pegmatite in a sentence

Examples

1. Samarskite occurs in rare earth bearing granite pegmatites with other rare minerals.
2. It is a late-stage mineral in some complex granite pegmatites.
3. The underlying material of granite and pegmatite is exposed at the summit.
4. Highest ratios ( 10 or higher ) occur in pegmatites.
5. It occurs as a secondary beryllium mineral in granitic and alkalic pegmatites.
6. It is found as needle-like or prismatic crystals in pegmatite.
7. Clarkeite forms by oxidation and replacement of uraninite late during pegmatite crystallization.
8. These are commonly cut by late orogenic granites and pegmatites.
9. Uranium minerals were derived from uraniferous pegmatites in the sediment source areas.
10. The shaft into the uranium-bearing pegmatite reached a depth of.