metamorphic
Lepidolite in Quartz (Obelisk)
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lepidolite)
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.
- Hardness
- 2
- Color
- Pink to purple mica flakes in a cream or grey matrix
- Luster
- Pearly to vitreous
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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).
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