry Seybert †1883 American mineralogist + French -ite
- indefectibilities
- indefectibility
- indefectible
- indefectibly
- indefective
- indefectively
- indefensibilities
- indefensibility
- indefensible
- indefensiblenesses
- indefensibly
- indeficiency
- indeficient
- indefinabilities
- indefinability
- indefinable
- indefinableness
- indefinablenesses
- indefinables
- indefinably
- indefinite
- indefinite article
- indefinite integral
- indefinite pronoun
- indefinite proposition