| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,808,496,165 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
allanite |
Also found in: Encyclopedia, Wikipedia | 0.03 sec. |
|
allanite [ˈæləˌnaɪt] n (Earth Sciences / Minerals) a rare black or brown mineral consisting of the hydrated silicate of calcium, aluminium, iron, cerium, lanthanum, and other rare earth minerals. It occurs in granites and other igneous rocks. Formula: (Ca,Ce,La,Y)2(Al,Fe,Be,Mn,Mg)3(SiO4)3(OH) [named after T. Allan (1777-1833), English mineralogist] How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
Allanite is the host rare
earth minerai and occurs mainly as finely disseminated grains throughout
the rock. The REEs at
Hoidas Lake are hosted in the phosphate mineral apatite and the
silicate mineral allanite. The crystals
occur in a swarm of closely spaced quartz [+ or -] siderite [+ or -]
fluorite [+ or -] allanite veins that fill tension gashes in a
Mississippian-age (~360 Ma) syenite stock. |
| Dictionary, Thesaurus, and Translations |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|