Lithium is present as spodumene or lepidolite within pegmatite.
From the en.wikipedia.org
Amblygonite occurs with spodumene, apatite, lepidolite, tourmaline, and other lithium-bearing minerals in pegmatite veins.
From the en.wikipedia.org
Previous work on the property conducted in the 1970s defined an area of 45,000 square metres of outcropping spodumene pegmatite dykes.
From the foxbusiness.com
Granitic pegmatites also provide the greatest abundance of lithium-containing minerals, with spodumene and petalite being the most commercially viable sources.
From the en.wikipedia.org
More examples
A pyroxene mineral consisting of lithium aluminum silicate; a source of lithium
LiAlSi2O6. A rare mineral found in pegmatites. The gemmy green variety is hiddenite, the pink to violet variety is kunzite. See also the field guide entry for spodumene.