spinel
51List of Cardcaptor Sakura characters — This article covers the major characters of Clamp s manga Cardcaptor Sakura and its respective anime and movies. The manga and anime focused on 10 year Japanese schoolgirl Sakura Kinomoto who finds the magical Clow Book in her father s basement… …
52Birthstones — ▪ Table Birthstones month traditional gemstone 20th century expansion synthetic supplement: trade name material of synthetic stone January garnet garnet dark red synthetic corundum February amethyst amethyst purple synthetic corundum March… …
53Hope Diamond — French Blue redirects here. For the color, see French blue (color). Hope Diamond Hope Diamond in the Smithsonian Museum of Natural History Weight 45.52[1][2] …
54Black Prince's Ruby — The Black Prince s Ruby is actually a bead shaped spinel weighing roughly 170 carats (34 g), approximately the size of a chicken egg. It is currently set in the cross pattée above the 317.40 carat (63.48 g) Cullinan II in the front of the… …
55Abiogenic petroleum origin — is a largely abandoned hypothesis that was proposed as an alternative to theory of biological petroleum origin. It was relatively popular in the past, but it went largely forgotten at the end of the 20th century after it failed to predict the… …
56Imperial Crown of Russia — The Imperial Crown of Russia, also known as the Great Imperial Crown, is the crown that was used by the Emperors of Russia until the abolition of the monarchy in 1917. The Great Imperial Crown was first used in a coronation by Catherine II, and… …
57Spinell — Blauer Spinell von 1,83 ct und roter Spinell von 4,13 ct Chemische Formel MgAl2O4 Mineralklasse Oxide und Hydroxide 4.BB.05 (8. Auflage: IV/B.01 10) (nach Strunz) 07.02.01.01 (nach …
58List of Empire ships (Si–Sy) — The Empire ships were a series of ships in the service of the British Government. Their names were all prefixed with Empire . They were mostly used during World War II by the Ministry of War Transport (MoWT), who owned the ships but contracted… …
59Taaffeite — Magnesiotaaffeite 2N’2S (Mg3Al8BeO16) General Category Oxide minerals …
60Nichromite — General Category Spinel Group Chemical formula (Ni,Co,Fe)(Cr,Fe,Al)2O4 Strunz classification 04.BB.05 Crystal symmetry …
