Sengierite is a rare oxide and hydroxide mineral, chemically a copper and uranyl vanadate, belonging to the carnotite group. Its chemical formula is Cu2(OH)2[UO2VO4]2·6H2O.
{{infobox mineral | name = Sengierite | category = Oxide and Hydroxide | image = Sengierite-497485.jpg | formula = Cu2(OH)2[UO2VO4]2·6H2O | IMAsymbol = Sgi | symmetry = Monoclinic 2/m | color = Olive-green, yellowish green | habit = Flattened thin plates, coatings | system = Monoclinic | cleavage = Perfect on {001} | tenacity = Brittle | mohs = 2.5 | luster = Adamantine, vitreous | streak = Light green | diaphaneity = Transparent | gravity = 4.05 | density = 4.05 g/cm3 (measured)4.1 g/cm3 (calculated) | refractive = nα = 1.760 – 1.770 nβ = 1.920 – 1.940 nγ = 1.940 – 1.970 | pleochroism = X: Bluish green, Y: Olive-green, Z: Yellowish green to colorless | 2V = Measured: 37° to 39°, Calculated: 36° | other = 25px Radioactive }}
Sengierite is a rare oxide and hydroxide mineral, chemically a copper and uranyl vanadate, belonging to the carnotite group. Its chemical formula is Cu2(OH)2[UO2VO4]2·6H2O.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).