Lepidolite in Quartz (Obelisk)

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lepidolite)

Rock Type: metamorphic

Lepidolite in Quartz (Obelisk)

Physical Properties

Hardness: 2.5-4 (Lepidolite) to 7 (Quartz mixture); Color: Pink to purple mica flakes in a cream or grey matrix; Luster: Pearly to vitreous; Crystal Structure: Monoclinic; Cleavage: Perfect basal.

Formation & Geological History

Formed in lithium-bearing granitic pegmatites during late-stage hydrothermal crystallization. It is often found associated with minerals like quartz, tourmaline, and spodumene.

Uses & Applications

Source of lithium, decorative lapidary work, jewelry, and widely used in the metaphysical and crystal collecting communities.

Geological Facts

Lepidolite is the most common lithium-bearing mineral and was first discovered in the 18th century. It is often nicknamed the 'peace stone' in spiritual circles due to its lithium content, which is used in mood-stabilizing medications.

Field Identification & Locations

Identify in the field by the distinct pink to lilac color and the presence of micaceous (shimmery, flaky) scales. Commonly found in Brazil, Africa (Zimbabwe), and the USA (California/Maine).

Identified on: 4/29/2026

Mode: Standard