igneous
Lepidolite Granite
Granite with lepidolite (K(Li,Al)3(Si,Al)4O10(F,OH)2)
AI-generated identification · may be incorrectHardness of 6 on the Mohs scale for the granite matrix and 2.5-4 for the lepidolite flakes. Color is a combination of pinkish-tan feldspar and purple to lilac mica spots with a vitreous to pearly luster.
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Physical properties
Hardness of 6 on the Mohs scale for the granite matrix and 2.5-4 for the lepidolite flakes. Color is a combination of pinkish-tan feldspar and purple to lilac mica spots with a vitreous to pearly luster.
Formation & geological history
Formed through the slow cooling and crystallization of silica-rich magma deep within the Earth's crust, enriched in lithium and potassium.
Uses & applications
Used primarily as a decorative stone, lapidary material, and collector specimen due to its attractive purple mica inclusions.
Geological facts
Lepidolite is a primary ore of the alkali metal lithium, which is essential for modern rechargeable batteries.
Field identification & locations
Identified by the distinct lilac to purple flaky mineral aggregates embedded within a pale feldspar and quartz host rock.
