igneous
Plum Blossom Tourmaline
Tourmaline with Lepidolite (Na,Ca)(Li,Mg,Al)3Al6(BO3)3Si6O18(OH)4
Hardness: 7-7.5 (Tourmaline) / 2.5-4 (Lepidolite matrix); Color: Deep purple, lilac, and greyish-black; Luster: Vitreous to pearly; Crystal structure: Trigonal/Monoclinic; Cleavage: None/Perfect basal.
- Hardness
- 7-7
- Color
- Deep purple, lilac, and greyish-black
- Luster
- Vitreous to pearly
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Physical properties
Hardness: 7-7.5 (Tourmaline) / 2.5-4 (Lepidolite matrix); Color: Deep purple, lilac, and greyish-black; Luster: Vitreous to pearly; Crystal structure: Trigonal/Monoclinic; Cleavage: None/Perfect basal.
Formation & geological history
Formed in lithium-rich granitic pegmatites through hydrothermal processes. The purple 'plum' blossoms are typically Lepidolite patterns hosted within a darker Tourmaline or Quartz matrix.
Uses & applications
Primarily used for ornamental purposes, lapidary arts like spheres or cabochons, and as a collector's specimen for those interested in lithium-bearing minerals.
Geological facts
This material is often called 'Plum Blossom' due to the flower-like lilac patterns of Lepidolite. It is frequently associated with other rare minerals like Cleavelandite and Spodumene.
Field identification & locations
Identify by the high-contrast purple mica clusters within a harder silicate matrix. It is commonly found in Brazil, Madagascar, and Afghanistan. Collectors look for vibrant purple saturation and clear flowery patterns.
