Holmquistite is a lithium magnesium aluminium inosilicate mineral with chemical formula . It crystallizes in the orthorhombic crystal system as prismatic crystals up to or as massive aggregates. It has a Mohs hardness of 5–6 and a specific gravity of 2.95 to 3.13.
Holmquistite is a lithium magnesium aluminium inosilicate mineral with chemical formula {{chem2|Li2(Mg,Fe^{2+})3Al2Si8O22(OH)2}}. It crystallizes in the orthorhombic crystal system as prismatic crystals up to or as massive aggregates. It has a Mohs hardness of 5–6 and a specific gravity of 2.95 to 3.13.
Color could vary from black, dark violet to light sky blue.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).