Definition of Lamproite. Meaning of Lamproite. Synonyms of Lamproite

- Lamproite is an ultrapot****ic mantle-derived volcanic or subvolcanic rock. It has low CaO, Al2O3, Na2O, high K2O/Al2O3, a relatively high MgO content...
- largely composed of one of two characteristic rock types — kimberlite or lamproite. These rocks reflect the composition of the volcanoes' deep magma sources...
- a volcanic pipe of lamproite, rather than the more usual kimberlite pipe; much earlier attempts to mine diamonds from a lamproite pipe in Arkansas, United...
- Big Hole. Previously, the term kimberlite has been applied to olivine lamproites as Kimberlite II, however this has been in error. Kimberlite occurs in...
- prominent lamproite diamond source is the Argyle diamond mine in Australia. It is notable that the physical characteristics of Australian lamproite and the...
- kimberlite and lamproite occurrences occur as volcanic and subvolcanic diatremes and maars; lavas are virtually unknown. Vents of Proterozoic lamproite (Argyle...
- volcanic eruptions and deposited in igneous rocks known as kimberlites and lamproites. Synthetic diamonds can be grown from high-purity carbon under high pressures...
- been reduced by glacial and subaerial erosion. The volcano has produced lamproite magmas, and is the youngest volcano to have produced such magmas on Earth...
- The Ellendale Diamond Field is a cluster of diamond producing lamproite intrusions located 125 km ESE of Derby within the WNW trending Lennard Shelf to...
- Helenite (artificial gl**** made from volcanic ash) Iddingsite Kimberlite Lamproite Lapis lazuli Libyan desert gl**** Llanite Maw sit sit Moldavite Obsidian...