Argyrodite is an uncommon silver germanium sulfide mineral with formula Ag8GeS6. The color is iron-black with a purplish tinge, and the luster metallic.
via Wikipedia infobox
{{Infobox mineral | name = Argyrodite | category = Sulfide mineral | image = Argyrodite-170093.jpg | caption = | formula = Ag8GeS6 |IMAsymbol=Agy | strunz = 2.BA.35 | system = Orthorhombic | class = Pyramidal (mm2) H-M symbol: (mm2) | symmetry = Pna21 | unit cell = a = 15.149, b = 7.476 c = 10.589 [Å]; Z = 4 | color = Black, purplish tinge | habit = Pseudo-octahedra or pseudo-cubic, dodecahedra, cubes; radiating crystal aggregates, botryoidal crusts, or massive | twinning = Pseudospinel law {111} penetration twins | cleavage = Absent | fracture = Uneven to conchoidal | mohs = 2.5 | luster = Metallic | refractive = | opticalprop = Weakly anisotropic | birefringence = | pleochroism = Weak | streak = | gravity = 6.2-6.5 | density = | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Opaque | references = }}
Argyrodite is an uncommon silver germanium sulfide mineral with formula Ag8GeS6. The color is iron-black with a purplish tinge, and the luster metallic.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).